Polar Loop 2 vs. Fitbit Flex vs. Pebble Core vs. Fitbit Versa 2 vs. Michael Kors Access Sofie HR

 
Loop 2
Flex
Core
Versa 2
Access Sofie HR
 PolarLoop 2Remove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowFitbitVersa 2Remove Buy NowMichael KorsAccess Sofie HRRemove Buy Now

Basic Info

Suggested Price$120$100$99$199$395
Release20152013201620192019

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 daysNA5 days2 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA300 x 300390 x 390
Sizen/aNANA1.34 inches1.19 inches
TouchNANA
TypeLEDLEDNAAMOLEDOMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATMNA5 ATM0.3 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNANABuild-inWear OS
Apps
Music

All Wearables