I tested the Circular Ring 2 and wanted to love it, but the software got in the way
Circular Ring 2: One minute review The Circular Ring 2 is an ambitious smart ring. On paper, it has almost everything you need. Alongside standard health, recovery and sleep tracking, it offers features you won't find on many rivals, including electrocardiogram (ECG) readings and atrial fibrillation (AFib) detection. Circular is also promising blood pressure and blood glucose trend monitoring in future updates. At first glance, it feels like a genuine challenger to the likes of Oura, RingConn and Samsung. The ring itself looks good, feels lightweight on the finger and comes with a charging case, which is a welcome upgrade over the previous Circular model. Battery life is solid too, lasting around six days during my testing. But unfortunately, the day-to-day experience doesn't live up to that impressive spec sheet. (Image credit: Future / Becca Caddy) The biggest issue is the software. Sma...