Fitbit Zip vs. Michael Kors Grayson vs. Fitbit Charge 3 vs. Polar A370 vs. Michael Kors Grayson vs. Apple Series 6

 
Zip
Grayson
Charge 3
A370
Grayson
Series 6
 FitbitZipRemove Buy NowMichael KorsGraysonRemove Buy NowFitbitCharge 3Remove Buy NowPolarA370Remove Buy NowMichael KorsGraysonRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$60$350$150$179.95$350$399
Release201220182018201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration6 months24 hours7 daysUp to 3 days24 hoursNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Color
Resolutionn/a453 x 45466 x 18160 x 80453x454384 x 480
Sizen/a1.39 inches.721 inches1.18 inches1.39 inches40mm
Touch
Typen/aAMOLEDOLEDTFT LCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water ResistanceSplash Resistant1 ATM5 ATMWR301 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid WearWatchOS 5
Apps
Music

All Wearables