Garmin 645 Music vs. Jawbone UP4 vs. Michael Kors Access Sofie HR vs. Fitbit Inspire HR vs. Amazfit GTR

 
645 Music
UP4
Access Sofie HR
Inspire HR
GTR
 Garmin645 MusicRemove Buy NowJawboneUP4Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowFitbitInspire HRRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$450$200$395$99$199
Release20182015201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 daysNA2 days5 days24 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240NA390 x 390139 x 60454 x 454
Size1.2 inchesNA1.19 inches1.4 inches1.39 inches
TouchNA
TypeMIPNAOMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMNA0.3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSFitbit OSBuild-in
Apps
MusicNA

All Wearables