Fitbit Alta vs. Polar Loop 2 vs. Garmin 645 Music vs. Pebble Core vs. Michael Kors Access Sofie HR

 
Alta
Loop 2
645 Music
Core
Access Sofie HR
 FitbitAltaRemove Buy NowPolarLoop 2Remove Buy NowGarmin645 MusicRemove Buy NowPebbleCoreRemove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$130$120$450$99$395
Release20162015201820162019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heartn/a
Oxygen
SleepNA
Steps
Swim

Battery

Duration5 days8 days (without notifications)7 daysNA2 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a240 x 240NA390 x 390
Sizen/an/a1.2 inchesNA1.19 inches
Touchn/aNA
TypeOLEDLEDMIPNAOMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a2 ATM5 ATMNA0.3 ATM

Notifications

PhoneNA
Emailsn/aNA
TextsNA

Software

Operating Systemn/an/aNAWear OS
Apps
Music

All Wearables