is blood oxygen on apple watch accurate

Best answer


Less accurate

People also ask


  • Which Apple Watches can monitor blood oxygen levels?

  • Currently, the Apple Watch 6 and 7 are the only ones capable of monitoring blood oxygen levels. You can imagine the Apple Watch 8 and the next-generation Apple Watch SE will also pack the sensor technology when they arrive on the scene, too. The Blood Oxygen app is available in certain countries and regions, which you can check here.

  • How do I set up blood oxygen on my Apple Watch?

  • *The Blood Oxygen app is not available if you set up your Apple Watch with Family Setup. On your iPhone, open the Health app. Follow the onscreen steps. If you don’t see a prompt to set up, tap the Browse tab, then tap Respiratory Blood Oxygen Enable.

  • How does the oxygen sensor on an Apple Watch work?

  • Most oxygen sensors, including Apple鈥檚, measure the amount of oxygen in your blood using light. These devices are called pulse oximeters, and they typically clip on to your fingertip.

  • What is the difference between Apple Watch and pulse oximeter?

  • The key difference here is that, as a wrist-facing device, the Apple Watch can only measure blood oxygen levels through your wrist. Blood doesn鈥檛 gather quite as densely or close to the surface in your wrist as it does in your fingertips 鈥?which means from the get-go the Watch can never be as accurate as a true pulse oximeter.

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