Polar Loop 2 vs. Samsung Gear Fit vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4 vs. Amazfit GTR

 
Loop 2
Gear Fit
Access Sofie HR
Vivosmart 4
GTR
 PolarLoop 2Remove Buy NowSamsungGear FitRemove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$120$150$395$130$199
Release20152014201920182019

Activity & Fitness

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

Battery

Duration8 days (without notifications)2-3 days2 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a432 x 128390 x 39048 x 128454 x 454
Sizen/a1.84 inches1.19 inches0.74 inches1.39 inches
Touch
TypeLEDSuper AMOLEDOMOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATMIP670.3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSBuild-in
Apps
Music

All Wearables