I presume that the answer is “No,” but I thought I’d ask anyway. And any iPhone users might want to comment on whether the presence of HA’s near an iPhone or any other specified device can be used to unlock an iPhone (I know there is Face ID and all that - but with Smart Lock you don’t have to bother showing the phone your face).
For Android, amongst other things, your GPS position or the presence of a specified BT device near your phone, e.g., your smartwatch, can be used to unlock your lock screen. The problem is that the HA/Android phone connection (at least for my ReSound Quattro’s) does not show up as a standard BT connection. If I wanted, I could use the Phone Clip+ as an unlocking device but then I’d have to have the PC+ on and around all the time. I don’t want to have my watch using BT all the time because that chews watch watch battery and I don’t need the watch on BT all the time. (as an aside, a ReSound Multi-Mic, a remote mic, like the basic phone connection, is not a standard BT device w.r.t. a smartphone, and cannot unlock an Android phone).
Since the phone app is capable of recognizing the state of the HA’s (and the Multi-Mic)hru a (secure?) non-BT connection as well the PC+ through a standard BT connection, I’d like to suggest that we Android users all ding our HA OEM’s and Google to ask them to extend Smart Lock to recognize whether our very own HA’s are nearby as a way to unlock our phones. Another good thing would be to have some sort of proximity effect for unlocking. I haven’t experimented but it seems if BT broadcasting distance is 10 meters (> 30 ft) that you wouldn’t want to have your phone unlocked just when you’re in a room and someone else in your family could then play around with your phone, etc. (Lot of ignorance here on my part since normally I only use the Smart Lock feature when my watch BT is on and I’m holding the phone in my hand).