Michael Kors Grayson vs. Mobvoi TicWatch S vs. Fitbit Alta HR vs. Fitbit Flex vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Grayson
TicWatch S
Alta HR
Flex
Grayson
T-Rex
 Michael KorsGraysonRemove Buy NowMobvoiTicWatch SRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$350$199$150$100$350$140
Release201820172017201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration24 hours1.5-2 days7 days5 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution453 x 454400 x 400128 x 36NA453x454360 x 360
Size1.39 inches1.4 inches1.4 inchesNA1.39 inches1.3 inches
TouchNA
TypeAMOLEDOLEDOLEDLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATMIP671 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid WearAndroid Wear 2.0NAAndroid WearBuild-in
Apps
Music

All Wearables