Polar M400 vs. Withings Activite Sapphire vs. Casio WSD-F20A vs. Motorola Moto 360 (1st Gen) vs. Mobvoi TicWatch S2

 
M400
Activite Sapphire
WSD-F20A
Moto 360 (1st Gen)
TicWatch S2
 PolarM400Remove Buy NowWithingsActivite SapphireRemove Buy NowCasioWSD-F20ARemove Buy NowMotorolaMoto 360 (1st Gen)Remove Buy NowMobvoiTicWatch S2Remove Buy Now

Basic Info

Suggested Price$200$450$399$150$180
Release20142014201820142019

Activity & Fitness

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

Battery

Duration8 hours to 30 days8 months1 day1 day2 DAYS
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 320320 x 260400 x 400
Sizen/a1.3 inches1.32 inches1.56 inches1.39 inches
Touch
Typen/aAnalogLCDLCDOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM5 ATM5 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSAndroid WearWear OS
Apps
MusicNA

All Wearables