Fitbit Charge HR vs. Fitbit Flex

 
Charge HR
Flex
 FitbitCharge HRBuy NowFitbitFlexBuy Now

Basic Info

Suggested Price$150$100
Release20152013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNANA
SizeNANA
TouchNANA
TypeOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNANA
Apps
Music

All Wearables