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

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

Basic Info

Suggested Price$130$269$349$150$399
Release20162016201520142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours18 hoursNA1 day
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312340 x 272 or 390 x 312320 x 320320 x 320
Sizen/a1.5 inches or 1.65 inches1.5 inches or 1.65 inches1.63 inches1.32 inches
Touchn/a
TypeOLEDAMOLEDAMOLEDAMOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATMIPX7IP555 ATM

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/aWatch OSWatch OSAndroid WearWear OS
Apps
Music

All Wearables