Casio WSD-F20A vs. Garmin 645 Music vs. Garmin Fenix 5X vs. Garmin Forerunner 235 vs. Amazfit T-Rex

 
WSD-F20A
645 Music
Fenix 5X
Forerunner 235
T-Rex
 CasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowGarminFenix 5XRemove Buy NowGarminForerunner 235Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$399$450$699$299.99$140
Release20182018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day7 daysUp to 12 days9 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320240 x 240240 x240215 x 180360 x 360
Size1.32 inches1.2 inches1.2 inches1.23 inches1.3 inches
Touch
TypeLCDMIPNAMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM10 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSBuild-in
Apps
Music

All Wearables