Polar A360 vs. ASUS ZenWatch 3 vs. Casio G-Shock GBA800 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
A360
ZenWatch 3
G-Shock GBA800
Forerunner 45
T-Rex
 PolarA360Remove Buy NowASUSZenWatch 3Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$229$120$199$140
Release20152017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days48 hours2 years7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80400 x 400208 x 208360 x 360
Size1.18 inches1.39 inches1.04 inches1.3 inches
Touch
Typen/aAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR3020 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2Built-inBuild-in
Apps
Music

All Wearables