Huawei Talkband B2 vs. Michael Kors Grayson vs. Garmin Vivofit 4 vs. Pebble Core vs. Michael Kors Grayson vs. Amazfit T-Rex

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

Basic Info

Suggested Price$180$350$79.95$99$350$140
Release201520182018201620182019

Activity & Fitness

Calories
Cycling (Bicycling)NA
Distance
Heart
Oxygen
SleepNA
Steps
Swim

Battery

Duration3 days24 hours1 yearNA24 hours20 days
Rechargeable

Compatibility

Android
iOSNA
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
PhoneNA
VibrationNA
Voice

Hardware

AccelerometerNA
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP571 ATM5 ATMNA1 ATM5 ATM

Notifications

PhoneNA
EmailsNA
TextsNA

Software

Operating Systemn/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables