Samsung Gear S vs. Fitbit One vs. Michael Kors Grayson vs. Jawbone UP4 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Gear S
One
Grayson
UP4
Grayson
T-Rex
 SamsungGear SRemove Buy NowFitbitOneRemove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$250$100$350$200$350$140
Release201320122018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Durationn/a10-14 days24 hoursNA24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/aNA
Windowsn/aNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution480 x 360n/a453 x 454NA453x454360 x 360
Size2 inchesn/a1.39 inchesNA1.39 inches1.3 inches
TouchNA
TypeSuper AMOLEDOLEDAMOLEDNAAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP67Splast Resistant1 ATMNA1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aAndroid WearNAAndroid WearBuild-in
Apps
MusicNA

All Wearables