Blood Pressure

[DanTheGamer]

I am disappointed that blood pressure needs calibration every 30 days. I have a feeling it shouldn't be that often or it shouldn't be needed at all. 

[owisa]

I am actually scared. I think you must pray🙏.

[arianwen27]

Wrist based blood pressure isn't exact, the readings it gets is different for everyone. It needs a real monitor to calibrate to be able to link your readings to what the watch is reading. The watch doesn't know your blood pressure, more so, it can detect how much higher or lower it is than a known point. The known point is whatever it was calibrated at. Over time, it gets less and less accurate so needs calibrating every 30 days. The idea is people who need to know their blood pressure can quickly find it anywhere. But these people would already have a real blood pressure monitor. If you don't own a real monitor and don't have a medical condition that needs monitoring, it's not much more than a party trick. If you need to know your pressure, you'd have a real device. Not owning a real device means you don't really have a need to use the feature

[smiley]

In my opinion @arianwen27 is pretty much spot on.

To meet with the health regulations and authorities to offer such health benefits, the watch need to meet certain accuracy requirements.

To measure blood pressure like a conventional blood pressure monitor is not easy... of course there is no inflating band or a true measurement.

I believe the watch performs a simulated measurement of sorts... whilst a real measurement from a known source is taken at the same time during a calibration run ... and the watch algorithms then correlate these together. By doing this, then the watch can estimate fairly well what your blood pressure is with just the standard sensors. But this accuracy does worsen over a period of time.

I am someone that actually needs to monitor my BP regularly, and the watch allows me to check occasionally when I am 'out and about' and away from my real BP monitor... when using real equipment is not possible.

However, this shouldn't be expected to have the same accuracy as a conventional BP tester. But it does give a reasonable estimate and often the results from both the watch and the monitor are within a few of one another.

For these reasons alone, the calibration period is expected to be done monthly.

P.s. this is just my opinion from usage, perhaps I could be wrong with some of the factual info as I am just a user and not a medical professional.

Smiley.

[JAMES4578]

It is made clear that Samsung Smartwatches are not medical devices (or indeed any other) but with the Data gathered can offer useful insights. As mentioned though with Blood Pressure it is a simulated measurement but can be fairly accurate. Whilst they will become more advanced in the future hard to see the calibration element changing. Think a party trick is a bit of an exaggeration though 😉.