Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Flex vs. Pebble Core vs. Polar Loop vs. Michael Kors Grayson

 
Loop 2
Grayson
Flex
Core
Loop
Grayson
 PolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$350$100$99$100$350
Release201520182013201620132018

Activity & Fitness

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

Battery

Duration8 days (without notifications)24 hours5 daysNA5 days24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NANANA453x454
Sizen/a1.39 inchesNANANA1.39 inches
TouchNANA
TypeLEDAMOLEDLEDNALEDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM1 ATM1 ATMNA2 ATM1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNANANAAndroid Wear
Apps
Music

All Wearables