We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Fitbit Charge 3 vs Fitbit Flex

Fitbit Charge 3 Activity Tracker
Fitbit Charge 3
Fitbit Flex Activity Tracker
Fitbit Flex
Available colors
Editiorial reviews
18
3.9 out of 5
9 user ratings
5 stars
11 %
4 stars
77 %
3 stars
11 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
16
3.9 out of 5
8 user ratings
5 stars
12 %
4 stars
87 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
40
4.1 out of 5
40 user ratings
5 stars
37 %
4 stars
35 %
3 stars
25 %
2 stars
2 %
1 stars
0 %
40
4.6 out of 5
40 user ratings
5 stars
67 %
4 stars
25 %
3 stars
7 %
2 stars
0 %
1 stars
0 %

Full Comparison

General

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Braceletyesyes
Bracelet Width0.72 in0.55 in
Clipsnono

Image

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Displayyesno
Display typeOLEDLED

Dimensions

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Weight1.06 oz0.3 oz

Design

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Colour of product
  • Black
  • Blue
  • Lavender
  • White
  • Black
  • Blue
  • Green
  • Grey
  • Lime
  • Navy
  • Orange
  • Pink
  • Red
  • Turquoise

Features

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Water resistantyesyes
Fully Waterproofyesno
Accelerometeryesyes
Heart rate monitoryesyes
Calorie counteryesyes
Distance meteryesyes
Pedometeryesyes
Sleep readingyesyes
Touchscreenyesno
Vibration alarmyesyes
Watchyesyes

Connectivity

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Bluetoothyesyes
Bluetooth version4.04.0 LE
GPSnono
NFCyesyes

Compatibility

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Compatible devices
  • Android
  • iPad
  • iPhone
  • iPod
  • Android
  • iPad
  • iPhone
  • iPod
  • Windows Phone

Power

Fitbit Charge 3Fitbit Charge 3
Fitbit FlexFitbit Flex
Battery life7.0 day5.0 day
Battery type
Lithium Polymer
Lithium Polymer
Charging via USByesyes

Pros & Cons

Pros
      Cons

          Often compared with Fitbit Charge 3

          Often compared with Fitbit Flex