Samsung Gear S2 vs. Sony SmartWatch 3 vs. Polar M430 vs. Garmin 645 Music

 
Gear S2
SmartWatch 3
M430
645 Music
 SamsungGear S2Remove Buy NowSonySmartWatch 3Remove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy Now

Basic Info

Suggested Price$300$250$255$450
Release2015201420172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days2 days30 hours7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360320 x 320128x128240 x 240
Size1.2 inches1.6 inches1.4 inch1.2 inches
Touch
TypeSuper AMOLEDTFT LCDLCDMIP

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68IP68WR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenAndroid Wear
Apps
Music

All Wearables