Casio WSD-F20A vs. Diesel On Full Guard vs. Polar A370 vs. HTC re Grip vs. Apple Watch 8

 
WSD-F20A
On Full Guard
A370
re Grip
Watch 8
 CasioWSD-F20ARemove Buy NowDieselOn Full GuardRemove Buy NowPolarA370Remove Buy NowHTCre GripRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$399$325$179.95$199$499
Release20182017201720202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day1 dayUp to 3 days5 hours to 2.5 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320454 x 454160 x 80160 x 32340 x 272 or 390 x 312
Size1.32 inches1.4 inches1.18 inches1.8 inches1.5 inches or 1.65 inches
Touch
TypeLCDOMOLEDTFT LCDPMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP67WR30IP575 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSAndroid Wear 2.0NAWatchOS 9
Apps
Music

All Wearables