Fitbit Alta vs. Apple Watch Series 2 vs. ASUS ZenWatch 3 vs. Casio G-Shock GBA800 vs. Garmin 645 Music

 
Alta
Watch Series 2
ZenWatch 3
G-Shock GBA800
645 Music
 FitbitAltaRemove Buy NowAppleWatch Series 2Remove Buy NowASUSZenWatch 3Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$130$269$229$120$450
Release20162016201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours48 hours2 years7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312400 x 400240 x 240
Sizen/a1.5 inches or 1.65 inches1.39 inches1.2 inches
Touchn/a
TypeOLEDAMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5ATM20 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aWatch OSAndroid Wear 2
Apps
Music

All Wearables