AppleCare+ for AirPods not part of AppleCare One
I currently have applecare one with 3 devices. If I buy airpods. Can I purchase applecare+ not added to my applecare one?
You could, if you so wished, buy three separate individual plans for the 3 things you have already, so I do not see why not just for the airpods. Apple just puts a 3 device limit on the ApplecCare One plan Legal - AppleCare One - Apple
which to me makes sense because it is a fixed cost plan.