Fitbit Surge vs. Fitbit Alta vs. ASUS ZenWatch 3 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Surge
Alta
ZenWatch 3
Grayson
Grayson
T-Rex
 FitbitSurgeRemove Buy NowFitbitAltaRemove Buy NowASUSZenWatch 3Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$130$229$350$350$140
Release201620162017201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days48 hours24 hours24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400453 x 454453x454360 x 360
Size1.26 inchesn/a1.39 inches1.39 inches1.39 inches1.3 inches
Touchn/a
TypeMonochrome LCDOLEDAMOLEDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMn/a1 ATM1 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/aAndroid Wear 2Android WearAndroid WearBuild-in
Apps
Music

All Wearables