Polar Loop 2 vs. Fitbit Flex vs. Pebble Core vs. Apple Watch Series 4 vs. Michael Kors Access Runway

 
Loop 2
Flex
Core
Watch Series 4
Access Runway
 PolarLoop 2Remove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsAccess RunwayRemove Buy Now

Basic Info

Suggested Price$120$100$99$329$350
Release20152013201620182018

Activity & Fitness

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

Battery

Duration8 days (without notifications)5 daysNANot Yet1 day
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNANA384 x 480390 x 390
Sizen/aNANA1.78 inches1.19 inches
TouchNANA
TypeLEDLEDNAMicroLEDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATMNANot Yet3 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aNANAWatch OS 5Wear OS
Apps
Music

All Wearables