Fitbit Alta vs. Fitbit Charge 2 vs. Asus ZenWatch vs. Casio WSD-F20A vs. Garmin 645 Music

 
Alta
Charge 2
ZenWatch
WSD-F20A
645 Music
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowAsusZenWatchRemove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$130$150$150$399$450
Release20162016201420182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 daysNA1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 320320 x 320240 x 240
Sizen/an/a1.63 inches1.32 inches1.2 inches
Touchn/an/a
TypeOLEDOLEDAMOLEDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/aIP555 ATM5 ATM

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aAndroid WearWear OS
Apps
Music

All Wearables