Fitbit Flex vs Xiaomi Mi Band 3

Full Comparison

General

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Bracelet
yesYes
yesYes
Bracelet Thickness
0.39 in
0.47 in
Bracelet Width
0.55 in
0.70 in

Image

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Display
noNo
yesYes

Dimensions

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Colour of product
Black, Blue, Green, Grey, Orange, Pink, Purple, Red, Turquoise, Yellow
Black

Features

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Water resistant
yesYes
yesYes
Heart rate monitor
yesYes
yesYes
Sleep reading
yesYes
yesYes
Touchscreen
yesYes
yesYes
Vibration alarm
yesYes
yesYes
Watch
yesYes
yesYes

Connectivity

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Bluetooth
yesYes
yesYes
Bluetooth version
4.0
4.2
GPS
noNo
noNo
NFC
yesYes
noNo

Power

Fitbit FlexFitbit FlexXiaomi Mi Band 3Xiaomi Mi Band 3
Battery life
5 day
20 day
Battery type
Li-polymer
Li-Ion
Charging via USB
yesYes
yesYes

Often compared to Flex

Often compared to Mi Band 3