Fitbit Flex 2 vs. Michael Kors Grayson vs. Pebble Core vs. Polar A370 vs. Michael Kors Grayson vs. Garmin VivoActive 4

 
Flex 2
Grayson
Core
A370
Grayson
VivoActive 4
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowPebbleCoreRemove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$350$99$179.95$350$349
Release201620182016201720182019

Activity & Fitness

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

Battery

Duration5 days24 hoursNAUp to 3 days24 hours8 days
Rechargeable

Compatibility

Android
iOSNA
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454NA160 x 80453x454260 x 260
Sizen/a1.39 inchesNA1.18 inches1.39 inches1.3ionches
Touchn/aNA
TypeLEDAMOLEDNATFT LCDAMOLEDMIP

Functions

Audio Speaker
Clock
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNAWR301 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNAAndroid WearWear OS
Apps
Music

All Wearables