I've tested dozens of smartwatches, but the Oura Ring 4 was first to show me I'm sick

Apple Watch Ultra 2 (left) with the Oura Ring 4 (center) and OnePlus Watch 3 (right) Matthew Miller/ZDNET I'm fortunate to have a strong immune system -- and I often frustrate my wife by refusing to acknowledge any signs of illness. But the Oura Ring 4 no longer lets me deny reality. Named ZDNET's 2024 Product of the Year, this wearable continues to prove its value every day. With so many smartwatches to test, I always wear one on each wrist, along with a smart ring. Yesterday, I had an Apple Watch Ultra 2 on one wrist, a Garmin Fenix 8 on the other, and the Oura Ring 4 on my left ring finger. Of them all, only Oura's smartphone app, with its Symptom Radar, clearly alerted me that something was off. Also: Why Oura Ring 4 is ZDNET's product of the year - besting Samsung, Apple, and others in 2024 The symptom radar stated that there were major signs of something straining my body, with my biometrics under strain. My body temperature and respiratory rate were slightly elevated, and my ... Read full article.