HRM_RAW - IR and R: Which watches have these sensors?

Which watches report back IR and R light intensity in the HRM_RAW sensor?

I’m aware that Galaxy Watch Active 2 and Galaxy Watch 3 both have these sensors for SpO2 measurement. Do they both give developers access to data from them?

Are there any other watches that have IR/R sensors?

What language are you using. Search for sensor API It will show you what sensors are available in what platform. However, it will not give you access to Samsung Health you would have to create your own algorithm.

Samsung Developer Program