Polar V800 vs. Polar Loop 2 vs. Amazfit Arc vs. Garmin 645 Music vs. Amazfit GTR

 
V800
Loop 2
Arc
645 Music
GTR
 PolarV800Remove Buy NowPolarLoop 2Remove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$470$120$69.99$450$199
Release20142015201620182019

Activity & Fitness

Calories
Cycling (Bicycling)n/a
Distance
Heartn/an/a
Oxygen
Sleep
Steps
Swim

Battery

Duration13 hours to 30 days8 days (without notifications)20 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a72 x40240 x 240454 x 454
Sizen/an/a0.42 inches1.2 inches1.39 inches
Touch
Typen/aLEDOLEDMIPAMOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMIP675 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-in
Apps
Music

All Wearables