Samsung Gear S2 vs. Polar M430 vs. Casio WSD-F20A vs. Garmin 645 Music

 
Gear S2
M430
WSD-F20A
645 Music
 SamsungGear S2Remove Buy NowPolarM430Remove Buy NowCasioWSD-F20ARemove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$300$255$399$450
Release2015201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days30 hours1 day7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360128x128320 x 320240 x 240
Size1.2 inches1.4 inch1.32 inches1.2 inches
Touch
TypeSuper AMOLEDLCDLCDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68WR305 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenWear OS
Apps
Music

All Wearables