Pebble Time vs. Michael Kors Grayson vs. Sony SmartBand vs. Michael Kors Grayson vs. Garmin Vivosmart 4 vs. Amazfit T-Rex

 
Time
Grayson
SmartBand
Grayson
Vivosmart 4
T-Rex
 PebbleTimeRemove Buy NowMichael KorsGraysonRemove Buy NowSonySmartBandRemove Buy NowMichael KorsGraysonRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$150$350$100$350$130$140
Release201520182014201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days24 hours5 days24 hours7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution168 x 144453 x 454NA453x45448 x 128360 x 360
Size1.26 inches1.39 inchesNA1.39 inches0.74 inches1.3 inches
TouchNA
Typee-paperAMOLEDNAAMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMIP581 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables