Screen Test: Phone Diagnostics

Test your phone before you buy, sell or repair it.

Screen Test is a complete phone diagnostic toolkit for checking your display and essential hardware in minutes. Find possible screen defects, verify touch response, inspect cameras and speakers, check sensors and refresh rate, review battery and system details, and run a CPU/GPU thermal test.

Display & Pixels

• Find dead, stuck or bright pixels with full-screen color and pattern tests.
• Check RGB colors, gradients, grayscale and panel uniformity.
• Inspect burn-in, image retention and visible display defects.

Touch Screen

• Test touch coverage and multi-touch response.
• Find unresponsive zones and ghost touches.

Audio & Haptics

• Check left and right speaker channels, stereo balance and vibration.

Sensors & Motion

• Test motion and proximity sensors with live readings.

Camera & Flash

• Check front and rear cameras, zoom and the LED flash.

Refresh Rate

• Compare live FPS with your display’s physical refresh rate and assess smoothness.

Battery & System

• Review battery condition, temperature, device model, Android version, resolution and hardware information.

CPU, GPU & Thermal

• Run a short performance test and monitor heat and thermal stability.

Shareable Diagnostic Report

Complete the tests and create a PDF report with your results. Use it when checking a used phone, after a screen repair, before a sale or when troubleshooting a device.

Screen Test is simple, fast and easy to understand. It helps you inspect your device and spot possible problems before they become expensive surprises.

Important: This app provides visual and sensor-based checks. It does not repair physical hardware damage, and results may vary by device.