Motorola Moto 360 (2nd Gen) vs. Polar M400 vs. Asus ZenWatch vs. LG G Watch R vs. Amazfit T-Rex

 
Moto 360 (2nd Gen)
M400
ZenWatch
G Watch R
T-Rex
 MotorolaMoto 360 (2nd Gen)Remove Buy NowPolarM400Remove Buy NowAsusZenWatchRemove Buy NowLGG Watch RRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$300$200$150$300$140
Release20152014201420142019

Activity & Fitness

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

Battery

Duration1.5 days8 hours to 30 daysNA2 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution360 x 325 or 360 x 330n/a320 x 320320 x 320360 x 360
Size1.37 inches or 1.56 inchesn/a1.63 inches1.3 inches1.3 inches
Touch
TypeLCDn/aAMOLEDP-OLEDAMOLED

Functions

Audio SpeakerBluetoothAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP673 ATMIP55IP675 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating SystemAndroid Wearn/aAndroid WearAndroid WearBuild-in
Apps
Musicn/a

All Wearables