Polar M600 vs. Withings Activite Sapphire vs. Michael Kors Access Sofie vs. Garmin Vivosmart 4 vs. Amazfit GTR

 
M600
Activite Sapphire
Access Sofie
Vivosmart 4
GTR
 PolarM600Remove Buy NowWithingsActivite SapphireRemove Buy NowMichael KorsAccess SofieRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$330$450$395$130$199
Release20162014201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days8 months1 day7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a390 x 390 1.19 inches48 x 128454 x 454
Size1.3 inches1.3 inches0.74 inches1.39 inches
Touchn/aAMOLDED
TypeTFTAnalogOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX85 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0Build-in
Apps
Music

All Wearables