Polar V800 vs. Polar Loop 2 vs. Amazfit Arc vs. Garmin 645 Music vs. Fitbit Alta HR

 
V800
Loop 2
Arc
645 Music
Alta HR
 PolarV800Remove Buy NowPolarLoop 2Remove Buy NowAmazfitArcRemove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy Now

Basic Info

Suggested Price$470$120$69.99$450$150
Release20142015201620182017

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 days7 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 240128 x 36
Sizen/an/a0.42 inches1.2 inches1.4 inches
Touch
Typen/aLEDOLEDMIPOLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance3 ATM2 ATMIP675 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/a
Apps
Music

All Wearables