ASUS ZenWatch 2 vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Casio WSD-F20A vs. Amazfit GTR

 
ZenWatch 2
Flex 2
Stratos
WSD-F20A
GTR
 ASUSZenWatch 2Remove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowCasioWSD-F20ARemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$150$100$199$399$199
Release20162016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a5 days5 days1 day24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution320 x 320n/a320 x 300320 x 320454 x 454
Size1.63 inches or 1.45 inchn/a1.34 inches1.32 inches1.39 inches
Touchn/a
TypeAMOLEDLEDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emailsn/a
Textsn/a

Software

Operating SystemAndroid Wearn/aProprietaryWear OSBuild-in
Apps
Music

All Wearables