I Tried the $300 Oura Ring That Kim K Is Obsessed With — Review | Allure
Updated Real-World Oura Ring Battery Life (Gen 3). TL;DR - SpO2 seems to have impact (1 day), but overall battery life still 5+ days, which is pretty good. : r/ouraring
Oura Ring Generation 3 review: so close to being perfect | Digital Trends