Blood pressure, fertility or covid: the medical revolution of watches, your closest doctor

Blood pressure, blood oxygen saturation, heart rate, sleep quality, calories you lose... Watches have long ceased to be simple watches to become your best allies to have an iron health. Some functionalities that have even served to save lives and that, on many occasions, save a visit to the doctor. Now, Apple is also thinking of incorporating a thermometer in its 2022 version of the Apple Watch to know which days you are most fertile. But how many functionalities do these types of watches have today? Can they be used to give us a medical check-up without getting up from the sofa at home?

In addition to the already classic functions that are presupposed to a smart watch, more and more new ones are being incorporated, especially related to health and biomedical parameters. In short, this is what you can find in some smartwatches like the Apple Watch Series 6, the Samsung Galaxy, the Galaxy Watch 4, the Huawei Watch GT 2 Pro and some like the ASUS VivoWatch BP.

Blood pressure

Some reports inform that the Apple Watch that they present in 2022 will have built-in sensors to be able to measure blood pressure through sensors that evaluate the blood pressure in the arteries. However, at the moment the one that most prominently has this function is the ASUS version and the Galaxy Watch 4, which thanks to its technology and integration with the app allows you to see the voltage reliably at all times.


In the United States it arrived before in Spain but, for a few years, this function that is incorporated in the Apple Watch is also available in our country. It emulates, directly, an electrocardiogram, like the one that can be done in the doctor's office but without leaving the house and without having to be surrounded by cables. The ECG app on iPhone will tell you if your heart rhythm shows symptoms of atrial fibrillation (a type of serious cardiac arrhythmia) or sinus rhythm, which indicates that your heart is beating normally. In Galaxy Watch 4 devices, thanks to the Samsung BioActive sensor, these heart data can also be checked.

blood oxygen

Tensión arterial, fertilidad o covid: la revolución médica de los relojes, tu médico más cercano

One of the new functions that appeared in Apple devices last year was to measure blood oxygen. Possibly no one would have worried about this parameter until the coronavirus arrived and the pandemic and blood oxygen became one of the typical measurements that doctors made to know the status of patients with covid-19. According to those from Cupertino, this meter "helps you understand if your body absorbs the necessary oxygen and how it distributes it." Of course, "they are not intended for medical use, self-diagnosis or professional consultation, and have only been designed to take care of well-being and physical fitness in general."


According to the latest leaks, Apple could also be thinking of incorporating a sensor to measure when a woman is more fertile. She would do it through body temperature. However, other smart watches already have the temperature function, although not with that specific objective but simply to detect possible changes in health status through this parameter.


Virtually all self-respecting smartwatches come standard with this feature. With it you will be able to know your stress levels based on the number of beats per minute that your heart makes. In addition, on many occasions they notify you if they detect an unusual frequency because you are at rest and should have fewer beats per minute.

Physical activity

Smart watches, as you can see, are no longer just for telling the time, but a range of great possibilities opens up, including a multitude of options to monitor physical activity. In this way, you will be able to see the steps you have taken, the kilometers traveled, the time you have used to complete each kilometer or your heart rate based on the effort made. In addition, thanks to the heart rate monitors, cases of covid-19 could even be prevented.


The monitoring not only stays when you are awake, but while you sleep the sensors continue to collect information to analyze how your journey with Morpheus has gone. In this way, they can capture what the phases of your sleep are, how your breathing has been while you slept, if you have woken up between dreams or snoring patterns to detect possible apneas.

GPS for parents

Finally, another of the most interesting functions for people over 50 is the GPS and geolocation option. Not for them, but for their parents. To always have them under control, especially if they begin to have problems of disorientation or memory loss and you want to avoid frights. Through GPS and apps to keep track, you can see where they are at all times, with special attention to the times when they go out for a walk.