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Fitbit Flex 2

Fitbit Flex 2
alaScore 94

1411 reviews

Aug, 2018

alaTest has collected and analyzed 1411 reviews of Fitbit Flex 2. The average rating for this product is 4.4/5, compared to an average rating of 4.2/5 for other products in the same category for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Fitbit Flex 2 is awarded an overall alaScore™ of 94/100 = Excellent quality.

Review analysis

(Based on 1411 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 10 of 1025 Show Reviews: in English | in other languages (386)

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Expert review by : Abigail Bassett (

Fitbit Flex 2 review


Fitbit Flex 2: The waterproof tracker is smaller, lighter, and better looking than the old Flex but it's still got a few issues.

Nov, 2016

Expert review by : Timothy Torres (

Fitbit Flex 2


With the Flex 2, Fitbit upgrades its original entry-level fitness tracker with a fully waterproof design, color LEDs, automatic activity tracking, and a variety of ways to wear it.

Waterproof. LEDs indicate notifications. Interchangeable band, bangle, and pendant accessories. Comfortable, slim design. Accurate measurements.

No display. Lacks manual activity tracking.

Conclusions When it comes to $99 fitness trackers, it comes down to the Fitbit Flex 2 and the Misfit Ray. They each deliver accurate measurements, notifications from your phone, silent alarms, and they're both waterproof. The Flex 2 has more indicator...

Sep, 2016

Expert review by (

Fitbit Flex 2 black


But in exchange for that long-overdue swim-friendliness, other features are lost. There's no heart rate tracking, and it doesn't have a display. Are you OK with that compromise?

The Flex 2 is slim and swim-proof, can track basic fitness data and supports a variety of accessories, including pendants.

It lacks a display and the more advanced features of other Fitbit trackers. Lacks heart rate tracking. The LED lights can be confusing; battery life should be better.

The Fitbit Flex 2 doesn't have all of the bells and whistles of other trackers, but it's finally swim-proof, and it does the basics and it does them well.

Sep, 2016

Expert review by : Adam Sinicki (

Fitbit Flex 2 review


The Fitbit Flex 2 is not for athletes or serious gym rats. For those who are casually interested in getting a bit fitter, though, the versatile design, great app and excellent auto-detect feature make it a solid choice.

Excellent auto-detection ; Lightweight and highly versatile ; Brilliant app ; Waterproof

Average battery life ; No heart rate monitor or GPS ; LED notifications are a non-event ; No weightlifting mode

Dec, 2016

Expert review by : Jessica Vomiero (

Fitbit Flex 2 review: The barebones tracker for the fitness rookie


If you're new to the world of connected health, the Fitbit Flex 2 might be just the lightweight fitness tracker to get you started.

Small and easy to wear ; Feature-packed ; Five-light indicator system tracks progress well ; waterproof ; removable, comes with accessories

Short Battery Life ; Long Charging time ; Five-light indicator system can be confusing

Nov, 2016

Expert review by : Althea Chang (

Fitbit Flex 2 Review: Best Budget Fitness Tracker


The $99 Fitbit Flex 2 is a great fit for those who want to track their steps, exercise and sleep without wearing a bulky device or plasticky band. Its water resistance means you don't have to take it off every day, and stylish accessories make this...

Automatic activity tracking ; Slim and lightweight ; Water-resistant

Fewer activities tracked when worn around the neck ; Call and text notifications could be glitchy with Android devices

If you want to track your activities with an inexpensive fitness tracker that doesn't look like one, you'll appreciate the $99 Fitbit Flex 2.

Oct, 2016

Expert review by : Richard Easton (

Fitbit Flex 2


The original Fitbit Flex sat at the entry-level end of Fitbit's product range. It was a relatively discreet tracker that did the basics of activity and sleep tracking, but offered little beyond that.

The Fitbit Flex 2 is a solid upgrade over the original, but it’s still a rather basic activity tracker for the money.

Jul, 2017

Expert review by : Britta O'Boyle (

Fitbit Flex 2 review: Simple, stylish tracking


The Flex 2 is the sequel to the Fitbit's original all-day activity-tracker . It brings together fitness-tracking and sleep-tracking into a simple yet stylish wrist-worn design. The Fitbit Flex 2 is a simple yet effective tracker with a more exciting...

Waterproof, slim and stylish design, interchangeable accessories, accurate basic tracking, good value, great app platform

No elevation data, no GPS tracking, basic features, battery life could be better still, no third-party notification support

The Fitbit Flex 2 is a simple yet effective tracker with a more exciting design than its predecessor. Not a great deal has changed in terms of looks, but Fitbit has done enough to ensure the new-generation model doesn't look like a boring rubber band....

Dec, 2016

Expert review by (

Fitbit Flex 2 review


Fitbit's cheapest tracker is a good'un

Accurate tracking ; Comfortable fit ; Easy-to-use app

No display ; Cheaper trackers are available

A good, cheap fitness band with a great app

Nov, 2016

Expert review by : Andrew Williams (

Fitbit Flex 2 review


Fitbit's Flex is back for round two

Comfortable and light ; Fun software ; Water resistant

Battery life not great ; Slow to charge ; Feature-light hardware

The Fitbit Flex 2 is a solid choice for those after something simple, as well as those who are in need of a water-resistant tracker. It's smaller and sleeker than the original, but at the cost of battery life.

Nov, 2016

Product Specifications


Band color:Black / Lavender / Magenta / Navy
Band material:Elastomer
Band size:S/L
Color of product:Black / Lavender / Magenta / Navy
Device type:Wristband / Wristband activity tracker
Dust-resistant: Yes
Housing material:Elastomer, Stainless steel / Stainless Steel
LED Indicators:Y / Yes
Splash proof:Y / Yes
Waterproof:Y / Yes
Waterproof up to:1968.5 / 3937


Display Type:LED
Touch screen: No

Energy Management

Battery Technology:Lithium Polymer (LiPo)
Charging Time:2


Position location:N

Operational Conditions

Operating altitude:0 - 360000
Operating temperature (T-T):-10 - 45
Operating temperature range (T-T):-10 - 45

Packaging Content

Manual:Y / Yes


Accelerometer:Y / Yes
Active minutes:Y
Alarm clock:Y
Calories burned:Y
Distance traveled:Y
Floors climbed:N
Hours slept:Y
Memory capacity:30
Motion sensor:Y / Yes
Position location:N
Quality of sleep:Y
Stairs climbed:N / Y
Vibrating motor:Y
Workout tracking:Y

Ports & interfaces

Bluetooth:Y / Yes
Bluetooth version:4.0
Connectivity Technology:Wireless
Wi-Fi:N / No
Wireless technologies:Wireless


Battery Life:5
Battery Technology:Lithium Polymer (LiPo)
Charging Time:2

System Requirements

Mac compatibility:Y
Mac operating systems supported:Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks / Mac OS X 10.10 Yosemite,Mac OS X 10.11 El Capitan,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks / Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Mobile operating systems supported:Android 4.3, Android 4.4, Android 5.0, Android 5.1, iOS / Android 4.3, Android 4.4, Android 5.1, iOS / Android, iOS

Weight & Dimensions

Width:0.35 / 0.437