Fitbit has been around for years, sitting at the top of its activity tracking class smugly watching as its competitors hope to raise the same sort of brand awareness. For many, a fitness band is simply called "a fitbit", such has the impact been of this company.

Chances are if you are reading this feature, you too have heard of it. The problem you have probably since found however, is deciding which of the Fitbit activity tracking devices is the right one for you.

We have broken each of the Fitbit trackers down into how much each costs, what features each offers and why you might consider buying each one. This feature is all about helping you work out which Fitbit will suit you and your lifestyle best.

Quick summary

The Fitbit Zip is the cheapest Fitbit and it allows for simple, subtle tracking.

The Fitbit Flex 2 is a simple, stylish activity tracker that will do the activity basics, plus sleep tracking and smartphone notifications (sort of). It is easy and comfortable to wear and a little more on trend than clip-on devices currently are, which might be a reason to select it over the One. It is also one of only two waterproof Fitbit trackers.

The Fitbit Alta is very similar to the Flex in terms of functionality but it is a little more substantial thanks to its display. It isn't waterproof, but it does smartphone notifications in a more useful way to the Flex 2, offering caller ID, the ability to read the text and calendar alerts.

The Fitbit Alta HR has a very similar design to the standard Alta but it adds heart rate monitoring, a different clasp and more advanced sleep data, as well as a slightly extended battery life. Other functions are the same as the Alta, but it is a little more expensive due to the extra features.

The Fitbit Charge 2 offers more advanced activity tracking again thanks to the continuous heart rate monitoring, along with VO2 Max, Guided Breathing, and Connected GPS. It is a little more expensive but its the cheapest way to get access to some of Fitbit's more advanced features.

The Fitbit Charge 3 is the successor to the Charge 2. It offers everything the Charge 2 does, but it adds water resistance and swim tracking, Goal-Based exercise, Run Detect with auto stop and more advanced smartphone notifications, like Quick Replies. There is also a Special Edition model with NFC for Fitbit Pay. 

The Fitbit Versa is sits between the Blaze and the Ionic in terms of functions. It offers many of the fitness features though no GPS, and it has payments, smartphone notifications, apps and phone-free music.

The Fitbit Ionic is the most expensive Fitbit device, as well as being the most feature rich. It lands more in smartwatch territory than other Fitbit devices, bringing built-in GPS, water resistance up to 50-metres, mobile payments and smartphone notifications, as well as all the features found on other Fitbit devices.

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Fitbit Zip



  • What it tracks: Steps, distance, calories, active minutes
  • Type: Clip-on
  • Features: LCD display, clock
  • Battery: 4 to 6 months
  • Price: £49.99

The Fitbit Zip is the cheapest activity tracker available within Fitbit's portfolio and it allows you to monitor basic activity discreetly. It is a clip-based device that can be worn on a belt, pocket or a bra.

The Zip has an LCD display for easy access to stats without the app and its replaceable coin battery should last between four and six months. Through the Fitbit app, Zip users will be able to see their progress, complete challenges with friends, log food, record workouts and earn badges.

The Fitbit Zip comes in charcoal, lime, midnight blue and magenta colour options.

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Fitbit Flex 2



  • What it tracks: Steps, distance, calories, active minutes, sleep
  • Type: Wrist-worn
  • Features: Five LED lights, text and call notifications, special accessories, waterproof, silent alarms
  • Battery: Up to 5 days
  • Price: £69.99

The Fitbit Flex 2 replaces the original Flex and offers tracking features. There are five LED lights, meaning you'll need to use the app for progress details, while the design is the iconic wrist-worn band.

As there is no display, there is no clock feature, but the Flex 2 does offer text and call notifications in the form of colour-coded LED lights. Battery life is up to 5 days.

The Flex 2's tracker is removable so you can stick with the standard rubber band it comes with, or you can buy special accessories. There is are bracelets in gold, silver or rose gold options and a necklace in gold or silver for those who want to increase their fashion status along with their step count. For those happy with the rubber band, it comes in four colours including black, navy, lavender and magenta. 

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Fitbit Alta



  • What it tracks: Steps, distance, calories, active minutes, sleep
  • Type: Wrist-worn
  • Features: OLED display, clock, smartphone notifications, interchangeable bands, silent alarms
  • Battery: Up to 5 days
  • Price: From £99.99

The Fitbit Alta offers many of the same features as the Flex 2, meaning no elevation or heart rate data, though it does smartphone notifications in a slightly more useful way compared to the Flex 2.

The Alta is slim and sits in line with the Flex in terms of size but the display allows you to see your progress and alerts, including text notifications, incoming caller ID and calendar alerts. The same app functions apply as the Flex 2, along with the same battery life, which stands at 5 days but the Alta is not waterproof.

The Fitbit Alta comes in four standard colours comprising black, blue, teal and plum, but there are also two leather band options for an extra £50 each or a metal bracelet for £80 extra.

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Fitbit Alta HR



  • What it tracks: Steps, distance, calories, active minutes, heart rate, sleep
  • Type: Wrist-worn
  • Features: OLED display, clock, smartphone notifications, interchangeable bands, silent alarms
  • Battery: Up to 7 days
  • Price: From £129.99

The Fitbit Alta HR features a very similar design to the Alta, meaning a slim and sleek device with a display for smartphone notifications and progress.

It adds heart rate tracking though, along with a colour-matched buckle for a more secure fastening and its battery life has been extended to 7 days, which is more than the Flex 2, Alta or Charge 2. The Alta HR also offers more advanced sleep tracking data but it still lacks elevation data and waterproofing.

The Fitbit Alta HR comes in four standard colours comprising black, fuchsia, coral and blue grey, as well as two special edition models for £20 extra than the standard model. There are also three Luxe leather bands available at £40 each and a metal bracelet like the Alta for £70.

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Fitbit Charge 2



  • What it tracks: Steps, distance, calories, active minutes, sleep, heart rate, elevation, VO2 Max
  • Type: Wrist-worn
  • Features: OLED display, clock, smartphone notifications, interchangeable bands, Connected GPS, multi-sport tracking, automatic exercise recognition, silent alarms
  • Battery: Up to 5 days
  • Price: From £139.99

The Fitbit Charge 2 replaces the Charge and Charge HR in one device. It is slightly larger than the Alta, Alta HR and Flex 2 but it adds several extra features, including Cardio Fitness Level (essentially VO2 Max), which gives you a personalised fitness score over time, and Guided Breathing, which offers personalised breathing sessions based on your heart rate.

There is also Connected GPS on board the Charge 2 and battery life is sits at up to 5 days, so around the same as the Flex 2 and Alta. It is sweat, rain and splash proof like the Alta and Alta HR, but not waterproof like the Flex 2. App functions are the same as the other devices but unlike the Flex 2 and standard Alta, you'll get the added bonus of being able to monitor your heart rate data, as well as see more detailed analysis of workouts.

The Fitbit Charge 2 comes in black and silver, plum and silver, blue and silver, and teal and silver. There are also two special edition models and a number straps that can be bought separately for a different look as the Charge 2 offers interchangeable straps, like the Alta and Alta HR. 

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Fitbit Charge 3


Available October 2018


What it tracks: Steps, distance, calories, active minutes, sleep, heart rate, elevation, VO2 Max, SPO2
Type: Wrist-worn
Features: OLED touchscreen display, clock, extended smartphone notifications, interchangeable bands, Connected GPS, waterproofing with swim tracking, multi-sport tracking, automatic exercise recognition, guided breathing, goal-based exercise mode, silent alarms, interchangeable, NFC for mobile payments (selected models)
Battery: Up to 7 days
Price: From £129.99 to £149.99

The Fitbit Charge 3 is the successor to the Charge 2, refining and streamlining its design, whilst also adding waterproofing up to 50-metres and swim tracking, like the Flex 2. There is a 40 per cent larger and brighter OLED display compared to the Charge 2 and it is now touch-enabled, rather than just tap-enabled, allowing users to swipe through all the metrics they'd find in the Fitbit app, including hydration.

All of the Charge 2's features are on board, including Connected GPS and continuous heart rate monitoring, but you'll also get a few extras. Goal-Based exercise modes are new to the Charge 3, allowing you to set a specific calories burned, distance or duration goal for more than 15 exercises, and Run Detect with auto stop is present too, meaning runners can stop at lights without manually hitting pause on their workout.

Smartphone notifications are also more advanced than the Charge 2 with Quick Replies coming soon for Android users, some app notifications like Facebook and Uber and the ability to answer and reject calls.

The Charge 3 is available in graphite with a black strap or rose gold with a blue grey strap, but there are also two Special Edition models that are NFC-enabled, offering Fitbit Pay. The Special Edition models have the same case options but the graphite has a white perforated sports strap, while the rose gold has a purple fabric strap.

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Fitbit Versa



  • What it tracks: Steps, calories, active minutes, sleep, heart rate, elevation, female health
  • Type: Wrist-worn
  • Features: Coloured LCD display, clock, extended smartphone notifications, music control and storage, waterproofing with swim tracking, multi-sport tracking, automatic exercise recognition, on-screen workouts, personal coaching, guided breathing, NFC for mobile payments, silent alarms, interchangeable straps
  • Battery: Up to 4 days
  • Price: From £199.99

The Fitbit Versa is one of the newest Fitbit device, softening the design of the Blaze or the Ionic for something that's more lifestyle and less obviously sporty. It offers a metal body waterproofed to 50m with rounded corners and a domed back, being the slimmest and lightest watch that Fitbit offers. It has interchangeable straps and comes in a range of different colours.

The functions support all of Fitbit's exercise functions with and optical heart rate scanner on the rear and motion detection to capture your steps and activities, but there's no GPS for accurate speed and distance capture. There is a full range of specific sport tracking support as well as guided coaching and support for apps to expand the feature set further. The Versa also introduces female health tracking.

There's support for smartphone notifications, with quick reply support for Android. Offline music is supported when connected to Bluetooth headphones and the inclusion of NFC means you'll be able to make mobile payments once you register a compatible bank card.

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Fitbit Ionic



  • What it tracks: Steps, distance, calories, active minutes, sleep, heart rate, elevation, VO2 Max
  • Type: Wrist-worn
  • Features: Coloured OLED display, clock, extended smartphone notifications, music control and storage, GPS, waterproofing with swim tracking, multi-sport tracking, automatic exercise recognition, on-screen workouts, personal coaching, guided breathing, NFC for mobile payments, silent alarms, interchangeable straps
  • Battery: Up to 4 days
  • Price: From £299.99

The Fitbit Ionic is the company's answer to a proper smartwatch and it is the most expensive Fitbit available, but it is also the most feature rich, offering all the features available on the likes of both the Charge 2 and Blaze, while adding plenty of extras on top of these devices like NFC for mobile payments, waterproofing with real-time swim tracking and improved GPS over the Surge.

It comes with Fitbit Coach, a new personal coaching app, as well as partner apps like Strava and like the Blaze, it offers on-screen workouts, though the Ionic takes things one step further in that they will be more personalised. The Ionic also has interchangeable straps, a unibody made from aerospace aluminium for a premium look and improved heart rate tracking over other Fitbit devices.

The Fitbit Ionic is said to have a 4-day battery life and it offers extended smartphone notifications to include apps like Facebook, WhatsApp and Gmail. The Ionic is available in three colours, each of which will be compatible with the two leather straps and three sports bands available separately.