Polar Loop 2 vs. Fitbit Ionic vs. Casio WSD-F20A vs. Michael Kors Grayson vs. Pebble Core vs. Michael Kors Grayson

 
Loop 2
Ionic
WSD-F20A
Grayson
Core
Grayson
 PolarLoop 2Remove Buy NowFitbitIonicRemove Buy NowCasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$120$299$399$350$99$350
Release201520172018201820162018

Activity & Fitness

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

Battery

Duration8 days (without notifications)4+ days1 day24 hoursNA24 hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250320 x 320453 x 454NA453x454
Sizen/a1.421.32 inches1.39 inchesNA1.39 inches
TouchNA
TypeLEDOLEDLCDAMOLEDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance2 ATM50m5 ATM1 ATMNA1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aFitbit OSWear OSAndroid WearNAAndroid Wear
Apps
Music

All Wearables