Starting in March, the Google Fit app will receive an update with a feature capable of measuring heart rate and monitoring the user's breathing. The most curious thing about this functionality is that the feature will only work using the smartphone's camera, being implemented first in models of the Pixel line, manufactured by Google itself, but with the future objective of expanding to other smartphones that use the Android system.
To track heart rate, the user must use the smartphone camera to analyze the color of the fingers, applying a technique that uses color changes, based on scientific research photoplethysmography (PPG), where it is practically impossible to be perceived with the naked eye. .
To take advantage of the function in terms of breathing, the user must use the cell phone's front camera to frame the upper body and face. From there, the application system will be able to measure and determine the breathing rate based on the movement of the chest when breathing in and out. After the measurement, both functions allow saving the record so that the user can follow possible variations over time.
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It is efficient?
Google explains that this feature is useful for day-to-day monitoring, but that it should not be used as a medical diagnosis, as a number of interferences, such as skin tone, lighting and age, can be crucial to inhibit the accuracy of the test. result presented.
"While these measurements are not intended for medical diagnosis or to assess medical conditions, we hope they can be useful to anyone who uses the Google Fit app to monitor and improve their well-being on a daily basis."
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