Polar M600 vs. Polar Loop 2 vs. Pebble Time 2 vs. Michael Kors Access Sofie HR vs. Garmin Vivosmart 4

 
M600
Loop 2
Time 2
Access Sofie HR
Vivosmart 4
 PolarM600Remove Buy NowPolarLoop 2Remove Buy NowPebbleTime 2Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$330$120$199$395$130
Release20162015201620192018

Activity & Fitness

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

Battery

Duration2 days8 days (without notifications)10 days2 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/aNA390 x 39048 x 128
Size1.3 inchesn/aNA1.19 inches0.74 inches
Touchn/a
TypeTFTLEDe-paperOMOLEDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX82 ATM3 ATM0.3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aPebble OSWear OS
Apps
Music

All Wearables