I enjoyed the writing style (maybe it's the mistrust of Windows). I'm currently wearing a cheap smart-watch (<£20) that I spotted on AliExpress (i.e. Chinese p

I enjoyed the writing style (maybe it's the mistrust of Windows). I'm currently wearing a cheap smart-watch (<£20) that I spotted on AliExpress (i.e. Chinese product) that unbelievably records biometrics such as blood pressure and blood lipid profiles. I was mainly curious about the uric acid measurements as I get the occasional attack of gout, but am curious as to whether it actually does measure anything like blood pressure. I've previously compared the blood glucose measurements by getting my diabetic brother (type 1) to wear it and compare it to a pinprick measurement - within 10% which is pretty much useless for medical usage.