The wearable-tech company Ultrahuman has debuted the Rare smart ring, which is hand-crafted with 18-karat gold and platinum.

Enter: the smart ring. Appearing as a regular ring, they are actually filled with sensors and technology that make tracking your steps, sleep, heart rate, body temperature, and other vitals super ...

With sensors that track motion, skin temperature, and heart rate, the ring can assess everything from your stress levels to the quality of your sleep. Using the data it collects, the wearable can ...