Samsung Gear S2 vs. Polar M430 vs. Garmin 645 Music vs. Samsung Galaxy Watch

 
Gear S2
M430
645 Music
Galaxy Watch
 SamsungGear S2Remove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy NowSamsungGalaxy WatchRemove Buy Now

Basic Info

Suggested Price$300$255$450$330
Release2015201720182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days30 hours7 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/aNA
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360128x128240 x 240360 x 360
Size1.2 inches1.4 inch1.2 inches1.2 inches or 1.3 inches
Touch
TypeSuper AMOLEDLCDMIPAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68WR305 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenTizen OS
Apps
MusicSpotify

All Wearables