Garmin Vivoactive HR vs. Polar M400 vs. Fitbit Charge 2 vs. Amazfit GTR vs. Apple Series 6

 
Vivoactive HR
M400
Charge 2
GTR
Series 6
 GarminVivoactive HRRemove Buy NowPolarM400Remove Buy NowFitbitCharge 2Remove Buy NowAmazfitGTRRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$250$200$150$199$399
Release20162014201620192020

Activity & Fitness

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

Battery

Duration13 hours to 8 days8 hours to 30 days5 days24 daysNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution148 x 205n/an/a454 x 454384 x 480
Size1.38 inchesn/an/a1.39 inches40mm
Touchn/a
Typen/an/aOLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM3 ATMn/a5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aBuild-inWatchOS 5
Apps
Music

All Wearables