Fitbit Flex

Fitbit Flex

Fitbit Flex review: specs and price

Fitbit Flex
Fitbit Flex

Why is Fitbit Flex better than the average?

  • Width
  • smaller app size (iOS app)
  • Number of Android fitness apps supported
  • Fitness apps supported
  • Higher rating on the App Store
  • Number of iOS fitness apps supported
  • Maximum altitude
  • Higher rating on Google Play

Top specs and features


1.Is dustproof and water resistant
Fitbit Flex

Dustproof/water resistant at depth equal to or greater than 1 meter.

2.Has a display
Fitbit Flex

The device has an electronic display to present information to the user.

3.waterproofing maximum depth


These devices will not experience water damage, e.g. in the shower. Devices which can withstand more water pressure are better for swimming or diving.


Runtastic Moment Elite


4.sweat resistant
Fitbit Flex

Resistance to sweat makes it ideal for use while doing sports.




Misfit Ray


6.maximum operating temperature


The maximum temperature at which the device can perform to the optimal level.


Fitbit Surge



1.has an accelerometer
Fitbit Flex

An accelerometer is a sensor used to measure the linear acceleration of a device. A common application is detecting when a device changes between vertical and horizontal positions.

Activity tracking

1.Tracks your sleep
Fitbit Flex

It can track your sleep, such as how long you sleep for and the quality.

2.Provides activity reports
Fitbit Flex

Your activity data is analysed to give you reports, available to view through the app or website. This allows you to see how active you have been and to help you make improvements.

3.Has exercise tagging
Fitbit Flex

After exercising, you can add details of your workout eg. jogging, swimming, cycling. This enables the device to provide more accurate information, such as the number of calories burnt.

4.Provides sleep reports
Fitbit Flex

Your sleep data is analysed to give you a report, available to view through the app or website. This allows you to see the quality of your sleep and to help you make improvements.

5.Tracks steps taken
Fitbit Flex

It tracks how many steps you take throughout the day, allowing you to see how active you have been.

6.Counts how many calories you have burnt
Fitbit Flex

This is useful if you are on a strict training diet or if you are trying to lose weight. It can also help to boost your motivation.


1.Syncs wirelessly
Fitbit Flex

The device syncs all of your data wirelessly, without the need for cables.

2.Automatically syncs
Fitbit Flex

The device automatically syncs your data when in range of your computer or smartphone.

3.Bluetooth version



Huawei Band 2 Pro


4.Has Bluetooth
Fitbit Flex

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.

5.Is compatible with Android
Fitbit Flex

It is compatible with a range of Android devices such as smartphones and tablets.

6.Is compatible with iOS
Fitbit Flex

It is compatible with a range of iOS devices such as iPhones, iPads and the iPod Touch.


1.battery life

6 days

With a longer battery life, you don’t have to worry about charging the device as often.


Garmin Vivofit 4 (large)

365 days

2.has a rechargeable battery
Fitbit Flex

The battery can be recharged and used over again.


1.Has silent alarm
Fitbit Flex

The device can wake you using vibration, so as not to disturb anyone else sleeping in the room.

2.Has inactivity alerts
Fitbit Flex

The device detects when you have been idle for too long, and alerts you to encourage you to stay active.

3.Has a stopwatch
Fitbit Flex

With a stopwatch you can time yourself.

4.Has achievements
Fitbit Flex

You are awarded achievements for reaching goals, helping to encourage you and keep you motivated.

5.Has social features
Fitbit Flex

Friends using the same app can be integrated with your account, allowing you to compete with them. This increases your motivation and makes it more enjoyable.

6.Integrates with social networks
Fitbit Flex

It allows you to share information to popular social networks.


1.Free application
Fitbit Flex

You can download the app for free, from platforms such as Google Play or the App Store.

2.Has exercise diary
Fitbit Flex

It has an exercise diary, allowing you to easily keep track of your previous workouts.

3. smaller app size (iOS app)

14MB (Fitbit App)

A smaller size means that the app will take up less space on your Apple device. This leaves more space for other apps, as well as other data such as photos and music.


Bowflex Boost


Fitbit Flex

Adverts can be distracting and obtrusive. Apps and blogs without ads are more aesthetically pleasing, nicer to use, and make the content stand out.

5.Syncs to the cloud
Fitbit Flex

Your data is synced to the cloud, making it easier to access across different devices and making sure it is always backed up in case you lose your device.

6.Compatible with heart rate monitors
Fitbit Flex

It supports third-party heart rate monitors to incorporate your pulse data.


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