Diesel On Full Guard vs. Michael Kors Grayson vs. Polar A370 vs. Michael Kors Grayson vs. Fitbit Inspire HR vs. Amazfit T-Rex

 
On Full Guard
Grayson
A370
Grayson
Inspire HR
T-Rex
 DieselOn Full GuardRemove Buy NowMichael KorsGraysonRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$325$350$179.95$350$99$140
Release201720182017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration1 day24 hoursUp to 3 days24 hours5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution454 x 454453 x 454160 x 80453x454139 x 60360 x 360
Size1.4 inches1.39 inches1.18 inches1.39 inches1.4 inches1.3 inches
Touch
TypeOMOLEDAMOLEDTFT LCDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP671 ATMWR301 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear 2.0Android WearAndroid WearFitbit OSBuild-in
Apps
Music

All Wearables