Polar M400 vs. Garmin Vivosmart HR vs. Samsung Gear Fit2 Pro vs. Garmin VivoActive 4 vs. Apple Series 6

 
M400
Vivosmart HR
Gear Fit2 Pro
VivoActive 4
Series 6
 PolarM400Remove Buy NowGarminVivosmart HRRemove Buy NowSamsungGear Fit2 ProRemove Buy NowGarminVivoActive 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$200$170$199.99$349$399
Release20142015201720192020

Activity & Fitness

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

Battery

Duration8 hours to 30 days5 days2 days8 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a160 x 68216 x 432260 x 260384 x 480
Sizen/a1.08 inches1.5 inches1.3ionches40mm
Touch
Typen/an/aAMOLEDMIPMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aTizen OSWear OSWatchOS 5
Apps
Music

All Wearables