Your Device Info
Touch Screen Tests
Multi-Touch Test
Place multiple fingers simultaneously to verify multi-touch support. Try using all fingers for a thorough test.
Touch here with multiple fingers
Active: 0 |
Max detected: 0 |
Device reports: 0 max points
Waiting for input
Touch Accuracy Test
Tap each crosshair target as precisely as possible. 10 targets. Your hit rate determines your accuracy score.
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Dead Zone Grid Test
Slowly swipe across every cell. Any cells that stay white are dead zones — areas where touch input isn't registering.
Cells touched: 0 / 0
Waiting for input
Edge Touch Test
Touch all highlighted amber border cells. Screen edges are the first area to lose responsiveness after drops or repairs.
Edges touched: 0 / 0
Waiting for input
Drawing Test
Draw freely to check stroke smoothness, continuity, and jitter. Broken or jagged lines suggest digitizer or cable issues.
Waiting for input
Ghost Touch Detection
Do NOT touch the screen after starting. This test monitors your entire screen for phantom touch events that indicate hardware failure.
Keep hands off screen…
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Display Tests
Dead Pixel Test
Tap each color to display it fullscreen. Look carefully for any pixel showing a different color. Test all 6 colors for complete coverage. Tap the screen to cycle to the next color.
Test all 6 colors. Tap screen to cycle → tap back button or last color to close.
Not tested
Gradient Test
Look for visible banding or abrupt steps. A healthy display renders completely smooth transitions without jumps.
Not tested
Brightness Uniformity Test
A uniform grey screen reveals backlight bleed or uneven brightness. Look for darker patches at corners or edges.
Not tested
Contrast Test
Can you see all 16 distinct shade steps below? 8 near-black (left) and 8 near-white (right). A poor display merges steps together.
You should see 8 distinct dark steps and 8 distinct light steps.
Not tested
Performance Tests
FPS / Refresh Rate Test
Measures your screen's rendering frame rate over 5 seconds. 60 FPS = standard. 90/120 FPS = high-refresh gaming display. We discard the first reading to avoid JIT warmup skew.
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Touch Latency Test
Tap when the box turns green. We take 3 readings and average them. Under 80ms is excellent; under 150ms is acceptable.
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Diagnostic Report
Complete the tests above to generate your full device report
Run the tests above to see your verdict
Complete all diagnostic modules for a comprehensive device health score.