Garmin Forerunner 225 vs. Casio WSD-F20A vs. Garmin 645 Music vs. Amazfit GTR vs. Apple SE

 
Forerunner 225
WSD-F20A
645 Music
GTR
SE
 GarminForerunner 225Remove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$300$399$450$199$279
Release20152018201820192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks1 day7 days24 days18 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180320 x 320240 x 240454 x 454384 x 480
Size1 inch1.32 inches1.2 inches1.39 inches40mm
Touch
Typen/aLCDMIPAMOLEDMicroLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aWear OSBuild-inWatchOS 5
Appsn/a
Musicn/a

All Wearables