Polar M600 vs. Amazfit Arc vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Instinct

 
M600
Arc
645 Music
Alta HR
Instinct
 PolarM600Remove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$330$69.99$450$150$300
Release20162016201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days20 days7 days7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 24072 x40240 x 240128 x 36128 x 128
Size1.3 inches0.42 inches1.2 inches1.4 inches0.9 inches
Touchn/a
TypeTFTOLEDMIPOLEDOMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX8IP675 ATM10 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wear
Apps
Music

All Wearables