Mobile Device Tests

Phones and tablets pack sensors a desktop never has to worry about. These five tests read them directly through your mobile browser — touch accuracy, vibration, tilt, motion, and multi-touch.

Open these directly on the phone or tablet you want to check — none of them work meaningfully from a desktop browser, since they read hardware sensors that only mobile devices have. Touch Screen Test and Multi-Touch Test cover the display itself, while Gyroscope Test and Accelerometer Test check the motion sensors that games and mapping apps rely on.

They're especially useful right after buying a used phone, after a drop or repair, or when an app that depends on one of these sensors — a game using tilt controls, a fitness app counting steps — starts behaving oddly.

Touch Screen Test

Map every zone of your screen for dead spots and delay.

Vibration Test

Trigger your phone's vibration motor with custom patterns.

Gyroscope Test

Read your device's tilt and rotation on an artificial horizon.

Accelerometer Test

Watch live G-force readings as you move or shake your device.

Multi-Touch Test

Check how many simultaneous touch points your screen tracks.

Frequently asked questions

Why don't these tests do anything on my laptop?

They read hardware sensors — a vibration motor, a gyroscope, an accelerometer — that desktop and laptop computers simply don't have. Open the page directly on the phone or tablet you want to check instead.

Should I test sensors right after buying a used phone?

Yes, this is one of the most useful times to run through all five. A used phone rarely comes with a way to verify its sensors still work, and problems here are easy to miss during a quick in-person check.

My phone's screen isn't responding evenly — which test should I use?

Touch Screen Test maps your entire display zone by zone, which will show you exactly where response is weak or missing rather than leaving you to guess from general use.