The third-gen Oura Ring can now measure the oxygen levels in your blood

Oura, the company behind the Oura Ring lineup of wearable devices, today announced that blood oxygen sensing is rolling out to the third-generation Oura Ring. It’s a long time coming — Oura previewed the feature last fall. But Oura, asserting that the wait was worth it, says oxygen sensing will be able to deliver a “more comprehensive assessment of sleep health and physiology” to owners of its newest flagship product.
The third-generation Oura Ring measures blood oxygen, or SpO2, via red and infrared LED sensors that shine light into a wearer’s finger and use the

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