Fitbit Flex 2 vs. Amazfit Stratos vs. Michael Kors Grayson vs. Fitbit Charge HR vs. Pebble Core vs. Michael Kors Grayson

 
Flex 2
Stratos
Grayson
Charge HR
Core
Grayson
 FitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge HRRemove Buy NowPebbleCoreRemove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$199$350$150$99$350
Release201620182018201520162018

Activity & Fitness

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

Battery

Duration5 days5 days24 hours5 daysNA24 hours
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300453 x 454NANA453x454
Sizen/a1.34 inches1.39 inchesNANA1.39 inches
Touchn/aNANA
TypeLEDOLEDAMOLEDOLEDNAAMOLED

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM1 ATMNA1 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aProprietaryAndroid WearNANAAndroid Wear
Apps
Music

All Wearables