Ultrahuman Ring

Ultrahuman Ring Pro (2026) For anyone who hates charging. The ring is rated at about 12 days in its fuller tracking mode and up to 15 in its lighter one, one review got a comfortable 10, and the included charging case is rated for up to 45 days of combined battery life and stores a year of data if you forget to sync. At $479 in the US with that case and no required subscription, it is close to Oura's two-year cost but front-loaded; atrial fibrillation detection is a small monthly add-on. The trade-off is bulk: 3.3 to 4.8 grams across sizes 5 to 14, heavier than the slimmest rings here. US buyers should know Oura has filed new patent claims against it, though it stays on sale for now.