If you haven’t already guessed, we’re talking about the Oura Gen3 Horizon Smart Ring, currently discounted to £165 (saving you 34%) on Amazon UK.

According to the complaint filed in U.S. District Court for the Northern District of California, Bal was an early investor in Oura, as well as serving as the company’s “primary marketing arm” in its early years as a cash-strapped start-up.

First came the Oura Ring, which was followed by, most notably, the Ultrahuman Air Ring. After working as a health and fitness journalist for over a decade, I’ve had the privilege of testing dozens of fitness trackers for myself—and tracker rings quickly became my favorite way to collect consistent health data.

A potential Oura Ring 5 may be a long way out, but I'm already hoping for these key features and improvements.