The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a ...

Normal blood oxygen levels mean that there is enough oxygen in your red blood cells to keep your vital organs and tissues functioning properly. You can easily check your blood oxygen levels with ...

By contrast, a healthy person should have blood oxygen levels of at least 95%, and typically require medical attention if those levels drop below 90%. In its current form, the app is able to ...

Biz shifts data to iPhone in patent workaround Apple will deliver a software update for recent US Apple Watch models to ...