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Fitbit Alta HR vs Fitbit Charge 2

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Fitbit

Alta HR

 

Fitbit

Charge 2

 
Bracelet
Bracelet Thickness
12.3 mm
12.7 mm
Bracelet Width
15 mm
21.45 mm
Clips
Display
Colour of product
Black, Blue, Grey, Orange, Pink, Purple, Red, Turquoise
Black, Blue, Green, Grey, Pink, Purple, Silver, Turquoise
Weight
25 g
35 g
Water resistant
Fully Waterproof
IP code (level of dust/water resistance)
IP67
IP34
Heart rate monitor
Caller ID
Calorie counter
Distance meter
Pedometer
Sleep reading
Touchscreen
Vibration alarm
Watch
Bluetooth
Bluetooth version
4.0
4.0
GPS
NFC
Compatible devices
Android, iPad, iPhone, iPod, Windows Phone
Android, iPad, iPhone, iPod, Windows Phone
Battery life
7 day
5 day
Battery type
Li-polymer
Li-polymer
Charging via USB