Fitbit Alta vs. Apple Watch Series 2 vs. Asus ZenWatch vs. Casio WSD-F20A vs. Apple Watch 7

 
Alta
Watch Series 2
ZenWatch
WSD-F20A
Watch 7
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowAsusZenWatchRemove Buy NowCasioWSD-F20ARemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$130$269$150$399$429
Release20162016201420182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hoursNA1 day18 Hours
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312320 x 320320 x 320396 x 484
Sizen/a1.5 inches or 1.65 inches1.63 inches1.32 inches1.9 inches
Touchn/a
TypeOLEDAMOLEDAMOLEDLCDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATMIP555 ATMwater resistant but not waterproof

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/aWatch OSAndroid WearWear OSWatchOS 8
Apps
Music

All Wearables