I also question it’s accuracy - I have had several doctors tell me the wrist cuff ones regularly read 10 points high, and many cheap ones are just almost random of 20 points so rather unreliable. I have also seen that in personal use, and taken several to the Dr Office to be tested. I don’t like it, and I wish it was different, but the only brand and type recommend by my current Doctor is an upper arm style from Omron.
I also question it’s accuracy - I have had several doctors tell me the wrist cuff ones regularly read 10 points high, and many cheap ones are just almost random of 20 points so rather unreliable. I have also seen that in personal use, and taken several to the Dr Office to be tested. I don’t like it, and I wish it was different, but the only brand and type recommend by my current Doctor is an upper arm style from Omron.