Get ready for the most detailed Fitbit Comparison in 2021.

We love fitness trackers and Fitbit is the best on the market, that’s why we put the extra effort and start with a Comparison chart, then we review each Fitbit model, and finally, we compare them by features.

Let’s find out Which one is the Best Fitbit for your wrist and needs.

Fitbit Comparison Chart 2021

This is a summary, just before we get into more details about features, price, battery life, and much more.

Fitbit ModelThe GoodThe Bad
Fitbit Charge 4
compare fitbit models 2020
- Built-in GPS
- Heart Rate tracking
- Activity, and sleep tracking
- Swim proof to 50m
- 7 days Battery life
- Spotify
- Heart Rate can be laggy
- No microphone for phone calls
Fitbit Sense
- EDA Scan
- ECG app
- Built-in GPS
- Fast Charging
- Swim proof to 50m
- Fitbit OS still needs Work
- Bad inductive button
Fitbit Luxe
- Heart Rate tracking
- Fast Charging
- Swim proof to 50m
- Stress tracking
- Sleep Tracking
- No Built-in GPS
- No Fitbit Pay
Fitbit Versa 3
- Alexa
- Heart Rate tracking
- Built-in GPS
- Fast Charging
- Swim proof to 50m
- No ECG or EDA Scan
- Insights lacking on some data
Inspire 2
- Heart Rate tracking
- 10 Days Battery
- Fast Charging
- Swim proof to 50m
- Sleep Score
- No built-in GPS
- If wet you need to remove the band
Fitbit Versa 2
- Alexa Integration
- Color Touchscreen
- Cheapest Smartwatch ever
- 6 days of battery life
- Women health control
- Waterproof to 50m
- No GPS built-in
- No offline Spotify Playback
Fitbit Charge 3
compare fitbit models 2020
- Heart Rate tracking
- Activity, and sleep tracking
- Swim proof to 50m
- Female Health Tracking
- Touchscrenn
- 7 days Battery life
- No GPS
- NFC pay only special edition
Fitbit Ionic
- Lightweight and comfortable
- Waterproof to 50m
- Fitbit Pay works well
- Great fitness features
- Solid battery life (5 days)
- Heart rate and relative SPO2
- Little bit slow
- Shortage of apps
Fitbit Inspire HR
Fitbit comparison chart 2019
- 24/7 heart rate tracking
- Step, activity, and sleep tracking (the most advanced technology to date)
- Swim proof and water resistant
- Female health tracking
- Battery life of up to 5 days
- No swim tracking
- No NFC Pay
Fitbit Charge 2
compare fitbit models 2018
- Bigger display
- Heart rate tracking
- Automatic workout detection
- Interchangeable bands
- Affordable price
- 5-day battery life
- Sleep Stages and Insights
- Not swim resistant
- Hard to see display in sunlight
- Limited phone notifications
- No GPS
- No ANT+ support
Fitbit Versa
Fitbit comparison chart 2019

- Great Design
- Color Touchscrenn
- Cheapest Smartwatch ever
- 4 days battery life
- Women health control
- Waterproof to 50m
- Battery life not as good as Ionic 
- No GPS built-in 
Fitbit Alta HR
- Slim design
- Heart rate monitor
- 7 Days battery
- Sleep tracking
- Comfortable
- Basic exercise tracking
- No GPS built-in
- Not waterproof
Fitbit Blaze
- On-watch workouts
- Affordable price
- Heart Rate monitoring
- Five-day battery life
- Comfortable design
- Large, readable display
- Display doesn’t stay on
- It’s wide
- No inbuilt GPS
- Not water resistant
Fitbit Flex 2
Fitbit comparison chart 2018
- Sleeker design
- Waterproof to 50m, lap counting
- Comfortable and light
- 5 Days battery life
- Solid swim tracking
- Great value for money
- Basic exercise tracking
- Basic notifications
- Slow to charge
Fitbit Surge
Compare Fitbit models
- Built-in GPS
- Heart-rate monitor
- Classic watch clasp
- Always-on display,
- LCD Display
- 7 days Battery life
- Slightly bulky body and strap
- Pricey for an activity tracker
- It can’t be worn while swimming
Fitbit Charge HR
which Fitbit is the best for you?
- Accurate heart rate tracking
- Simple, clean design
- Durable build
- Accurate step tracking
- Entry-level price point
- 5-day battery life
- Not waterproof
- Display is easily scratched
- Uses proprietary charging cable
Fitbit Zip
- LCD display
- Clip is sturdy and reliable
- Battery lasts 5-6 months
- Battery replacement cost $5
- Has a clock on the display
- Connects via Bluetooth
- No sleep tracking
- Can’t be worn on the wrist
- No alarm feature
- No sleep activity tracker
Fitbit One
compare fitbit models
- Easy to read display
- 10 to 14 Days battery life
- Secure Clip almost too secure
- Altimeter for counting stairs
- Small and light
- OLED screen, with a clock
- Difficult to check current stats
- Vibration alarm is not strong
- Easy to forget before do laundry
Fitbit Flex
- Cheaper than the competition
- Water resistant
- Lightweight wristband
- Track activity and sleep
- Wireless syncing over Bluetooth 4.0
- Convenient, simple LED display
- Not as accurate as other Fitbits
- Display isn’t informative
- Strap lacks design
- Few Android devices supported
Fitbit Alta
difference between fitbits
- 5 days battery life
- Movement reminders
- Sleek design
- Lightweight
- OLED, tap display
- Automatically tracks workouts
- Overly sensitive step tracker
- No GPS
- Not waterproof
- No heart-rate monitor

Best Fitbit For You

Fitbit is the leader on Fitness Trackers and provides the latest features and functions, such as multi-sport recording, GPS tracking, and wireless syncing, all packed in a beautiful and durable package.

You will also get your stats displayed in real-time, one thing the competition can’t claim. Their activity trackers exceed expectations: they do not just inform you when and how much you are moving, they also let you know if you’re not moving enough to get you going.

In addition, they also offer a range of Smartwatches and Fitness Trackers with Smartwatch functionalities that can give you extra flexibility such as paying right from your wrist. manage your stress levels, making and receiving calls, using Alexa Voice to control your smart appliances, and much more!.

But which one is the right one for you?

The range of Fitbit models is getting wider by the year but don’t worry about it, we will explain the difference between the Fitbit’s and compare all of them so you can pick the best Fitbit fitness tracker, or smartwatch, for your needs or for your loved ones.

Top Pick

Listed below we compare the various Fitbit models.

Check Today’s price on Amazon >

We find the Charge 4 to be the most versatile one. We always like the Charge series but the 4, which includes GPS, puts the new Fitness tracker on the Top of the list.

Besides the Built-in GPS, the tracker comes with a touchscreen Display, high-end features, amazing battery life, heart rate tracking, and much more. All these packed on a beautiful watch that will improve your health and fitness levels without a doubt.

Fitbit Price

Let’s begin with the main factor: Cost. The range of Fitbit models is wide and the prices as well, so we put the list of the best Fitbit prices:

  • Fitbit Charge 4  – US$149.95 – view today’s best prices on Amazon.
  • Fitbit Sense – US$290.00 – view today’s best prices on Amazon.
  • Fitbit Luxe – US$149.95 – view today’s best prices on Amazon.
  • Fitbit Versa 3 – US$229.95 – view today’s best prices on Amazon.
  • Fitbit Inspire 2 – US$99.95 – view today’s best prices on Amazon.
  • Fitbit Versa 2 – US$178.95 – view today’s best prices on Amazon.
  • Fitbit Charge 3 – US$210.99 – view today’s best prices on Amazon.
  • Fitbit Inspire HR – US$97.00 – view today’s best prices on Amazon.
  • Fitbit Ionic – US$269.00 – view today’s best prices on Amazon.
  • Fitbit Versa – US$199.95 – view today’s best prices on Amazon.
  • Fitbit Flex 2 – US$279.99 – view today’s best prices on Amazon.
  • Fitbit Charge 2 – US$175.95  – click here to view today’s best prices on Amazon.
  • Fitbit Blaze – US$379.99 – view today’s best prices on Amazon.

What is the Cheapest Fitbit?

Fitbit fluctuate in terms of price but today’s best deal for a Fitbit tracker is the Fitbit Inspire that cost just $84.00

If you want to know more about the features go Here to Amazon where you will find all the information about it.

Check Our review of the Best Cheap Fitbit to buy

Compare Fitbit Models 2021

Fitbit Charge 4 – Best Fitness Tracker

Price: $149.95 – from Amazon

Screen: Touchscreen | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: YES | Battery life: 7 days | Compatibility: Android/iOS/Windows

Our Top pick is the latest Fitness Tracker, the Fitbit Charge 4 a full fitness tracker that will bring to the table a powerful new Feature: BUILT-IN GPS, and we put it on Caps cause it’s a biggie.

It is a powerful upgrade that will give you a higher end of tracking when it comes to accuracy. The GPS will track distance on a higher-end level. The feature is best for runners, cyclists, marathon, and Triathlon athletes or folks that take their tracking seriously.

There’s some new upgrades besides the GPS on the Charge 4, such as NFC payments that will give you the ability to pay using your credit card right from your watch. So we can say that you will have some smart features on this fitness tracker.

Then you also have the addition of Spotify that will allow you to play song list on your watch.

On the Sleeping department there are some addons as well, such as the long waited for all: Turn Off Notification on the Sleep mode, so you can sleep without any vibrations or sounds. They also add the new Estimated Oxygen Variation Chart that is connected with the data from the SpO2 monitor and it will give you accurate data on your sleeping patterns preventing problems such as sleep apnea.

Best Features: Besides the ones that we mention the tracker can deliver a high quality of tracking. With the Fitbit tracking level at its max, you can have a complete exam on your overall health, including your fitness activities, a complete understanding of your sleeping patterns, your heart rate during your day and night, and data on how to improve them.

There’s so much more to talk about the tracker that, in case you would like to know more, you can check our full Review Here.

Great for: Athletes, Runners, and Cyclists who would need to have the most accurate data when tracking their activities.

Fitbit Sense – Best Smartwatch

Price: $290.00 – from Amazon

Screen: AMOLED | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Yes | Battery life: 6 days | Compatibility: Android/iOS/Windows

The Sense its the Smartest Tracker from Fitbit with New health Smart Features, and a lot of enhanced functionalities.

With an EDA Scan that detects electrodermal activity and measures your stress levels, and an ECG app that can take on-the-spot readings of your heart rhythm at any time. Fitbit it’s taking the Smart experience to a New Level.

Oher Smart features such as NFC Payments, female health tracking, and Alexa voice control are included, and functions such as SpO2 and PurePulse 2.0 are upgraded for better performance.

Best Features: There’s a lot of great features to choose from, but the main ones are the Health-related (EDA Stress Level, ECG Heart Readings), and the Built-in GPS for Accurate map and routes tracking.

Great for: people trying to get the Full Smart Experience.

Check Our Full Review >

Fitbit Luxe

Price: $149.95 – from Amazon

Screen: AMOLED | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Only connected | Battery life: 5 days | Compatibility: Android/iOS/Windows

The Fitbit Luxe came to the market to fill a gap that Fitbit was missing: style, this is not only the most stylish and luxurious tracker but is also the smartest and sleekest without sacrificing features for style.

It’s able to track not only your steps and sleep patterns but also can monitor your stress levels, heart rate, respiration, and workouts, it also features a blood oxygen saturation sensor that will be enabled with a future firmware update.

The body of the Luxe is a standard 1.43 by 0.69 by 0.40 inches (LWH) and with a screen size of 0.76-inch that features an AMOLED color screen, another difference that sets the Luxe apart from its predecessors.

Some other features that come along are the 20 + exercises modes that will help you to automatically track your exercises, it’s swim-proof up to 50 meters, and will show all your smartphone notifications right on your wrist.

Best Features: There’s a lot to love about this tracker, when it comes to stress monitoring is one of the top trackers in the market. But for us, the main feature that sets it apart is the stylish gorjana design and bands that will transform the tracker into a piece of jewelry.

Great for: Folks that look for a high-end fitness tracker that feel light and comfortable.

Check Our Full Review >

Fitbit Versa 3

Price: $229.95 – from Amazon

Screen: AMOLED | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Yes | Battery life: 6 days | Compatibility: Android/iOS/Windows

The New Versa 3 comes packed with smart and fitness Features such as Built-in  GPS, NFC Payments, Active Zones, and PurePulse 2.0 just to name a few.

It’s a great partner for runners and outdoorsy people since you dont need to carry your phone with you for GPS mapping, you can also store music and receive notifications from your phone, You can even make calls from the watch using a Bluetooth connection to your phone.

Alexa voice control it’s also included, now you can give commands to your watch and feel in the future. You can also use the Workout Modes where you can track in real-time 20+ goal-based exercises such as run, swim, yoga just to name a few.

Best Features: The main one is Built-in GPS, the accuracy and tracking level it’s way better with it. The PurePulse 2.0 its an upgraded version of the software that now can give you a more in-depth understanding of your heart rate

Great for: Folks looking for an affordable Smartwatch.

Check Our Full Review >

Fitbit Inspire 2

Price: $99.95 – from Amazon

Screen: OLED | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Only connected | Battery life: 10 days | Compatibility: Android/iOS/Windows

The Inspire 2 is the Best Entry Level Fitness tracker from Fitbit, for less $100 you will get the full Fitness tracking experience. With High-end Features such as heart rate tracking, SmartTrack, phone notifications and calls, Sleep Score, and Active Zone Minutes,

You can also use 20+ exercise modes, such as runs, swims, bikes, and yoga classes and automatically track goals like distance, calories burned, and more. There’s also a one-year subscription to Fitbit Premium allowing you access to even more in-depth tracking.

And let’s not forget about the Battery Power!, the Inspire 2 can hold up to 10 days without a charge, and they include a fast-charging battery that can charge your tracker faster, you can get a whole day of juice in just 12 minutes.

Best Features: The 24/7 Heart rate tracker and the sleep tracker that will give you a sleep score based on your light, deep, and REM sleep are the best.BUT the nicest for us is the 10 Days of Battery life!

Great for: people that want to start the Fitness tracking experience.

Check Our Full Review >

Fitbit Charge 3


Price: $210.99 – from Amazon

Screen: Touchscreen | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Only connected | Battery life: 5/7 days | Compatibility: Android/iOS/Windows

The best Fitbit when it comes to fitness tracking is the Charge 3, that is the updated version of the biggest BestSeller on Fitbit history the Charge 2.

The Charge 3 comes with a much larger screen compared to the last few versions of the Charge series and includes a few smart functions.

With a larger display and high end features the Charge 3 is a complete package, comes with fitness features such as a heart rate tracker, guided breathing, swim tracking and improved notifications.

Just like the Versa, the Charge 3 can be submerged underwater up to 50 meters. Although this model looks more like a traditional fitness tracker.

The Charge 3 has the look of a traditional tracker with a black and white display that supports tap and swipe actions and sits in line with the device’s strap.

Best Features: The Charge 3 comes with high-end features like improved calorie burn measurements, a complete understanding of your resting heart rate plus the latest sleep tracking functions such as Automatically record time spent in Light, Deep and REM sleep stages and see activity trends, health insights, and personalized guidance.

You can also choose from 15+ exercise modes like run, bike, swim, yoga, circuit training and more. And is Swim proof and water resistant up to 50M.

Great for: Runners and Bikers that would like to get their Fitness to their next level

Check Our Full Review >

Fitbit Versa 2

Price: $178.95 – from Amazon

Screen: OLED | Heart rate tracker: Yes | Waterproof: Yes | GPS: Only connected | Battery life: 6 days | Activity tracking: Yes |Compatibility: Android/iOS/Windows

The Versa 2 is the latest smartwatch from Fitbit and includes all the amazing features that come along with the Previous Versa models but with a boost on the best features and the included Alexa and Spotify giving you a better Smart experience.

So now besides the NFC payment and Fitbit coach that where the Smartest features from the previous Versa now you can add the Alexa feature, that will allow you to talk directly to Alexa and create alerts, calendars and give commands to all your smart devices in your home.

The Female Health Tracking is also included in this model giving women the possibility to monitor their cycles and prevent symptoms such as headaches.

With a battery life that can go up to 6 days making it the best Battery included on any Fitbit Smartwatch. And of course, you can track your sleep, step count, heart rate and calories burned the Versa 2 is a great companion to track your overall health and improve it.

Best Features: The Fitbit Versa 2 is the best Smartwatch from Fitbit yet, with all the cool features that made the Versa a best seller, but including more smart features that will give you a better experience. The Alexa integration and the Spotify take the Versa 2 to a new level of smartwatch from Fitbit and having in mind that the price is still way better than any other smartwatch in the market for us the Versa 2 is one of the best in the market.

Great for: People that want a real smart experience for the best price, you will get the most powerful fitness tracking features plus a smartwatch that can deliver.

Check Our Full Review >

Fitbit Ionic

Price: $269.00 – from Amazon

Screen: LCD | Heart rate tracker: Yes | Waterproof: Yes | GPS: Yes | Battery life: 4- 5 days | Activity tracking: Yes | Processor: Dual-core 1.0GHz | Compatibility: Android/iOS/Windows

The Ionic is the first true attempt from Fitbit into the smartwatch world. With a mindset of getting your health and fitness improved, the Ionic comes full of high-end fitness features as well as smart features that will give you the best of both worlds.

With onboard music, built-in GPS, and contactless payments this smartwatch is the first real contender against the Apple watch that was dominating the smartwatch arena. Is true that on the app department the Apple ecosystem is still a tough competitor, but when it comes to fitness tracking and battery life the Ionic is the winner.

If you would like to know more about the differences check our Fitbit Ionic vs Apple Watch review.

Presenting the latest high-end features the Ionic comes with the Fitbit Coach trainer that will give you on-screen workouts, of course, comes with a heart-rate monitor but also adds built-in GPS, water-proof up to 50m, music playback support, and a bright colorful OLED display that will make your stats really clear at any moment.

Best Features: Find the guidance to reach your goals with dynamic personal coaching, built-in GPS, and continuous heart rate. Stay motivated by storing and playing 300+ songs. Plus, get convenient access to popular apps, payments on your wrist and be part of the Fitbit community.

The Ionic syncs automatically and wirelessly to computers and Phones both iOS and. Receive Call and text notifications via Bluetooth 4.0, Music control via Bluetooth Classic on Android, iOS, and Windows devices as well.

Great for: People that are looking for a fitness watch that goes the extra mile in terms of features, you’ve got the added benefits of things like Fitbit Pay, but they’re most useful as high end fitness tracker.

Check Our Full Review >

Fitbit Inspire HR

Price: $97.00 – from Amazon

Screen: Touchscreen | Heart rate tracker: Yes | Waterproof: Yes | Activity tracking: Yes | GPS: Yes, through phone | Battery life: 5 days | Compatibility: Android/iOS/Windows

The Fitbit Inspire HR is one of the newest models from the Fitbit family as a replacement from the beloved Alta 2.

The Inspire HR keeps the rounded design that comes with the Charge 3, and the similarities are even wider than that, this tracker can also be submerged in water up to 50 Mts, comes with automatic exercise recognition, and hourly reminders to move.

For those new on the fitness tracking world the Charge 3 and Inspire HR look almost identical. although the first big difference is the price that comes with the most affordable Inspire HR but has no NFC, tracking of floors climbed, or support for on-device quick replies.

Best Features: The Inspire HR has a full heart rate tracker is affordable and comes with a wide range of features such as activity tracking, sleep monitoring, and guided breathing exercises. There’s also connected GPS.

Great for: Level entry fitness enthusiast.

Fitbit Charge 2

fitbit comparison-charge

Price: $175.95- from Amazon

Screen: OLED | Heart rate tracker: Yes | Waterproof: No | GPS: Only connected | Battery life: 4- 5 days | Activity tracking: Yes | Compatibility: Android/iOS/Windows 

The Charge 2 is one of the best sellers from Fitbit and for a lot of good reasons. Having in mind the high end features that come along that will help you get your fitness to any level you want, as well help you monitor your heart rate and lose weight if you need it, and comparing with the competition there’s no way you can get all this help for the $150 price mark.

This tracker comes with the PurePulse technology that not only will provide you with information on your heart rate but will also track your beats 24/7 and gather information on every step, and exercises that you make.

Another great function that comes along with the PurePulse technology is the Snap Shot Cardio that will give you an instant picture of your fitness level and score using your user profile, heart rate, and exercise data and calculate your VO2 Max level. This is amazing for those trying to lose weight.

With the Charge 2, you can also control your anxiety or stress levels by using the guided breathing sessions that will help you get relaxed and teach you how to control and level your breathing.

Best Features: The Charge 2 is a superior heart rate and activity tracking band with interchangeable accessories. It features an OLED screen with a tap display, heart rate tracking, text-call-calendar alerts, and GPS tracking when connected to your smartphone. The Charge 2 extends fitness to other areas of your life as well, including sleep monitoring and guided breathing sessions. It’s water resistant but not swim proof!.

Great for: Runners and walkers who want a relatively slim tracking band that keeps tabs on all aspects of their fitness routine.

Check Our Full Review >

Fitbit Versa

fitbit comparison versa

Price: $199.95 – from Amazon

Screen: LCD | Heart rate tracker: Yes | Waterproof: Yes | GPS: Only connected | Battery life: 4 days | Activity tracking: Yes |Compatibility: Android/iOS/Windows

The Versa is the second smartwatch from Fitbit and includes all the amazing features that come along with the Ionic except the built-in GPS, but for this reason the price is cheaper, making it a great deal, having in mind all the other high-end features that come along.

Including smart features such as NFC payments and high-end fitness features like Fitbit Coach that will give you exercises and record your data to help you get quicker to the next level.

A cool addition on this smartwatch is the Female Health Tracking that will help women to monitor their cycles and prevent symptoms such as headaches – Read More on our Full Review

Featuring a cool and sleek design that reminds us to the Apple watch being small and rounded that would look great on any wrist.

Check our Apple Watch 3 vs Fitbit Versa

With a battery life that can go up to 4 days and the ability to track your sleep, step count, heart rate and calories burned the Versa is a great companion to track your overall health and improve it.

Best Features: The Fitbit Versa is a prettier, cheaper version of the first smartwatch Ionic. It lacks built-in GPS and NFC payments, but you’ll save $50. The Versa still boasts a comprehensive range of health-tracking features. It can automatically track your exercises such as biking, running and swimming since is waterproof up to 50 meters.

Great for: People who want a reliable smartwatch for a good price, as well as someone that would like to have the latest technology on fitness tracking and don’t mind the lack of GPS.

Fitbit Blaze

Price: $379.99 from Amazon

Screen: LCD | Heart rate tracker: Yes | Waterproof: No | GPS: Only connected | Battery life: 5 days | Activity tracking: Yes | Compatibility: Android/iOS/Windows 

The Blaze, Fitbit’s newest device, a cross between an advanced fitness tracker and a basic smartwatch.

It was the first Intent from Fitbit to go Smart. The design of the Blaze looks like a watch, but the features are much like a fitness band.

The Blaze comes with some high end features such as SmartTrack, that will help you track your exercise even if you haven’t started any function or press a button- allowing you to burn through those calories quickly and easily.

Best Features: This watch offers PurePulse heart rate readings, all-day activity tracking, sleep monitoring and workout summaries. Customers can take advantage of wireless syncing to many hundreds of devices, music control of mobile playlists, smart notifications (text, email, calendar) as well as a connected GPS system to map routes when synced with a compatible device.

Great for: Sophisticated athletes who aren’t ready to make the leap to a more advanced smartwatch. The Blaze offers just enough smart features while keeping fitness the main priority.

Check Our Full Review >

Fitbit Flex 2

Price: $279.99 from Amazon

Screen: No | Heart rate tracker: No | Waterproof: Yes | Activity tracking: Yes | GPS: Only connected | Battery life: 5 days | Compatibility: Android/iOS/Windows

The Flex 2 is the best entry-level Fitbit, easy to use and uncomplicated? It was the first Fitbit able to be submerged underwater. You can swim with it and go as deep as 50 meters underwater with no problem you can also keep an eye on how well your dips in the pool are going. 

On top of that, it comes with all the other basic tracking features you’d expect plus a slim and light design too.

It’s a bit cheaper than the Fitbit Charge 2 as well, so it may be the perfect Fitbit tracker for you.

Best Features: The Flex 2’s super-small tracker is housed within Fitbit’s slimmest wristband thus far, but you can remove it and place it in other bands or pendants depending on your preference. The Flex 2 offers text notifications and an LED progress display and it’s also swim-proof and customizable. 

Great for: Swimmers who want a tracker that can keep pace in the pool. Priced under $100, the Flex 2 remains on the affordable end of Fitbit’s spectrum while maintaining coveted features like text alerts and interchangeable accessories.

Check Our Full Review >

Fitbit Charge HR

Price: $91.02 from Amazon

Screen: No | Heart rate tracker: Yes | Waterproof: No | Activity tracking: Yes | GPS: Only connected | Battery life: 5 days | Compatibility: Android/iOS/Windows.

The Charge HR is similar to the Fitbit Charge but also includes continuous heart rate monitoring.

It’s a good level entry tracker for those that would like to keep track of their Heart rate

Similar to the Flex 2 is great for people that would like to start into the Fitbit world but are not familiar with high-end trackers or don’t want to spend too much to check if is a good fit, in this case, is good for tracking your heart rate, instead of the Flex 2 that is recommendable for swimming.

Best Features: Like the Charge, it features caller ID, exercise tracking, wireless syncing, a water-resistant design, and an OLED display.

Great for: Serious athletes who want a reliable and multifaceted fitness assistant, not more than $100.

Check Our Full Review >

Fitbit Comparison 2021 – Features

When we start our Fitbit Comparison we realized that all the Fitbit can monitor calories, distance, steps, and sleep, however, they are different in a few individual features, which we are going to focus on here.

Every gadget comes with an accelerometer that measures motion patterns to establish your calories burned, distance traveled, as well as the steps taken.

But this is a Comparison! Below we give you the difference between features and functions so you can understand on a deeper level which tracker is the best for your needs.

Go to: Best Fitbit for Men  – Best Fitbit for Women


In terms of appearance, it is more than simply preference, as you need to think about comfort and flexibility as well.

Having in mind that the best way to track your stats properly is to wear the tracker 24/7, you would need a tracker that will feel comfortable all the time, and at the same time look adequate for different occasions. Like going to the gym, going to work, going for a fancy dinner, or going out at night.

So the design plays a big part in your decision, then you have to bear in mind that you want to have it at night while your sleep, so you can track your sleep patterns, so it needs to be comfortable also for the night time, and in the best-case scenario you want to wear it in the pool or when you take a shower, so is better if the tracker its also waterproof.

So now you may be wondering ok I’m done with this! How can I find a tracker that fits all these different needs?

No worries!

That’s why we have this section on the review.

Let’s start with the smaller and best fits for all wrists the slim Inspire Series (HR, 2), Alta, Flex 2.These trackers have a more discreet design that sits comfortably on your wrist and doesn’t attract much attention.

These trackers will suit both a discreet dinner party and the office without looking too sporty

Then you have the Medium Size Fitbits Where you will find the Charge Series including the latest Charge 4 Plus the New Ace 3 (for kids). These trackers are also slim but bigger than the previous ones, although they are way smaller compared with the rest of the Fitness Trackers that you can find in the market.

So for us the Charge 3 and 4 are the most versatile tracker from the bunch, they look good in most situations, so you don’t need to worry about looks at any time, in terms of features they are both great although the Charge 4 has the edge with some extra features and cooler design.

fitbit-comparison-design-usafitnesstracker.comOne thing to have in mind is that you can change the bands, and depending on the models you will have a wide range of bands to choose from and change the outlook of your tracker, so in case you want to combine your watch with your clothes or shoes you can.

On the other hand, the demand for fitness trackers is focused on higher performance and more accurate stats so you can’t put all this high-end technology in a small or sleek body.

That’s when the high-end trackers such as the Versa 3 Sense and Ionic came in handy.

They are the Smartwatches from the Fitbit family and they look good and appeal to different types of people, The Ionic has a more sharp design while the Versa and Sense are more rounded for those that didn’t like the Ionic design.

Then you also have the Blaze design that for us it looks great but in terms of features lacks compared with the Versa and Ionic and the price doesn’t differ that much to be fair.


When it comes to display or screen there are differences as well, we can divide them into 3 groups:

  1. No screen
  2. OLED 
  3. Touchscreen

No Screen

So the first group is the No Screen that as you can imagine had no screen, but anyways they have lights that will inform you in case something important happens such as phone notifications, or milestones or whatever you program the watch to keep track on.

The only trackers that do not have a screen are the Flex and Flex 2, the good thing is that the Flex 2 is waterproof up to 50 meters so you can get a cheap tracker that can be submerged underwater


Second, we have the trackers that comes with an OLED display, this is the case of the majority of the trackers from Fitbit, these trackers will display your stats bud depending on the size of the screen or the features that come along with the tracker you will have a different experience.

Trackers such as the Alta, Alta HR or Charge HR will display some stats but their screen is the smallest from the bunch so you will have to choose from the APP which stat you will prefer to get at a glance.

Then you have tracker such as the Inspire, Inspire HR, Charge 2, and Fitbit One, that will have a medium size screen where you will get extra stats and in some cases, you can even receive text notifications and reply right from your wrist.

The display will show you stats such as: Time; Steps; Heart Rate; Calories burned; Notifications such as Caller ID and texts; Exercise modes; Sleep; and Settings.

And last but not least you will have the trackers that come with a big OLED screen, such as the Blaze, Zip, and Surge, that will have an extra screen. Although even a wider screen when it comes to stats the big screen tracker can show as many stats as the medium OLED trackers, but with bigger numbers, and some extra room for maybe one extra notification.


Now we go with the best displays, the touchscreen ones, that can show your stats but you can also make changes right from the screen of your watch, with the latest technology you will have a complete experience.

The Charge 4 comes with an OLED touchscreen that can show you Time; Steps; Heart Rate; Distance; Calories burned; Floors climbed; Very active minutes; Caller ID; Text Notification; and Alarm.

Then you have the Color touchscreen display, featured in The Versa Sense and Ionic, which is even better for watching stats and messages on your display. It will give you the most “at a glance” Data and it’s in Full Color, and you can make calls, send messages, choose from different clock faces, and watch (and listen to) guided exercise workout training sessions.


Most Fitbit trackers can be connected with your phone GPS via Bluetooth whats is commonly known as Connected GPS

The Fitbit Surge features 8 sensors and it was the first tracker that came with built-in GPS, meaning that you can use GPS tracking without having to use a smartphone to be linked. 

Now you have Built-In GPS also on the Ionic, Versa 2 and 3 , Charge 4, and Sense

You can easily track distance, pace and elevation climbed, and review routes and split times. This defeats the Apple Watch, which utilizes a phone for GPS. The advantage of having a GPS on your device is that you can track exactly where and for how long you run and walk. In addition, it makes all the stats far more accurate.

Heart rate monitor

Most of the latest trackers come with Heart rate monitor, the Inspire HR, Charge 3 Ionic, and Versa. Then from the Fitbit bunch, you also have the Alta HR, Charge 2, Blaze, and Surge that can also monitor your heart rate from your wrist. They use Fitbit’s PurePulse technology that gives continuous, automatic, wrist-based heart rate, plus simplified heart-rate zones.

The Fitbit Surge is a perfect selection in case you workout frequently and practices different sports, It also comes with GPS to work together with the heart rate monitor. As we said before GPS increases accuracy, and with the Surge, you can also change the heart rate monitor depending on your specific activities.

The Charge HR and Blaze do not have built-in GPS, but they both have top-notch heart monitoring that tracks you every second of the day and provides a snapshot of your cardiovascular fitness. Based on estimated VO2 Max – calculated by your user profile, heart rate, and exercise data – you can see how your fitness level relates to others of the same age and gender, and get guidance on how to improve over time

A cool addition to the Charge 4, Sense, Versa 3, and Ionic is the Sp02 sensor that can also monitor the amount of oxygen in the blood that is a really important health indicator.

Best Waterproof Fitbits for Swimming

fitbit-comparison-which-fitbit-is-swimm-proof-2018-usafitnesstracker.comIn the beginning, the only Fitbit that you can swim with was the Flex 2, But since 2018 the Ionic and Versa models appear on the market to help you track your swimming.

The latest models are Smartwatches so they can also identify your strokes and track all your data from each swimming lap. Helping you to improve not only your strokes but also your resistance.

Now in 2021, you have some extra models to choose from as well, The Inspire series is also swim-proof up to 50 meters, and the Charge 3 as well.

Unfortunately not one of the other Fitbit activity trackers can keep track of your swimming. And not only one of the other Fitbits are pleased being wet. The Fitbit One, Zip, Alta, Charge2, Blaze, and Surge are splash resistant, but really should not be immersed for more than one meter.

The Sense. Charge 4, Flex 2, Ionic, and Versa 3 are waterproof up to 50 meters, which happens to be rated as 5 ATM (Atmospheres).

The Alta, Charge 2, Charge HR, and Blaze are waterproof to just one ATM, so in theory, could be immersed as much as 10 meters (33ft). Having said that, watch experts suggest that a gadget with this particular level of resistance is protected from accidental contact with water; such as splashes, sweating or unintentional immersion; and state that it shouldn’t be exposed to any water pressure.

The Fitbit Surge is water-resistant to 5 ATM, which indicates it’s wearable around home kitchen sinks when actively playing sports activities and even though swimming in shallow water. Specialists advise you to not use it while showering, scuba diving, or snorkeling.

Check our full review for the Best Waterproof Fitbits for swimming.


Battery lifespan can be quite important, depending on the use that you will give to the tracker, is not the same to have it for counting your steps, as if you should want the tracker to help you on outdoor adventures.

With all the different models the Charge 4. Alta Hr and Flex will give you by far the most for the money, with Seven days of battery lifespan. Having said that, the Zip contains an exchangeable battery that lasts 4-6 months, a fascinating solution if you do not want the inconvenience of charging your device.

The Luxe, Blaze, Charge HR, Charge 2, Charge 3, Inspire, and Flex 2 all have 5 days of battery life.

The Versa 2, 3, and the Sense last up to 6 days.

And last but not least the Inspire 2 is another powerhouse when it comes to battery juice, it can last up to 10 days with out the need of a charge.

Which Fitbit has the best battery life?

The Zip is simply the most effective for battery lifespan but you will have to get a new battery two to three times per year. The 3V coin (CR 2025) battery is affordable, although – you can get a pack of 5 for less than US$3. The other models have rechargeable batteries.

You can Also Check Our Fitbit Battery Life Review

Here is roughly the span of time each and every Fitbit will last between charges:


All the models except the Zip also contain a vibration motor, which allows it to vibrate when alarms are set to go off.

Automatic Sports Recognition

Most trackers use the multi-sport exercise tracking feature like the Inspire HR, Charge 2 and 3, Versa, Ionic, Alta HR, and Blaze. 

They will know if you are riding a bike, running, hiking, or taking part in sports activities such as football, tennis, and basketball. The Fitbits will also identify cardio exercises like Zumba, cardio-kickboxing, and dance routines, and record the workout in the Fitbit app together with a workout summary.

By using the SmartTrack feature they will automatically recognize and record your workouts and captures all of the stats: how long you were active, calories burned, and heart rate zones.

Text Messages and Caller ID

The Alta, Alta HR, Charge 2, Blaze, and Surge will all show Caller ID when linked to a smartphone. All the wristbands display text notifications on the screen, and the Blaze and Surge allow you to control your music from the touchscreen display.

All the latest Tracker such as the Charge 3 Ionic and Versa can receive calls from your watch. As well as update or control your music from the touchscreen display.

Move Reminder

This is available on all the Fitbit trackers. It encourages you to meet a mini-step goal of 250 steps each hour (approximately 2-3 minutes of walking). These prompts can be personalized to your schedule; for example, they can be put on “Do Not Disturb” during long meetings or appointments.

Sleep tracking

Every one of the Fitbit’s, except for the Zip, tracks your sleep, too. They calculate the time you spend asleep and check the quality of sleep – observing if you are stressed or get out of bed through the night. 

Fitbit’s Sleep Stages measurements are available in the Inspire HR, Charge 3, Versa, Ionic Alta HR, Charge 2, and Blaze will use a heart-rate variation to calculate how much time you spend in Light, Deep, and REM sleep, together with time awake every single night, to improve and comprehend your sleep quality.

Relax Guided Breathing

The Inspire HR, Charge 3, Versa, Ionic, Charge 2, and the Blaze offer the Relax Guided Breathing sessions feature that can help calm your body and mind through two to five-minute sessions personalized to your breathing rate. The advantage of guided breathing practice is that they are meant to reduce anxiety and stress, along with lower the blood pressure level.

Floors climbed

Most Fitbits such as the Versa, Ionic, One, all the Charge models, plus the Blaze and Surge boast an altimeter that measures stairs climbed. On the other hand the Alta, Ace 2, Inspire, and Versa Lite do not include the altimeter.

Female Health Tracking

All the newest trackers except the Ace 2 offer the Female Health Tracking, a cool feature that will help women understand their body by using the tracker with the Fitbit app to follow their cycle, record symptoms, and more and once the data start to be collected the App will be able to predict symptoms such as headaches, it will also give you data on where is your cycle, days that you may be more fertile or when you are going to have your next period

Fitbit App

Yes. All of them utilize the exact same iPhone, Android, and Windows Phone App. Also, you can see the data on Fitbit’s website and synchronize a tracker with a laptop or PC utilizing the included Bluetooth USB dongle.

The App looks fantastic and displays your complete daily and historical statistics in beautiful graphs that expand in landscape orientation and also display in portrait view.

The desktop dashboard is another visually appealing and educational spot to keep track of your exercise and fitness statistics.

fitbit-app-best-fitbit-comparison-2018-usafitnesstracker.comAnd as a motivation you are able to link with friends, family members and co-workers to compete against each other on the leaderboard, become involved in daily or weekly Challenges, and earn badges based on completing goals, and historical milestones. These features of the Fitbit system is what really makes the difference between Fitbits and any other tracker.

What Fitbit colors are available?

  • Fitbit Versa 3 – Black, Blue, Pink
  • Fitbit Charge 4 – Black, Granite, Rosewood
  • Fitbit Sense – Carbon/Graphite, White/Gold
  • Fitbit Luxe – Lunar white, black, orchid, special edition gold-on-gold
  • Fitbit Inspire 2 -Black, Rose, White
  • Fitbit Versa 2 – Black, Bordeaux, Rose, Grey
  • Fitbit Charge 3 – Graphite/Black, Graphite/White, Lavender
  • Fitbit Ionic – Blue-gray, Charcoal, Slate Blue
  • Fitbit Inspire HR – Black, White, Lilac
  • Fitbit Charge 2 – Black, Blue, Plum
  • Fitbit Versa – Black, Charcoal, Grey
  • Fitbit Alta HR – Black, Blue/Gray, Coral, Fuchsia, Pink
  • Fitbit Blaze – Black, Blue, Pink, Plum
  • Fitbit Flex 2 – Black, Violet, Pink, Red, Blue
  • Fitbit Zip – Charcoal, Blue
  • Fitbit One – Blue, Burgundy

The Fitbit Surge is available in three colors: Black, Blue, and Tangerine. But it’s no longer sold on the Fitbit store, only on Amazon and other online sellers.

Best Fitbit for Men

We have a full review of the different Fitbits for men depending on Smart features, best for running, for sport, the most affordable, and more. So if you would like to check the full review click the link below:

Anyways we choose our Top Picks for the Best Fitbit for men. In terms of Smart Features the Ionic is today’s most full Smartwatch from Fitbit, and When it comes to high-end tracking for running and Sports the Charge 3 is today’s most versatile Fitbit watch.

Fitbit Ionic

The Ionic is today the Best High-end fitness tracker from Fitbit, as well as the Smartest watch from the company.

With the possibility of NFC payments that will allow you to pay right from your wrist, The Ionic comes with functions such as Fitbit coach that will provide you with guided coaching for a wide variety of sports and exercises.

It is also one of the only trackers that come with built-in GPS giving you the most accurate data possible, so is great for professional athletes as well.

Check Our Full Review>

Fitbit Charge 4

The Charge 4 is today’s most powerful fitness tracker, with all the features that made the Charge 3 a Best Seller plus some great additions such as a cooler design, 15+ exercise modes to choose from like yoga, bike, swim, just to name a few. It’s also swim-proof up to 50 meters and comes with a larger display to show you extra notifications in a touchscreen display.

Is also cheap having in mind all the features that come along. Plus has a Heart rate monitor, guided breathing, swim tracking, and improved notifications.

Check Our Full Review>

Best Fitbit for Women

We also have a full review about which Fitbit is the Best for Women, but at the same time, we choose our top picks.

You can check the full review on the link below:

Fitbit Inspire HR

The Inspire HR is our top choice since is today’s most affordable tracker that comes with Heart rate tracking plus the female health tracking feature making it a top choice for women.

It also a slim watch that looks great and will feel comfortable on a woman’s wrist.

Is also one of the latest trackers from Fitbit so it comes with all the high-end features to track your exercises plus Automatic workout detection and 15+ Goal-Based Exercise Modes.

Versa 3

The Versa is the best Smartwatch for women, with all the features that make the Versa 2 a full smartwatch but with the addition of some smart features packed on the same design.

Some of the new additions are AMOLED Screen, voice assistant (Alexa), and a better battery life.

The Versa comes in 3 different editions the Lite Version that its the cheapest of the Versa bunch and includes all the high-end features such as female health tracking but it doesn’t include some smart features such as NFC payments, then you have the regular Versa that is the one that we were talking about, and last but not least you have the Versa Special edition, that includes all the features plus a cooler design, NFC payments and some extra features.

Check Our Full Review for more information about the Versa

What Size Fitbit Should Women Get?

Fitbits come in three standard sizes small, large, and X Large. It’s kind of weird that there’s not a medium or regular size. Fitbit breaks down wrist sizes based on their circumferences (the distance around the outside of your wrist) and ties those with the different product sizes. This makes it easy to buy a Fitbit and know that it will fit your wrist properly, even if you can’t try it on.


Small 5.5″–6.7″ 140 mm–170 mm

Large 6.7″–8.1″ 170 mm–206 mm

X Large 8.1″–9.3″ 206 mm–236 mm

Check here where you can find a band to print and use on your wrist to know the perfect size for your wrist.

What is a Fitbit?

A Fitbit is not just a fitness tracker or a smartwatch is much more than that. You can think that there’s a lot of brands and models around so what makes a difference between Fitbit and the competition?.

The reason to buy a Fitbit is not for the gadget. It is really for the software. The Fitbit app for Android and iOS has become the simplest to use. It has the biggest social base, so you’re able to compete with family and friends, and syncs with a wide range of other services. The app also supports numerous trackers and will automatically identify whenever you change from one device to a different one.

The best thing is that you are able to test-drive the Fitbit app without the need of buying any new hardware. The free app can be downloaded on your iPhone or Android phone and can track steps, distance as well calories burned.

If you want to go ahead and take the Fitbit jump, there is only one problem: deciding on one of the 8 versions that the company offers (which includes some which are years old). It can be confusing at the beginning, but we have created this convenient cheat sheet to help you.

Fitbit Smartwatches vs Fitness Trackers

So you hear a lot about the different Fitbit models but which ones are smart and what is the difference with the fitness trackers.

So to play it simply the main differences are that the smartwatches can perform smart functions such as NFC payment (  you can pay right from your watch) as well advance health tracking functions such as the female health tracking.

The Smartwatches can be submerged underwater and track your swimming laps, there are a few apps that are only available for the Smartwatches.

But the Fitness trackers are not behind, don’t you think that simply because the smartwatches can track high-end exercises the Fitness trackers cant.

One of the most advanced fitness trackers on today’s market is the Fitbit Charge 3, which comes with all the features that made the Charge 2 the best seller on Fitbit history but it also adds cool functionalities such as the ability to choose from 15+ exercise modes like run, bike, swim, yoga just to name a few, as well it can track your Deep and REM sleep stages and see activity trends, health insights, and personalized guidance.

Fitbit Benefits

fitbit comparison 2018-usafitnesstracker.com_

Regardless of what fitness tracker you decide on you’ll get your money’s truly worth. These trackers will vary in terms of the bells and whistles but they all give you a precise readout of your day to day activities. It all comes down to who you are and who you are shopping for: moms will love the Charge simply because they could be reached rapidly if their kids will need them, while entrepreneurs will enjoy the Surge since they can look at work e-mail or send a fast text message while working out. Every one of the gadgets has these key benefits:

  • Modern Design Each and every model were created to look sharp and sleek. Because of top-notch materials, you will not even notice you’re using one as they are so light and portable.
  • Develop a Routine They keep you motivated to workout and shape up with their fun apps and enhancements that will get you excited about fitness. Also, the tracking ability allows you to personalize your exercise so you take action the right way- no longer guessing if you are getting rid of calories, now you know.
  • Monitor your health They make you aware of how physically active you’re (or are not!), to help you boost your entire overall health.
  • Superb Efficiency: These gadgets go well beyond the typical calorie/step-counters that are available on the market. There are encourages when you have been sitting or idle for a long time, Gps navigation to plan and keep track of your runs, monitor your heart rate when you exercise, and a lot more. As an added bonus, battery lifespan is about 1 week or longer, so you aren’t hassled by having to charge it on a regular basis.
  • Revolutionary Technology: With 8 built-in sensors, strap-free heart tracking, split-screen comparisons and smartwatch features this gadget gets the most recent, innovative technology to help make daily life simpler.
  • Price Besides all these fantastic features, the Fitbit is fairly priced: no matter if you wish to spend a little or a lot, there is a Fitbit for everybody on your gift list.


After this Full Fitbit Comparison, buying the right tracker for you is going to be a breeze. You will have no challenge finding the right Fitbit fitness tracker since you now understand what every one of them can do.

From the different Fitbit models, the Charge 4, Luxe and Sense emerged as the top choices among buyers, for several good reasons.

The Ionic is the Best when it comes to Smartwatch since comes with High-end fitness features as well Smart features such as NFC payments and Built-in GPS, it could be ou top pick but the design is not for everybody.

For kids, the only tracker is the Ace series, which we didn’t cover in this review but you can learn all about it HERE.

As we said at the beginning the Cheapest Fitbit is the regular Inspire but it lacks some features such as an altimeter to measure floors climbed, multi-sport functions, heart rate, and GPS tracking. So for a few extra bucks, you can get the Inspire HR that includes swim-tracking, heart-rate, Cardio Fitness, and sleep analysis.

One thing is for Sure every person who has ever used a Fitbit says the same thing: there’s no greater exercise tracker available on the market.

Fitbit simply cannot be beaten in price, packaging, or use. Regardless of whether you are new to the health club scene or a veteran you are going to love Fitbit and all it has to offer.

You can always come back and check this Fitbit Review and Fitbit comparison table whenever you need to get a Fitbit for yourself or your loved ones.