Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. ASUS ZenWatch 3 vs. Fitbit Flex vs. Amazfit GTS

 
Moto 360 (2nd Gen)
M400
ZenWatch 3
Flex
GTS
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowASUSZenWatch 3Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$300$200$229$100$150
Release20152014201720132019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration1.5 days8 hours to 30 days48 hours5 days14 days
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a400 x 400NA348 x 442
Size1.37 inches or 1.56 inchesn/a1.39 inchesNA1.65 inches
TouchNA
TypeLCDn/aAMOLEDLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2NAWear OS
Apps
Musicn/a

All Wearables