Mobile Tests
No-install tests for your phone or tablet. Find out how many touch points your screen tracks at once, and catch dead patches or phantom touches early.
Your phone screen is a grid of touch sensors, and any one of them can quit. The multi-touch test shows a dot for every finger you put down, so you can see the exact count your screen tracks and watch for a finger that drops out. Drag slowly corner to corner and a gap in the trail marks a dead patch where the digitizer stopped reading.
A dead patch or a phantom tap usually traces to one of a few things, and not always the glass. A thick or peeling screen protector dampens touch and fakes dead spots, so pull it off and retest first. Ghost touches, where the phone taps on its own, often come from a cheap charger or static rather than a failing screen. Real digitizer damage, from a drop or liquid, is what's left when those are ruled out. If a fault survives a restart and a clean screen, it's hardware.
Phone browsers cap how many touch points they report. On iPhone it's often five, so a count that stops there is the browser limit, not a screen fault. The rest of your phone tests live here too. Dead pixel, refresh rate, and audio checks that work on a monitor all run in your phone browser, so you can scan for stuck pixels or confirm a 120 Hz panel without an app.
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Get Water Out of Phone Speaker
Need to get water out of your phone speaker? A 165 Hz tone vibrates the trapped drops out of the grille in seconds, on any iPhone or Android, in your browser.
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Phone Burn-in Test
Check your phone for OLED burn-in in the browser. A flat gray reveals a ghost of the status bar or nav buttons, and Exercise mode clears temporary retention.
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GPS Test
Run a GPS test in the browser. Time the first fix, watch accuracy in meters tighten or stall, and see if the receiver locks on. Coordinates stay on the phone.
Phone Gyroscope Test
Test your phone's gyroscope and accelerometer in the browser. Watch the dot track live pitch and roll. The wobble readout catches a drifting or stuck sensor.
Phone Vibration Test
Test your phone's vibration motor in the browser. Tap any pattern on Android and find out whether the motor has failed or silent mode is in the way.
Phone Audio Test
Test your phone speakers, microphone, and headphones right in the browser. No app to install, and what to do when calls, games, or media suddenly sound off.
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120Hz Not Working on Your iPhone? ProMotion Explained
Your iPhone screen stuck at 60Hz? ProMotion throttles itself on purpose, from Low Power Mode to a hidden setting. Here's what caps it and how to confirm 120Hz.
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How to Test a Used Phone Before You Buy
Buying a used phone? Run this checklist before you pay. Test the screen, touch, cameras, and speakers in the browser, and catch a locked or stolen handset.
FAQ
- How do I test my phone's touchscreen?
- Open the multi-touch test and press the screen with several fingers. A dot appears under each one, so you can count how many your phone tracks at once. Then drag slowly across the whole screen and watch for any gap in the line, which marks a spot that isn't registering. Open the multi-touch test
- How many touch points should my phone track?
- Most modern phones handle five to ten fingers at once, and tablets often more. But a phone browser usually caps the count it can report, often around five on iPhone. If the test stops at five, that's the browser limit, not a fault.
- What causes ghost touches on a phone?
- A phantom tap is usually not the screen itself. A cheap or ungrounded charger is the most common cause, so unplug it and see if the taps stop. Static, moisture, and a poor-quality screen protector can do it too. If it keeps happening unplugged and with the protector off, the digitizer is failing.
- Why does part of my screen not respond to touch?
- Start with the screen protector, since a thick or lifting one creates dead spots that vanish once you remove it. Clean the glass and retest. If a patch still won't register after a restart, the digitizer under that area is damaged, usually from a drop or liquid, and needs replacing.
- Can I test my phone's screen for dead pixels or refresh rate too?
- Yes. Dead pixel and refresh rate tests both run in your phone browser, no app needed. Go full screen with the dead pixel test to hunt stuck dots, or run the refresh rate test to confirm your phone is really hitting 90 or 120 Hz instead of dropping to 60. Test your phone for dead pixels
- Can I test my phone's camera and audio here too?
- Yes. The webcam test opens your phone's front or rear camera in the browser, and the audio tests check the speakers and mic. They're the fast way to confirm a lens or a speaker works before you blame an app. Test your phone camera