This ring is actually a functioning alarm clock! You wear it on your finger like any other ring. It vibrates at the time you set (there is a charging cradle that lets you pick the specific alarm time) to wake you up or remind you of something. This is a handy tool for the hearing-impaired, people who live with someone who sleeps in, or a student who needs to be woken up from their in-class naps! Hehe. (They’d probably also need some “I’m awake” glasses to make the ruse work.)
The ring designer is Meng Fandi.
Check out this alarm ring from this link to Yanko design.