I bought a “vivosmart HR J”
the vivosmart HR is easy to know your heart rate when you ride.
because it’s type of watch. not Chest band.
vivosmart HR J.
J means Japanese Edition.
Here are inside of package. There are a watch, a charge cable and manuals.
This is watch. color is midnight bule.
Hear Rate monitering view.
You can see the HR graph last 4 Hours.
back side is like this. the sensor is green light!
garmin connect application is like this for HR.
Here is an another my blog related trekking blog written in Japanese:
GARMIN official site:
ATTENTION: This is not Japanese Edition!!