Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Fitbit Flex vs. Amazfit GTR vs. Fitbit Sense 2

 
Moto 360 (2nd Gen)
M400
Flex
GTR
Sense 2
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowFitbitFlexRemove Buy NowAmazfitGTRRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$300$200$100$199$300
Release20152014201320192022

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 days5 days24 days6 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/aNA454 x 454336x336
Size1.37 inches or 1.56 inchesn/aNA1.39 inches1.59 inches
TouchNA
TypeLCDn/aLEDAMOLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aNABuild-in
Apps
Musicn/a

All Wearables