FYI, while you can pair Airpods with non-Apple devices, the hearing aid functionality requires an iPhone or iPad (at least for initial setup). Apple needs to run special software (which is only available on their devices) to test your hearing and create a personalized profile before any hearing aid functionality is enabled. (I have both an iPad and an Android phone, and the Android cannot do this on its own.)
It’s not clear to me whether you can use the personalized profile on a different device after the initial hearing test (i.e. whether you can do the setup on an iPhone/iPad and then carry it over for use on Android), but you definitely can’t start the setup on an Android.
Also, I didn’t find this thread until I accidentally made a new Airpod-specific one, if anyone’s interested: Has anyone tried Airpods as hearing aids yet?