Don't want a smartwatch or fitness tracker? Consider a smart ring. These are the best smart rings available, including Oura Ring alternatives.

A monolithic MEMS-CMOS rangefinder using piezoelectric micromachined ultrasonic transducers (PMUTs) is presented. A dual-electrode PMUT design is used where the center electrode is driven externally ...

IT FEELS LIKE there are fitness trackers everywhere for you to help you stay on top of your health data, but Oura Ring stands ...

Get 15% off the Oura Ring 3 and Oura Ring 4 (newest model) during the final day of Prime Day today, in all shades and sizes.

As a longtime Apple Watch wearer, the idea of paying a premium for a device that tracks my health data but doesn't show me my notifications, let me stream my music on a run or even show me the time ...

Ultrasonic sensors are used across a variety of industrial areas, as they measure distance simply via calculating the difference of time between transmission and reception of signals. However, ...