Motorola Moto 360 (2nd Gen) vs. Casio WSD-F20A vs. Fitbit Flex vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
WSD-F20A
Flex
Vivosmart 4
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$399$100$130$140
Release20152018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1.5 days1 day5 days7 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330320 x 320NA48 x 128360 x 360
Size1.37 inches or 1.56 inches1.32 inchesNA0.74 inches1.3 inches
TouchNA
TypeLCDLCDLEDOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP675 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearWear OSNABuild-in
Apps
Musicn/a

All Wearables