Apple Watch Series 3 vs. Amazfit Arc vs. Casio WSD-F20A vs. Garmin 645 Music vs. Apple Watch Ultra

 
Watch Series 3
Arc
WSD-F20A
645 Music
Watch Ultra
 AppleWatch Series 3Remove Buy NowAmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$329$69.99$399$450$799
Release20172016201820182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours20 days1 day7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 31272 x40320 x 320240 x 240502x410 pixels
Size1.5 inches or 1.65 inches0.42 inches1.32 inches1.2 inches1.92 inches
Touch
TypeAMOLEDOLEDLCDMIP

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4Wear OSWatchOS 9
Apps
Music

All Wearables