Fitbit Alta vs. Fitbit Charge 2 vs. Fitbit Alta HR vs. Fitbit Charge HR vs. Fitbit Flex

 
Alta
Charge 2
Alta HR
Charge HR
Flex
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowFitbitAlta HRRemove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$130$150$150$150$100
Release20162016201720152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a128 x 36NANA
Sizen/an/a1.4 inchesNANA
Touchn/an/aNANA
TypeOLEDOLEDOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/a1 ATM1 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables