For the sake of health, it may become increasingly difficult for you to leave your smart wearable devices

The day when your watch will take you to the hospital is approaching.

The world's first portable electrocardiograph was an 85 pound backpack, and now a 10 gram patch attached to your chest can continuously transmit electrocardiogram information for two weeks without interruption. According to statistics, 100 million people wear the Apple Watch, which can send text messages to remind them when their heartbeat is irregular.

Now, wearable sensors on the arms, wrists, and fingers can report arrhythmia, blood glucose levels, blood oxygen, and other health indicators. A medical journal has also proposed a broader vision - wearable devices can monitor chronic disease patients without the need for frequent hospital visits. They can detect potential health hazards before stroke or diabetes occurs.

The two forces of health technology and wearable devices are moving towards integration. Apple (AAPL) and Alphabet (GOOGL), along with tech giants such as Google, are adding health features to their products. Medical technology experts such as electrocardiogram patch manufacturer iRhythm Technologies or blood glucose monitor manufacturers DexCom (DXCM) and Abbott Laboratories (ABT) are bringing their devices outside of clinics.

In the world of sensors, people start at the consumer end and hope to enter the healthcare field, "said Kevin Sayer, CEO of DeKang Medical." In healthcare, we are trying to tilt more towards consumers, and I think all of these things are colliding to some extent

Early bets favored tech giants, as every health-related news released by Apple, Google, or Samsung Electronics had an impact on healthcare technology stocks. But to change doctors' practices, continuous investment in clinical trials is also needed. Large tech companies have reduced their investments in healthcare. It now appears that medical technology experts will be at the forefront of the digital health revolution - smartwatches and smart rings will bring them more customers in need of diagnosis.

Blake Goodner, co-founder of Bridger Management, a hedge fund specializing in healthcare, said, "A group of medical technology companies focused on digital health are maturing, and they are reaching a scale that can not only be profitable, but also invest and compete with larger technology companies

Tech giants have not withdrawn from the health business. Apple's smart watch has an electronic heart rate sensor that can generate a single point ECG, a wrist temperature sensor, and an accelerometer that can detect severe falls. Billions of people are wearing smartwatches with health features from Apple or its competitors Samsung and Garmin.