Apple Watch Series 3 vs. Polar M400 vs. Garmin Vivosmart vs. HTC re Grip vs. Apple Watch 8

 
Watch Series 3
M400
Vivosmart
re Grip
Watch 8
 AppleWatch Series 3Remove Buy NowPolarM400Remove Buy NowGarminVivosmartRemove Buy NowHTCre GripRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$329$200$170$199$499
Release20172014201420202022

Activity & Fitness

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

Battery

Duration18 hours8 hours to 30 days7 days5 hours to 2.5 days18 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312n/a128 x 16160 x 32340 x 272 or 390 x 312
Size1.5 inches or 1.65 inchesn/a1.41 inches1.8 inches1.5 inches or 1.65 inches
Touch
TypeAMOLEDn/aOLEDPMOLEDAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM3 ATM5 ATMIP575 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 4n/an/aNAWatchOS 9
Apps
Music

All Wearables