The Moodmetric smart ring measures electrodermal activity. All the trackers have at least one accelerometer which is used for, for example, counting steps. Most of the technology is centered on measuring heart rate or heart rate variability. Smart wristbands, smart watches and smart rings measure physiological signals. The Moodmetric series of articles explains in more detail the scientific validation of the methods and tools used, and how the Moodmetric measurement can be applied in, for example, field research. Read more about the measurement accuracy > It is also a reliable tool for measuring personal well-being. This is a very good result for a research device.Īccording to these studies, the Moodmetric smart ring is valid for research. When compared to laboratory devices, the signal accuracy of the Moodmetric measurement is 83%.

(Torniainen et al., 2015 Pakarinen et al., 2019) Both studies concluded that the accuracy of the signal produced by the Moodmetric smart ring is very close to that of laboratory devices. Two recent research studies have examined the quality of the Moodmetric measurement signal. This makes electrodermal activity (EDA) important from the stress measurement point of view. Eccrine glands are innervated by the sympathetic nervous system and they are part of the fight or flight response system. The first findings were done already ten years prior by a French therapist Vigouroux.Įlectrodermal activity is improved when eccrine sweat glands form sweat on the surface of the skin. The connection between psychological factors and skin conductivity was found almost simultaneously by a French neurologist Féré (1888) and a Russian physician Tarchanoff (1889). Electrodermal activity (EDA)Īlso: galvanic skin response (GSR), skin conductance response (SCR) Full benefit of the ring can be achieved also without login. There is a possibility to login to the Moodmetric cloud service and upload your personal data, but this is not mandatory. There is no need to login to the app nor transfer data to the internet. The Moodmetric app is clear and robust on both iOS and Android devices. The phone does not need to be with you, you can transfer data any time, for example in the mornings and evenings.

It shows what increases and decreases stress levels. The stress level fluctuations can be followed in different situations with the app. The measurement happens in real time and the measurement result is seen on the screen of a smartphone immediately. Using the Moodmetric smart ring is easy and it can be deployed in only a few minutes. The Moodmetric smart ring is a research device and it was developed to respond to researchers´ needs. The Moodmetric smart ring was developed for measuring electrodermal activity accurately in a convenient, wearable form. Measuring electrodermal activity with the Moodmetric smart ring

Galvanic skin response sensor wearable