Electrocardiography (ECG) is a safe, noninvasive test with a history of more than a hundred years of use. A physician can judge whether a person is healthy by virtue of the ECG waveform. According to statistics from the World Health Organization (WHO), cardiovascular disease (CVD) is number one among the ten major causes of death globally, and the probability of CVD increases with age for office workers with irregular lifestyles and for obese people. People know about their health because of physiological signals, and there is a close relationship between CVD and blood pressure. The most common method currently is self-health monitoring by measuring blood pressure with a home hematomanometer. However, it may be inconvenient to measure blood pressure with a traditional hematomanometer, and it may be especially difficult if blood pressure needs to be measured under dynamic conditions. In this study we aimed to measure blood pressure with a wearable 2-point ECG device and to monitor the most obvious characteristics of QRS (ventricular depolarization) duration and change in blood pressure to enable health monitoring at any time.