Polar M400 vs. Fitbit One vs. ASUS ZenWatch 3 vs. Polar M430 vs. Casio WSD-F20A

 
M400
One
ZenWatch 3
M430
WSD-F20A
 PolarM400Remove Buy NowFitbitOneRemove Buy NowASUSZenWatch 3Remove Buy NowPolarM430Remove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$200$100$229$255$399
Release20142012201720172018

Activity & Fitness

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

Battery

Duration8 hours to 30 days10-14 days48 hours30 hours1 day
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a400 x 400128x128320 x 320
Sizen/an/a1.39 inches1.4 inch1.32 inches
Touch
Typen/aOLEDAMOLEDLCDLCD

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATMSplast ResistantWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid Wear 2Wear OS
Apps
Music

All Wearables