Fitbit Flex 2 vs. Michael Kors Grayson vs. Jawbone UP4 vs. Jaybird Reign vs. Michael Kors Grayson vs. Amazfit GTS

 
Flex 2
Grayson
UP4
Reign
Grayson
GTS
 FitbitFlex 2Remove Buy NowMichael KorsGraysonRemove Buy NowJawboneUP4Remove Buy NowJaybirdReignRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$100$350$200$150$350$150
Release201620182015201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days24 hoursNA5 days24 hours14 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a453 x 454NANA453x454348 x 442
Sizen/a1.39 inchesNANA1.39 inches1.65 inches
Touchn/aNANA
TypeLEDAMOLEDNALEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATMNANA1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNANAAndroid WearWear OS
Apps
MusicNA

All Wearables