Assembling the Rings

Emotion load indication through electrodermal activity or skin conductance measurement is a rising trend in the modern wearable technology. Most manufacturers use the word stress as a synonym for emotional load.
Wearables are typically forced to use dry skin electrodes in varying conditions, with movement present. Ideally the system should be able to detect, interpret and visualize underlying electrodermal activity changes caused by autonomous nervous system reactions.
Typically the following challenges are present:
• Dry and sweaty hands produce autonomic responses with significantly different amplitudes
• Different people produce significantly different response amplitudes
• Analysis is subject to constant motion artifacts
The Moodmetric algorithm is developed to produce higher lever emotional information of the wearer, based on the raw conductivity signal received.


The first Moodmetric rings have been produced. The ring is improved version of the beta sample, that has been in user testing since October 2014. The electronics manufacturing and 3D-printing of the covers of the new version was made in August 2015. The stone assembly could now be completed:



The two steel rings with an insulation in between is the actual sensor needed to detect the changes in skin conductivity. The ring comes in four sizes: US (6.5, 8, 10 and 12.5), EU (17, 18,5, 20 and 22 mm). It is exchangeable which enables several users to the same stone. This reduces cost but note: excessive swapping causes the snaps to wear out.


The final product is small and lightweight. It connects with the Moodmetric app automatically and displays your emotional intensity real-time.


Moodmetric Software Development Kit now available

Moodmetric now offers you the opportunity to include ring support in your own app. Emotional intensity tracking provides unique data to be used in applications only limited by imagination:

  • digital health

  • product marketing, product testing

  • music

  • entertainment

  • gaming

  • dating…

The data available for developers is based on the Moodmetric number, ranging from 0 to 100 and describing how strongly the wearer of the ring is feeling.

Moodmetric offers a beta license of our software development kit free of charge until release of the final licence. An interface is documented directly to the ring to make sure that you can run your application on any platform, as long as it supports Bluetooth 4.0. We provide full documentation for the interface and also example applications for iOS and Android. We also provide technical support to help you get going.

Some features in more detail (you will have the full description in the SDK package)

– The MM number notification tells if the person is very stressed or emotionally loaded. High MM notification is issued when MM number is elevated for over 5 minutes.
– The Relax notification tells if the person has successfully managed to relax for example in a meditation exercise. Relax notification is issued when MM number is low for over 5 minutes. This feature requires a ring with application version of 1.0.1 or above.
– The strong reaction notification tells if a strong emotional reaction has been detected at a certain moment. You can test responses e.g. to images and sounds.

Apply for a licence through the SDK form on our site/contacts or at [email protected]


Moodmetric features: Scope and Wearing the ring

MoodScope curve

Scope tells about the instantaneous reactions of the wearer. When you feel something, your autonomous nervous system reacts and small changes can be measured from your skin.

The Moodmetric Ring detects the changes that can be followed online with the smartphone app. All the reactions cause an upward jump on the Scope, the bigger the emotion, the higher the curve goes. The physical response delay is 1.5 seconds, so the jump is visible 1.5 s after seeing a ghost… Continue reading “Moodmetric features: Scope and Wearing the ring”

Emotional intelligence

Emotional intelligence is the ability to monitor one’s own and other people’s emotions, to discriminate between different emotions and label them appropriately, and to use emotional information to guide thinking and behavior.

Friendliness, empathy and striving to understand the thoughts of others is natural to us as humans as we do not develop without social relationships.

Recent research shows that emotions are more important to both individuals and societies than previously thought.

Emotions are needed for:

– when under threat (fear, suspicion)

– when there is a need to stand up for oneself or others (anger, furiosity)

– prioritising tasks and people (liking, dislike, irritation)

– making right decisions (we are at our sharpest when emotional charge is biggest)

– improving memory (all positive feelings)

– to connect with others (love, caring)

Emotional intelligence was first brought up in scientific discussion by American researchers Peter Salovey and John Mayer. It became widely known with a book by Daniel Goleman, published in 1995: Emotional Intelligence – Why it can matter more than IQ.

Emotions reveal how you are doing

People tend to start analysing themselves and their behaviour most often within a state of crisis, not after a pondered decision. When the surroundings became unbearable and the person can no longer adapt, an analysis process starts. During this anguish hasty decisions are made that might be regretted afterwards: getting a divorce, quitting a job, selling the house.

On the other hand, positive decisions often follow when one´s feelings are analysed with intelligence. This thinking can be improved by literature, courses or discussions with people trained on the subject.

Analysis of one´s feelings need to take into consideration both the physical and mental dimension. What happens when I get furious? Do I feel like bursting to pieces? What about when I feel happy – how does that feel? Regulation of feelings means the possibility to knowingly affect how long and how strong the feeling is. We can get rid of, or reduce the power of unpleasant feelings and find ways to increase the occurrence of positive ones.

Feelings need to be felt, not suppressed. However, understanding one´s feeling mechanism the emotions can be tackled when they are just about to rise to the surface: Do I let myself get raving mad now?

Emotional intelligence does not equal logic-rational thinking: a person might be a famous mathematician and still unable to start a discussion with a stranger. Western thinking inclines to recognise only certain types of intelligence and this is enforced in schools. A Pre-schooler would name a housewife as an example of an intelligent person, later possibly a director of a big company.

What are the benefits of developing one´s Emotional intelligence?

– understanding emotions of yourself and others

– reacting correctly in social interaction

– coping in surprising or unpleasant situations

– finding concensus

– building a better life with your partner

– helping development of your children´s socio-emotional skills

A high performing person needs a wide set of skills and emotional intelligence is a powerful tool in pursuing any goal.

Based on a book by Mikael Saarinen, Marja Kokkonen: Tunneäly (Emotional intelligence)


How can the Moodmetric ring support development of Emotional intelligence?

Recognizing feelings can start with the help of the Moodmetric ring.  Simply by understanding the moments of the day when emotions are the strongest and calmest can help in building emotional intelligence. The Moodmetric ring shows current emotional state and records your emotional past for later review. Understanding how certain times of the day or situations affected your emotional levels help towards further development of emotional intelligence.