TomTom Touch vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Polar A370 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Touch
Grayson
Alta HR
A370
Grayson
T-Rex
 TomTomTouchRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$350$150$179.95$350$140
Release201620182017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours7 daysUp to 3 days24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454128 x 36160 x 80453x454360 x 360
Size0.91 inches1.39 inches1.4 inches1.18 inches1.39 inches1.3 inches
Touch
Typen/aAMOLEDOLEDTFT LCDAMOLEDAMOLED

Functions

Audio Speaker
Clockn/a
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX71 ATMWR301 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid WearBuild-in
Apps
Music

All Wearables