Garmin Vivosmart HR vs. Michael Kors Grayson vs. Fitbit Alta HR vs. Michael Kors Grayson vs. Mobvoi TicWatch S2 vs. Amazfit T-Rex

 
Vivosmart HR
Grayson
Alta HR
Grayson
TicWatch S2
T-Rex
 GarminVivosmart HRRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitAlta HRRemove Buy NowMichael KorsGraysonRemove Buy NowMobvoiTicWatch S2Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$350$150$350$180$140
Release201520182017201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hours7 days24 hours2 DAYS20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 68453 x 454128 x 36453x454400 x 400360 x 360
Size1.08 inches1.39 inches1.4 inches1.39 inches1.39 inches1.3 inches
Touch
Typen/aAMOLEDOLEDAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearAndroid WearWear OSBuild-in
Apps
Music

All Wearables