Fitbit One vs. Michael Kors Grayson vs. Apple Watch Series 4 vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Fitbit Sense 2

 
One
Grayson
Watch Series 4
Grayson
T-Rex
Sense 2
 FitbitOneRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch Series 4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$100$350$329$350$140$300
Release201220182018201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days24 hoursNot Yet24 hours20 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454384 x 480453x454360 x 360336x336
Sizen/a1.39 inches1.78 inches1.39 inches1.3 inches1.59 inches
Touch
TypeOLEDAMOLEDMicroLEDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant1 ATMNot Yet1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearWatch OS 5Android WearBuild-in
Apps
Music

All Wearables