Hypertension is one of the commonest diseases of the world. And it takes millions of the life every year through cardiovascular diseases.
Regular measurement is important to prevent disastrous results. But it is difficult for many people to take a minute to stay with their arm in the cuff.
Recently, researchers in the US were reported to have developed a prototype device to measure the blood pressure readings using a smartphone case. It can record the real-time data, according to the media.
ABC net: Blood pressure reading at your fingertip with smartphone prototype device
In real, blood pressure is easy to measure. A skilled physician can guess the value immediately after touching the vessel of the patient. But it costs quite high to reproduce such an expert's ability with a sensor.
Blood pressure measuring case will be realized in a couple of years. On the other hand, I expect this sensor will be equipped with a smartwatch. I believe the watch is more suitable than the cellphone because it can always be attached to a wrist. In the future, blood sugar, O2 saturation will be recorded with a smartwatch. This device will be able to send an emergency signal to an ambulance. Such future is approaching fast.