“In some aspects, the consumer product includes one or more biosensors. This same Apple patent further describes: In some case, the signal is used to compute an additional health metric that includes one or more of: a heart function, a body fat estimate, and a body fat estimate.” In some embodiments, the device also includes at least one pair of electrodes disposed on an exterior surface of the housing. The health metric may include one or more of: a heart rate, a respiration rate, a blood oxygenation level, and a blood volume estimate. “ A second light source of the array of light sources may include an infrared LED adapted to detect water content of the body. If you review the original Apple Watch patent filing carefully that had Johny Ive as one of the inventors, you will be amazed at how much of the functionality originally planned for the Apple Watch is yet to come to fruition. Given the potential, it is no surprise that companies such as Apple have been also looking at incorporating a GSR sensor into the Apple Watch. Apple has been exploring the idea since the inception of the Apple Watch Research shows that skin temperature decreases in cases of stressful events from an average of 32 to 35 degree Celsius.īy combining the readings from the GSR and linking it with other heart rate metrics, Fitbit Sense is able to detect a meaningful Stress level indicator. The first is the electrodermal activity sensor that measures minute changes in skin conductance to measure stress levels and the second was the skin temperature sensor.īoth HRV(Heart rate variability) and skin temperature can be sensitive indicators of stress. The company’s wearable Zenta was expected to house GSR sensors that could help with tracking emotions and stress.Īlthough the UP3 or Zenta never made it big, GSR technology came back to the forefront one more time with the release of Fitbit Sense just this last year. The headliner in 2016/2017 was a London-based startup called Vinaya. Other wearable companies also tried the GSR route in the past. Interestingly, Jawbone Health raised $65 million in 2019 for the company’s new health ambitions. Unfortunately, in 2017 Jawbone went out of business and the founder, Hosain Rahman started a new company called Jawbone Health with some of the former employees. The plan was to release a whole set of over the air updates in 2015 to track moment-to-moment heart rate, respiration, hydration and galvanic skin response. Instead of simply relying on light sensors, the Jawbone UP3 was designed to send a small electrical current through the body and measures tissue’s resistance to it. Research showing Galvanic Skin response and detection of stress were becoming popular as early as 2012. 5 What can electrodermal sensing help with?.4 How does an electrodermal sensor exactly work?.
3 Novel Applications of Galvanic Skin Response Sensors.1 Long History of GSR Sensors on Wearables.
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