Fitbit Flex 2 vs. Amazfit Arc vs. Michael Kors Grayson vs. Jawbone UP4 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Flex 2
Arc
Grayson
UP4
Grayson
T-Rex
 FitbitFlex 2Remove Buy NowAmazfitArcRemove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$69.99$350$200$350$140
Release201620162018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days20 days24 hoursNA24 hours20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a72 x40453 x 454NA453x454360 x 360
Sizen/a0.42 inches1.39 inchesNA1.39 inches1.3 inches
Touchn/aNA
TypeLEDOLEDAMOLEDNAAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP671 ATMNA1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid WearBuild-in
Apps
MusicNA

All Wearables