Polar A360 vs. Apple Watch Series 2 vs. Garmin 645 Music vs. Garmin Vivoactive 3 vs. Apple Watch Series 4

 
A360
Watch Series 2
645 Music
Vivoactive 3
Watch Series 4
 PolarA360Remove Buy NowAppleWatch Series 2Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivoactive 3Remove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$269$450$299$329
Release20152016201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days18 hours7 days7 daysNot Yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution160 x 80340 x 272 or 390 x 312240 x 240240 x 240384 x 480
Size1.18 inches1.5 inches or 1.65 inches1.2 inches1.2 inches1.78 inches
Touch
Typen/aAMOLEDMIPMIPMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305ATM5 ATM5 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWatch OS 5
Apps
Music

All Wearables