Most people wouldn't buy a smart ring for fitness tracking, and for good reason. They're fantastic, seamless options for passive health data, and surprisingly decent at step counts if you ignore the false positives from gestures. But for fitness tracking, pretty much every brand we've tested has given less-than-accurate results, to put it mildly.
So when Oura sold its new Oura Ring 4 as a better fitness option, with its Automatic Activity Detection and improved real-time HR data during workouts, I bullied our Oura reviewer into going for a run and working out to test this claim for himself.
