Fitbit Alta vs. Fitbit Charge 2 vs. ASUS ZenWatch 3 vs. Fitbit Alta HR vs. Fitbit Flex

 
Alta
Charge 2
ZenWatch 3
Alta HR
Flex
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$130$150$229$150$100
Release20162016201720172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days48 hours7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400128 x 36NA
Sizen/an/a1.39 inches1.4 inchesNA
Touchn/an/aNA
TypeOLEDOLEDAMOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2NA
Apps
Music

All Wearables