Fitbit Alta HR vs Fitbit Flex 2

Full Comparison

General

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Bracelet
yesYes
yesYes
Bracelet Thickness
0.48 in
0.27 in
Bracelet Width
0.59 in
0.43 in
Clips
noNo
noNo

Image

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Display
yesYes
noNo

Dimensions

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Colour of product
Black, Blue, Grey, Orange, Pink, Purple, Red, Turquoise
Black, Blue, Grey, Orange, Pink, Purple, Red, Silver, Turquoise, Yellow
Weight
0.06 lb
0.04 lb

Features

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Water resistant
yesYes
yesYes
Fully Waterproof
noNo
yesYes
Calorie counter
yesYes
yesYes
Distance meter
yesYes
yesYes
Pedometer
yesYes
yesYes
Sleep reading
yesYes
yesYes
Touchscreen
yesYes
yesYes
Vibration alarm
yesYes
yesYes
Watch
yesYes
yesYes

Connectivity

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Bluetooth
yesYes
yesYes
Bluetooth version
4.0
4.0
GPS
noNo
noNo
NFC
noNo
noNo

Compatibility

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Compatible devices
Android, iPad, iPhone, iPod, Windows Phone
Android, iPad, iPhone, iPod, Windows Phone

Power

Fitbit Alta HRFitbit Alta HRFitbit Flex 2Fitbit Flex 2
Battery life
7 day
5 day
Battery type
Li-polymer
Li-polymer
Charging via USB
yesYes
yesYes

Often compared to Alta HR

Often compared to Flex 2