accurate heart rate sensor

I am trying to measure heart rate in my project.I found some heart beat sensors like HW01 but it is like a hobby sensor , i want to do accurate heart rate measurement so suggest me some commercial level sensor used in wearables like fitbit. thank you.

What do you think determines "accuracy"?

Why do you think the HW01 won't be "accurate"?

krishnachaithanya126:
I am trying to measure heart rate in my project.I found some heart beat sensors like HW01 but it is like a hobby sensor , i want to do accurate heart rate measurement so suggest me some commercial level sensor used in wearables like fitbit. thank you.

For ages, people have been measuring heart beat by using their finger and a wrist watch or wall clock. I guess by accurate, you mean you might miss a beat. Is that what you mean?

Paul

Think that "commercial sensors" such as Fitbit's are better? There are challenges with their pulse ox approach (and Fitbit has been sued for misrepresenting how accurately its devices monitor the heart rate during physical activity).

If you want "accurate," use an ECG.