I have been using it for several days now, and the battery has only dropped by 20%. What surprises me is that it is different from the air pump watch i purchased before. When using the air pump to measure blood pressure, it feels as strong as using professional equipment in the hospital. Of course, i have also checked its data through medical equipment, and the results are very accurate and reliable. I plan to buy another watch to give to my father. It's great! ?? ?? ??

The package arrived well protected and sealed, the truth the watch is beautiful, it has no detail of imperfection and it is such that the description. The screen looks very sharp and the system goes smooth as well as the connection to the application is stable. I have no complaints, so far all the tests i have done have been good and measure the health issue well. It's worth the watch and the store very reliable.