Casio WSD-F20A vs. Michael Kors Grayson vs. Jawbone UP4 vs. Pebble Core vs. Polar Loop vs. Michael Kors Grayson

 
WSD-F20A
Grayson
UP4
Core
Loop
Grayson
 CasioWSD-F20ARemove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$399$350$200$99$100$350
Release201820182015201620132018

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration1 day24 hoursNANA5 days24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows PhoneNANANA
MacNANANA
WindowsNANANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 320453 x 454NANANA453x454
Size1.32 inches1.39 inchesNANANA1.39 inches
TouchNANA
TypeLCDAMOLEDNANALEDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNANA2 ATM1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating SystemWear OSAndroid WearNANANAAndroid Wear
Apps
MusicNA

All Wearables