https://circaring.com/ daily https://circaring.com/products/circa-smart-ring 2026-09-24T06:04:55-04:00 daily https://cdn.shopify.com/s/files/1/0856/9107/2754/files/circa-ring-black.png?v=1790224038 CIRCA Smart Ring — Heart Rate, SpO2 & Sleep Tracking (Charging Case Included) CIRCA smart ring, black