Garmin Vivosmart vs. Sony SmartBand 2 vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Vivosmart
SmartBand 2
Grayson
Charge 3
Grayson
T-Rex
 GarminVivosmartRemove Buy NowSonySmartBand 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$170$130$350$150$350$140
Release201420152018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days24 hours7 days24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Macn/an/a
Windowsn/an/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolution128 x 16n/a453 x 45466 x 18453x454360 x 360
Size1.41 inchesn/a1.39 inches.721 inches1.39 inches1.3 inches
Touchn/a
TypeOLEDn/aAMOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables