The Fitbit Charge 6, the latest addition to Fitbit's lineup of fitness trackers, has introduced a significant advancement in health monitoring with its built-in blood oxygen saturation (SpO2) feature.

Smartphones are already capable of some neat health-centric tricks. From step counting and sleep tracking to measuring pulse and respiration rate, the phone in your pocket is quite a powerful-health ...

Oura has finally added SpO2 measurements to its Oura Ring 3 – as the final promised features land on the device. The Oura 3 launched way back last year, but some of its core features were delayed – ...