I'm student from Korea. I'm interested in apple things.
I have several questions about Apple Watch sensors such as ECG(Electrocardiogram), Heart rate, Oxygen Saturation, breath rate, atrial fibrillation(afib) and so on.
First of all, Can I use these sensors all day long? with no limit?
I'm planning to develop some healthcare application using Apple Watch with sensors.
I can't find examples of using sensors 24/7.
And Second, If I can use the sensors all day long, can I execute the app in background?
Finally, If I can execute the app in background, can I activate the sensors in background?
Thank you for your help.
I have tried searching developer guide, and searching the GitHub.