Garmin Forerunner 225 vs. Fitbit Flex 2 vs. Casio G-Shock GBA800 vs. Diesel On Full Guard vs. Amazfit T-Rex

 
Forerunner 225
Flex 2
G-Shock GBA800
On Full Guard
T-Rex
 GarminForerunner 225Remove Buy NowFitbitFlex 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowDieselOn Full GuardRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$100$120$325$140
Release20152016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks5 days2 years1 day20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution180 x 180n/a454 x 454360 x 360
Size1 inchn/a1.4 inches1.3 inches
Touchn/a
Typen/aLEDOMOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM20 ATMIP675 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/an/aAndroid Wear 2.0Build-in
Appsn/a
Musicn/a

All Wearables