Fitbit One vs. Fitbit Ionic vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. HTC re Grip

 
One
Ionic
Grayson
Watch Series 4
Grayson
re Grip
 FitbitOneRemove Buy NowFitbitIonicRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowHTCre GripRemove Buy Now

Basic Info

Suggested Price$100$299$350$329$350$199
Release201220172018201820182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days4+ days24 hoursNot Yet24 hours5 hours to 2.5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250453 x 454384 x 480453x454160 x 32
Sizen/a1.421.39 inches1.78 inches1.39 inches1.8 inches
Touch
TypeOLEDOLEDAMOLEDMicroLEDAMOLEDPMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant50m1 ATMNot Yet1 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSAndroid WearWatch OS 5Android WearNA
Apps
Music

All Wearables