iOS 14.5 goes back to iPhone 6s which came out in 2015. It seems more than reasonable that it wouldn't support devices older than that. No iPhone or Android de

iOS 14.5 goes back to iPhone 6s which came out in 2015. It seems more than reasonable that it wouldn't support devices older than that. No iPhone or Android device available actually prevents you being tracked. No smartphone prevents someone wanting to track you from using a cheap GPS tracker, Tile or another old cellphone to trace your location. Airtags aren't made for tracking people and are actually the only tracker that will alert anyone at all of their potentially unwanted presence.