Polar M400 vs. Polar M600 vs. Withings Steel HR vs. Garmin Vivoactive 3 vs. Apple Series 6

 
M400
M600
Steel HR
Vivoactive 3
Series 6
 PolarM400Remove Buy NowPolarM600Remove Buy NowWithingsSteel HRRemove Buy NowGarminVivoactive 3Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$330$180$299$399
Release20142016201620172020

Activity & Fitness

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

Battery

Duration8 hours to 30 days2 days25 days7 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240n/a240 x 240384 x 480
Sizen/a1.3 inchesn/a1.2 inches40mm
Touchn/a
Typen/aTFTn/aMIPMicroLED

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance3 ATMIPX85 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wearn/aWatchOS 5
Apps
Music

All Wearables