Polar M400 vs. Moov Now vs. Casio WSD-F20A vs. Jawbone UP2 vs. Apple Watch Series 4

 
M400
Now
WSD-F20A
UP2
Watch Series 4
 PolarM400Remove Buy NowMoovNowRemove Buy NowCasioWSD-F20ARemove Buy NowJawboneUP2Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$79$399$100$329
Release20142015201820152018

Activity & Fitness

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

Battery

Duration8 hours to 30 days6 months1 day7 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 320NA384 x 480
Sizen/an/a1.32 inchesNA1.78 inches
Touchn/aNA
Typen/an/aLCDNAMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibrationn/a
Voice

Hardware

Accelerometer
Barometer or Altimetern/a
Ultraviolet Sensor
Water Resistance3 ATMn/a5 ATMSplash resistantNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSNAWatch OS 5
Apps
Music

All Wearables