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

 
Flex 2
One
Grayson
Core
Loop
Grayson
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowPolarLoopRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$100$350$99$100$350
Release201620122018201620132018

Activity & Fitness

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

Battery

Duration5 days10-14 days24 hoursNA5 days24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/an/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a453 x 454NANA453x454
Sizen/an/a1.39 inchesNANA1.39 inches
Touchn/aNA
TypeLEDOLEDAMOLEDNALEDAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant1 ATMNA2 ATM1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/an/aAndroid WearNANAAndroid Wear
Apps
Music

All Wearables