Changes

: I'm not sure I fully understand. You mean that in some cases there's no actual PPG readings and it just uses the accelerometer-data to make a guess for the heart rate? Do you have an example of that? I know that most wearables that use PPG take movement into account but rather in order to remove the noise/artifacts that are introduced in the readings as a result of moving the arm. In that case I wouldn't say it's 'guessing'? - [[User:Gedankenstuecke|Gedankenstuecke]] ([[User talk:Gedankenstuecke|talk]]) 12:31, 1 July 2022 (UTC)

: I'm not sure I fully understand. You mean that in some cases there's no actual PPG readings and it just uses the accelerometer-data to make a guess for the heart rate? Do you have an example of that? I know that most wearables that use PPG take movement into account but rather in order to remove the noise/artifacts that are introduced in the readings as a result of moving the arm. In that case I wouldn't say it's 'guessing'? - [[User:Gedankenstuecke|Gedankenstuecke]] ([[User talk:Gedankenstuecke|talk]]) 12:31, 1 July 2022 (UTC)

:: yes and yes All those bands which do not register any heart rate increase if the one hand they were on was held still. I have run into at least 3. If you want one like that just search smartwatches on amazon. I suppose the expensive new wearables do the "help ppg out with accelerometry" thing and that is not at all what I am talking about.

:: yes and yes All those bands which do not register any heart rate increase if the one hand they were on was held still. I have run into at least 3 ex miband 3. If you want one like then just search for cheap smartwatches on amazon. I suppose the expensive new wearables do the "help ppg out with accelerometry" thing and that is not at all what I am talking about.