Touch screen test: dead zones and ghost touches
Swipe to fill a grid of cells and spot dead touch zones or ghost touches on a phone or tablet. Runs full screen, free.
✓ Pass if
- 100% of cells filled
✗ Fail if
- A cell never fills however often you swipe (dead zone)
- Cells fill by themselves without a touch (ghost touch)
Other tests
- Check device specs
- Dead pixel, backlight bleed and burn-in test
- Screen refresh rate test (Hz)
- Multi-touch test
- Speaker test: left, right, distortion
- Microphone test: record and play back
- Front camera, rear camera and flash test
- Laptop keyboard test
- Touchpad and mouse test
- Sensor and vibration test
- Fingerprint and Face ID test
- Battery and charging port test
- CPU test: performance and overheating
- WiFi and network speed test
- GPS and location test
- Manual used-device checklist