There is no way to calibrate the device. I tested it against two different blood pressure machines multiple times, and the readings are significantly off. My body temperature is consistently measured at 37°C with different thermometers, but the device shows 36°C. I am very disappointed. This product feels cheap and ineffective.
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We are focusing on the technical innovative form of a wrist watch which is a wearable blood pressure monitor with fashion designs. BP Doctor syncs all your activity and body condition data in App automatically, graphing them into charts, which helps you have a better understanding of your body.
