How the Apple Watch Measures Oxygen The technology behind the feature is relatively straightforward yet sophisticated. Avoid wearing the watch too tightly, as this can restrict blood flow and skew the reading.
Firmware Update Apple Watch Oxygen: What to Expect
Health App Integration All readings are automatically saved to the Apple Health app, where they can be viewed in detailed graphs. By reviewing the history, you can discuss patterns with a healthcare provider to determine if further investigation is necessary.
By analyzing how oxygenated and deoxygenated blood absorbs these specific wavelengths of light, the watch calculates a percentage that represents the oxygen level in your blood. If you are concerned about hypoxia or sleep apnea, the device can alert you to consistently low nighttime readings, prompting you to seek professional medical advice.
Firmware Update Apple Watch Oxygen: What’s New and How It Enhances SpO2 Tracking
The waveform perfusion index (PVI) is often displayed alongside the reading, indicating the signal strength. Since the release of the Apple Watch Series 6, the built-in Blood Oxygen app has provided a convenient way to check SpO2 readings right from your wrist.
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