Garmin Forerunner 935 vs. Garmin 645 Music vs. Sony SmartBand vs. Michael Kors Access Sofie HR vs. Amazfit GTR

 
Forerunner 935
645 Music
SmartBand
Access Sofie HR
GTR
 GarminForerunner 935Remove Buy NowGarmin645 MusicRemove Buy NowSonySmartBandRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$500$450$100$395$199
Release20172018201420192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

DurationUp to 2 weeks7 days5 days2 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

ColorNA
Resolution240 x 240240 x 240NA390 x 390454 x 454
Size1.2 inches1.2 inchesNA1.19 inches1.39 inches
TouchNA
TypeLCDMIPNAOMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATMIP580.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSBuild-in
Apps
Music

All Wearables