Fitbit Alta vs. ASUS ZenWatch 3 vs. Casio G-Shock GBA800 vs. Amazfit T-Rex vs. Apple Series 6

 
Alta
ZenWatch 3
G-Shock GBA800
T-Rex
Series 6
 FitbitAltaRemove Buy NowASUSZenWatch 3Remove Buy NowCasioG-Shock GBA800Remove Buy NowAmazfitT-RexRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$130$229$120$140$399
Release20162017201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days48 hours2 years20 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a400 x 400360 x 360384 x 480
Sizen/a1.39 inches1.3 inches40mm
Touchn/a
TypeOLEDAMOLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistancen/a20 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aAndroid Wear 2Build-inWatchOS 5
Apps
Music

All Wearables