Polar M430 vs. Garmin 645 Music vs. Amazfit GTS vs. Apple Watch 8 vs. Fitbit Sense 2

 
M430
645 Music
GTS
Watch 8
Sense 2
 PolarM430Remove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTSRemove Buy NowAppleWatch 8Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$255$450$150$499$300
Release20172018201920222022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration30 hours7 days14 days18 hrs6 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128x128240 x 240348 x 442340 x 272 or 390 x 312336x336
Size1.4 inch1.2 inches1.65 inches1.5 inches or 1.65 inches1.59 inches
Touch
TypeLCDMIPAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWR305 ATM5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemWear OSWatchOS 9
Apps
Music

All Wearables