Polar Loop 2 vs. Michael Kors Grayson vs. Motorola Moto 360 (1st Gen) vs. Michael Kors Grayson vs. Amazfit T-Rex vs. HTC re Grip

 
Loop 2
Grayson
Moto 360 (1st Gen)
Grayson
T-Rex
re Grip
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$120$350$150$350$140$199
Release201520182014201820192020

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours1 day24 hours20 days5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/aNANA
Windowsn/aNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454320 x 260453x454360 x 360160 x 32
Sizen/a1.39 inches1.56 inches1.39 inches1.3 inches1.8 inches
Touch
TypeLEDAMOLEDLCDAMOLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATMIP671 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid WearAndroid WearBuild-inNA
Apps
MusicNA

All Wearables