Huawei Talkband B2 vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Jawbone UP2 vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Talkband B2
Grayson
Vivofit 4
UP2
Grayson
T-Rex
 HuaweiTalkband B2Remove Buy NowMichael KorsGraysonRemove Buy NowGarminVivofit 4Remove Buy NowJawboneUP2Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$180$350$79.95$100$350$140
Release201520182018201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration3 days24 hours1 year7 days24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 88453 x 45488 x 88NA453x454360 x 360
Size0.73 inches1.39 inchesNANA1.39 inches1.3 inches
TouchNA
TypePMOLEDAMOLEDNANAAMOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP571 ATM5 ATMSplash resistant1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables