Polar M400 vs. Polar V800 vs. Microsoft Band 2 vs. Garmin 645 Music vs. Michael Kors Access Sofie

 
M400
V800
Band 2
645 Music
Access Sofie
 PolarM400Remove Buy NowPolarV800Remove Buy NowMicrosoftBand 2Remove Buy NowGarmin645 MusicRemove Buy NowMichael KorsAccess SofieRemove Buy Now

Basic Info

Suggested Price$200$470$250$450$395
Release20142014201520182017

Activity & Fitness

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

Battery

Duration8 hours to 30 days13 hours to 30 days48 hours (without GPS)7 days1 day
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 128240 x 240390 x 390 1.19 inches
Sizen/an/a1.36 inches1.2 inches
TouchAMOLDED
Typen/an/aCapacitative TFTMIP

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM3 ATMIPX75 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid Wear 2.0
Apps
Music

All Wearables