Apple Watch Series 3 vs. Fitbit Alta vs. Apple Watch Series 2 vs. Casio WSD-F20A vs. Fitbit Inspire 3

 
Watch Series 3
Alta
Watch Series 2
WSD-F20A
Inspire 3
 AppleWatch Series 3Remove Buy NowFitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitInspire 3Remove Buy Now

Basic Info

Suggested Price$329$130$269$399$100
Release20172016201620182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours5 days18 hours1 day10 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a340 x 272 or 390 x 312320 x 32032x18
Size1.5 inches or 1.65 inchesn/a1.5 inches or 1.65 inches1.32 inches46 inches
Touchn/a
TypeAMOLEDOLEDAMOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a5ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating SystemWatchOS 4n/aWatch OSWear OS
Apps
Music

All Wearables