I am very satisfied with the purchase, I did not expect it to be so good, once you synchronize it with the phone, it seems to be a personal doctor, I can see all the health data from the watch, and can be this alert, health values appear abnormal, there will be a prompt on the phone, for my health has a great role, followed by blood pressure measurement, fast blood pressure and accurate measurement, I do not like the fast blood pressure, because the value I don't like the fast blood pressure, because the value of the difference is relatively large, accurate measurement has an inflatable bag, very accurate measurement of my value, but I measured in a small clinic results are similar. It took me a long time to choose a smart watch and I am very convinced and satisfied with my purchase.