Pebble Steel vs. ASUS ZenWatch 3 vs. Michael Kors Grayson vs. Fitbit Flex vs. Polar A370 vs. Michael Kors Grayson

 
Steel
ZenWatch 3
Grayson
Flex
A370
Grayson
 PebbleSteelRemove Buy NowASUSZenWatch 3Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$150$229$350$100$179.95$350
Release201420172018201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5-7 days48 hours24 hours5 daysUp to 3 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Macn/a
Windowsn/a

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution168 x 144400 x 400453 x 454NA160 x 80453x454
Size1.26 inches1.39 inches1.39 inchesNA1.18 inches1.39 inches
TouchNA
Typee-paperAMOLEDAMOLEDLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM1 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSAndroid Wear 2Android WearNAAndroid Wear
Apps
Music

All Wearables