ASUS ZenWatch 2 vs. Withings Activite Sapphire vs. Garmin 645 Music vs. Samsung Gear 2 vs. Fitbit Alta HR

 
ZenWatch 2
Activite Sapphire
645 Music
Gear 2
Alta HR
 ASUSZenWatch 2Remove Buy NowWithingsActivite SapphireRemove Buy NowGarmin645 MusicRemove Buy NowSamsungGear 2Remove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$150$450$450$300$150
Release20162014201820142017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
StepsNA
Swim

Battery

Durationn/a8 months7 days2-3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/aNA
Windowsn/an/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320n/a240 x 240320 x 320128 x 36
Size1.63 inches or 1.45 inch1.3 inches1.2 inches1.63 inches1.4 inches
Touch
TypeAMOLEDAnalogMIPSuper AMOLEDOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATMIP67

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/aTizen OS
Apps
Music

All Wearables