Polar M400 vs. Asus ZenWatch vs. Garmin Chronos vs. Garmin Forerunner 235 vs. Apple Watch 8

 
M400
ZenWatch
Chronos
Forerunner 235
Watch 8
 PolarM400Remove Buy NowAsusZenWatchRemove Buy NowGarminChronosRemove Buy NowGarminForerunner 235Remove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$200$150$1500$299.99$499
Release20142014201820172022

Activity & Fitness

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

Battery

Duration8 hours to 30 daysNA8 days9 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320218 x 218215 x 180340 x 272 or 390 x 312
Sizen/a1.63 inches1.2 inches1.23 inches1.5 inches or 1.65 inches
Touch
Typen/aAMOLEDMIPMIPAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMIP5510 ATM5 ATM5 ATM

Notifications

Phone
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearWear OSWatchOS 9
Apps
Music

All Wearables