This sub-category would appear to be somewhat moribund to the extent that I hadn’t noticed it before. I would hope Samsung have plans for a formal capability suggestion procedure but I haven’t heard anything yet, so …
I note the existence of ‘Body Weight Measurement’ (and also BMI) as a ‘proposed’ capability for the ‘new’ environment though sadly it isn’t also listed in the capabilities for the Classic app. I guess that might mean I can’t actually exploit it yet? There are a number of health and fitness metrics that could prove useful, and one leaps out as being of obvious use now, given the devices already out there.
So category Blood Pressure Measurement would be my suggestion, with the attributes systolic and diastolic using the units mmHg (and any others that might exist out there that I am not familiar with).
I’d also suggest heartRate as an attribute but I guess that should probably be a separate Heart Rate Measurement capability,