Is there a watch or chest band that records heart rate at 10 second intervals ?

I'm looking for a watch or chest band /app that records heart rate.

All I can find are averages per minute.

If my heart rate goes up to 150 bmp then down to 120 bmp 20 seconds later then the app or watch records the heart rate as about 130 bmp average for that minute ,but I want to know the real maximum heart rate during different times of the day.

So I wanted to know if there is a product that records at 10 second intervals that I can look back on at the end of the day and see at any point what my heart rate was ,not an average for the minute, but an average bmp for 10 seconds or less.

Is this possible from a watch or strap/app without getting medical equipment, thanks 

There are no answers yet.
Be the first to answer this question.