Jake Peterson is Lifehacker’s Tech Editor, and has been covering tech news and how-tos for nearly a decade. His team covers all things technology, including AI, smartphones, computers, game consoles, ...

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.

Blood Oxygen is back for affected Apple Watch models. Will be reinstated with the latest iOS and WatchOS updates. Apple redesigned it to resolve an import ban over patent infringement. Get more ...

Blood oxygen levels refer to the amount of oxygen circulating in the blood. Normal blood oxygen levels fall between 75 and 100 millimeters of mercury (mm Hg) on arterial blood gas (ABG) test results.

Fingertip Blood Oxygen Monitors Are Less Accurate For People Of Color, Study Finds By Dennis Thompson HealthDay ReporterFRIDAY, Jan. 16, 2026 (HealthDay News) — Most everyone’s seen one in a doctor’s ...