Smart rings are now available from various manufacturers; werecently tested a model from Blaupunkt.The range of functions of smart rings usually focuses heavily on sensor technology and thus the tracking of vital data. The Y-RING, on the other hand, is said to have additional features that significantly expand the ring's use in everyday life.

For example, the model comes with an NFC module, making the wearable suitable for contactless payment. This means that the smartphone or credit card can remain in your trousers at the checkout. The function is not only limited to payments; smart door locks, for example, could also be opened particularly easily and only by using the ring.

The ring also features special gesture control, which allows for the control of music playback with a double tap of the finger, for example, or taking photos or turning the page while reading an e-book. Another important aspect of the ring is its high durability: the outer part of the ring is made of titanium and, according to the specs, the Y-RING is waterproof up to a test pressure of 10 ATM and can so be worn whilst swimming.

A temperature sensor, a heart rate sensor and an acceleration sensor are on board and blood oxygen saturation measurement is also said to be possible. Stress levels and sleep quality can be analyzed. Lastly, the battery life is said to be up to one week.

The ring is currently available on Kickstarter at a price starting at $179, which is not an unreasonable price. The ring is due to be shipped from September, but potential backers should be aware of the high financial risks involved in supporting crowdfunding campaigns.