Android phones combine several useful sensors, but no single reading proves that a hidden camera is present. Use each result as a clue and verify the physical object.
Start with a visual room check
Identify powered objects with a clear view of beds, bathrooms, or changing areas before opening an app.
Understand magnetic sensor results
Some Android phones include a magnetometer. Electronics and metal objects can trigger it, so a strong reading is a reason to inspect, not proof of a camera.
Scan authorized Wi-Fi
Network discovery may show connected devices, names, and manufacturers. Guest isolation, cellular cameras, and offline recorders will not appear.
Use camera filters carefully
Check suspicious openings from several angles. Screws, glass, and glossy plastic commonly create false reflections.
Frequently asked questions
Do all Android phones have a magnetic sensor?
No. Hardware varies by model, and detector features that need a magnetometer may be unavailable on some phones.
Can Android detect cameras without Wi-Fi?
A physical lens check or magnetic reading may reveal clues, but offline cameras cannot be found through network scanning.
Is an unknown device always suspicious?
No. TVs, speakers, routers, locks, and building systems may appear with generic names.