Huawei Talkband B2 vs. Polar Loop 2 vs. Michael Kors Grayson vs. Fitbit Charge vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Talkband B2
Loop 2
Grayson
Charge
Grayson
T-Rex
 HuaweiTalkband B2Remove Buy NowPolarLoop 2Remove Buy NowMichael KorsGraysonRemove Buy NowFitbitChargeRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$180$120$350$130$350$140
Release201520152018201420182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration3 days8 days (without notifications)24 hours7-10 days24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution128 x 88n/a453 x 454NA453x454360 x 360
Size0.73 inchesn/a1.39 inchesNA1.39 inches1.3 inches
TouchNA
TypePMOLEDLEDAMOLEDOLEDAMOLEDAMOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP572 ATM1 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aAndroid WearNAAndroid WearBuild-in
Apps
Music

All Wearables