Fitbit One vs. Apple Watch Series 2 vs. Michael Kors Grayson vs. Jawbone UP4 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
One
Watch Series 2
Grayson
UP4
Grayson
T-Rex
 FitbitOneRemove Buy NowAppleWatch Series 2Remove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$269$350$200$350$140
Release201220162018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days18 hours24 hoursNA24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a340 x 272 or 390 x 312453 x 454NA453x454360 x 360
Sizen/a1.5 inches or 1.65 inches1.39 inchesNA1.39 inches1.3 inches
TouchNA
TypeOLEDAMOLEDAMOLEDNAAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5ATM1 ATMNA1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSAndroid WearNAAndroid WearBuild-in
Apps
MusicNA

All Wearables