Understanding question: according to the app store, the Air tag can be used in low functionality from iPhone5 SE and higher, or iPad Air 2 and IOS 14.5. I.e. I didn & APOs; t have to buy a new iPhone, which I & APOs; m not going to do.What I & APOs; m interested in: you can say it in the settings, for example iPhone, if you & APOs; re so and so many meters away from something, then do that and that.If it & APOs; s also possible for the iPhones with BT, for example, if I lose my key and an air tag hangs on it, and if the Bluetooth range gets ever smaller, which from a certain point iPhone tells me: listen to your key keeps moving away, And then show me where it was last. Then there is at least one way to find it with BT.Specific: if at least I knew that I would get a warning signal if my house key is too far away from me and I can still find it, in which I hear the beeping somewhere in the terrain then it would already be some interesting story. So I & APOs; m sure I won & APOs; t buy a new iPhone anymore just to use the U1 chipfunctionality. And, of course, if I leave any item at home that I can temporarily disable this feature, I can & APOs; t see that in the house then go P plus hi my iPhone oh it & APOs; s no longer my range.Apart from that, I find the accessories at prices very expensive. Of course, it would be nice if it has a trailer where I can fix a key or whatever. Sorry it & APOs; s not a real tracker.For example, which I can attach hidden to my bike, and if my bike is stolen I can find it again, or I & APOs; m doing a thinking flaw.In that respect, there are plenty of foreign providers.