The app records the result, timestamp, and your heart rate, allowing you to track trends over time in the Health app. Practical Considerations and Tips To ensure the best possible results, it is recommended to keep your watch clean and free of debris on the back sensors.
Apple Watch Oxygen Feature Comparison: Understanding SpO2 Measurement Capabilities
Apple Watch users frequently ask whether the device can measure blood oxygen levels, and the short answer is yes. You can see how your SpO2 levels correlate with sleep, activity, and elevation changes.
Background Measurements Beyond manual checks, the watch can take readings in the background while you sleep. Remove any debris or sweat from the back of the watch.
Apple Watch Oxygen Feature Comparison: A Detailed Breakdown
The back crystal of the watch houses four LEDs and four photodiodes that work together to emit light and measure reflections. This contextual data is valuable for understanding how your body responds to different environments and exertion levels.
More About Can apple watch measure oxygen
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