Apple Watch Series 3 vs. Garmin Forerunner 225 vs. Apple Watch Series 2 vs. Casio G-Shock GBA800 vs. Amazfit T-Rex

 
Watch Series 3
Forerunner 225
Watch Series 2
G-Shock GBA800
T-Rex
 AppleWatch Series 3Remove Buy NowGarminForerunner 225Remove Buy NowAppleWatch Series 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$300$269$120$140
Release20172015201620182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours10 hours to 4 weeks18 hours2 years20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312180 x 180340 x 272 or 390 x 312360 x 360
Size1.5 inches or 1.65 inches1 inch1.5 inches or 1.65 inches1.3 inches
Touch
TypeAMOLEDn/aAMOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5ATM20 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemWatchOS 4n/aWatch OSBuild-in
Appsn/a
Musicn/a

All Wearables