Bests & Worsts Reviews from Amazon

The main selling point of this product is the ability to easily take your blood pressure multiple times a day; and even at night when you sleep. It is not a smartwatch in the ordinary sense. I am a retired emergency room physician and have two other Omron products which have performed well over the years. Since Omron is a reputable manufacturer of medical products, I had great hopes for this blood pressure watch. In most ways, it performs as advertised, EXCEPT the blood pressure measurements are very inaccurate. Here are some test results I did on myself. Background - Watch was fully charged. It was set to use the right wrist and positioned on the wrist and tightened exactly as specified in the directions. The watch was carefully held at the level of the heart (this is especially important). To determine the actual blood pressure, I took two readings using a mercury manometer, arm cuff and a stethoscope to determine the actual blood pressure. This is generally considered the gold standard, short of using an invasive arterial line. The pulse was determined by simply taking my pulse, which is easy as a physician with many years of experience. Using this method, the true blood pressure and pulse was consistently: BP 122/60, P 56. Now using the watch as described above, several consecutive readings were taken: BP 103/51 P 56 BP 89/51 P 74 BP109/50 P 58 BP 92/45 P 54 BP 109/48 P 54 BP 88/45 P 45 BP 99/52 P 53 The numbers speak for themselves. In summary, I think this product is at best worthless and at worst dangerous. The fact that it has FDA approval, speaks poorly of both the FDA and Omron. Also, as a point of comparison, I have an old Omron Intellisense model HEM-711 that automatically measures blood pressure. It is remarkably accurate; rarely more that 1 or 2 mmHg off the actual value.