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Fitbit Alta vs Fitbit Charge 2

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Fitbit

Alta

 

Fitbit

Charge 2

 
Bracelet
Bracelet Width
15.4 mm
21.45 mm
Clips
Display
Available colours
Black, Blue, Green, Pink, Purple, Silver, Turquoise, Gold
Black, Blue, Green, Grey, Pink, Purple, Silver, Turquoise
Weight
30 g
35 g
Water resistant
Fully Waterproof
Caller ID
Calorie counter
Distance meter
Pedometer
Sleep reading
Stopwatch
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
5 day
5 day
Battery type
Li-polymer
Li-polymer
Charging via USB