Polar M400 vs. Microsoft Band 2 vs. Garmin Forerunner 935 vs. Fitbit Versa vs. Apple Series 6

 
M400
Band 2
Forerunner 935
Versa
Series 6
 PolarM400Remove Buy NowMicrosoftBand 2Remove Buy NowGarminForerunner 935Remove Buy NowFitbitVersaRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$250$500$199.99$399
Release20142015201720182020

Activity & Fitness

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

Battery

Duration8 hours to 30 days48 hours (without GPS)Up to 2 weeks4 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 128240 x 240300 x300384 x 480
Sizen/a1.36 inches1.2 inches1.34 inches40mm
Touch
Typen/aCapacitative TFTLCDOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance3 ATMIPX75 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatchOS 5
Apps
Music

All Wearables