Samsung Gear S2 vs. ASUS ZenWatch 3 vs. Amazfit Cor vs. Polar A370 vs. Amazfit T-Rex

 
Gear S2
ZenWatch 3
Cor
A370
T-Rex
 SamsungGear S2Remove Buy NowASUSZenWatch 3Remove Buy NowAmazfitCorRemove Buy NowPolarA370Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$229$79.99$179.95$140
Release20152017201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days48 hours12 daysUp to 3 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

BluetoothYes
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360400 x 40080 x 160160 x 80360 x 360
Size1.2 inches1.39 inches1.23 inches1.18 inches1.3 inches
Touch
TypeSuper AMOLEDAMOLEDIPS LCDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenAndroid Wear 2Build-in
Apps
Music

All Wearables