Fitbit Flex 2 vs. Michael Kors Grayson vs. Pebble Core vs. Polar A370 vs. Diesel On Full Guard 2.5 vs. Michael Kors Grayson

 
Flex 2
Grayson
Core
A370
On Full Guard 2.5
Grayson
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowPolarA370Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$350$99$179.95$325$350
Release201620182016201720182018

Activity & Fitness

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

Battery

Duration5 days24 hoursNAUp to 3 days4 days24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454NA160 x 80454x454453x454
Sizen/a1.39 inchesNA1.18 inches1.39 inches1.39 inches
Touchn/aNA
TypeLEDAMOLEDNATFT LCDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNAWR303 ATM1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNAWear OSAndroid Wear
Apps
Music

All Wearables