Fitbit Alta vs. Fitbit Flex 2 vs. Asus ZenWatch vs. Casio WSD-F20A vs. Fitbit Alta HR

 
Alta
Flex 2
ZenWatch
WSD-F20A
Alta HR
 FitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowAsusZenWatchRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$130$100$150$399$150
Release20162016201420182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 daysNA1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 320320 x 320128 x 36
Sizen/an/a1.63 inches1.32 inches1.4 inches
Touchn/an/a
TypeOLEDLEDAMOLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP555 ATM

Notifications

Phone
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aAndroid WearWear OS
Apps
Music

All Wearables