Talk to Ben

Turn Your Phone Into a Metal Detector | Metal Detector & Gold Hunt ◎ Gold Hunt Blog Get the app Guide Turn your phone into a metal detector The phone in your pocket already has a magnetic sensor. This guide explains how it works, how to get accurate readings with Metal Detector & Gold Hunt , and what its real limits are. 6 min read Updated: October 20, 2026 In this article How does a phone detect metal? Key features Five view modes Get started in 4 steps Tips for more accurate readings What the app can and can't do FAQ How does a phone detect metal? Almost every Android phone has a magnetometer , the same component that lets your maps app know which way you're facing. It measures the strength of the surrounding magnetic field in microtesla (μT) . Normally, your phone only "...