The base circuitry for detecting metal probably hasn't changed much (at least not for amateur prices), but there are apparently modern metal detectors with app

The base circuitry for detecting metal probably hasn't changed much (at least not for amateur prices), but there are apparently modern metal detectors with app integration and gps and the like: https://apps.apple.com/be/app/go-terrain/id1419674707 https://apps.apple.com/be/app/go-terrain/id1419674707