Samsung Gear S2 vs. Polar M430 vs. Garmin 645 Music vs. Apple Watch 7

 
Gear S2
M430
645 Music
Watch 7
 SamsungGear S2Remove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$300$255$450$429
Release2015201720182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days30 hours7 days18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360128x128240 x 240396 x 484
Size1.2 inches1.4 inch1.2 inches1.9 inches
Touch
TypeSuper AMOLEDLCDMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68WR305 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenWatchOS 8
Apps
Music

All Wearables