Fitbit Flex 2 vs. Polar M430 vs. Asus ZenWatch vs. Fitbit Alta HR vs. Jaybird Reign

 
Flex 2
M430
ZenWatch
Alta HR
Reign
 FitbitFlex 2Remove Buy NowPolarM430Remove Buy NowAsusZenWatchRemove Buy NowFitbitAlta HRRemove Buy NowJaybirdReignRemove Buy Now

Basic Info

Suggested Price$100$255$150$150$150
Release20162017201420172015

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days30 hoursNA7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128x128320 x 320128 x 36NA
Sizen/a1.4 inch1.63 inches1.4 inchesNA
Touchn/aNA
TypeLEDLCDAMOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR30IP55NA

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNA
Apps
Music

All Wearables