Polar M400 vs. Casio WSD-F20A vs. Garmin Forerunner 235 vs. Garmin Vivosmart 3 vs. Apple Watch Ultra

 
M400
WSD-F20A
Forerunner 235
Vivosmart 3
Watch Ultra
 PolarM400Remove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowGarminVivosmart 3Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$200$399$299.99$139.99$799
Release20142018201720172022

Activity & Fitness

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

Battery

Duration8 hours to 30 days1 day9 days5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320215 x 18064 x 128502x410 pixels
Sizen/a1.32 inches1.23 inchesNA1.92 inches
Touch
Typen/aLCDMIPOLED

Functions

Audio SpeakerAlerts only
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWatchOS 9
Apps
Music

All Wearables