Mouse
Step-by-step mouse check when buying or for yourself. Works for new and used mice.
Quick check
5 minutes, no software to installVisual inspection
Body without cracks, cable intact (if wired), the wheel not wobbling.
Connection
The system recognizes the device, no errors in Device Manager.
Clicks
Left and right buttons must click crisply, no double clicks or sticking.
Wheel
Scrolling must be smooth, no skips or squeaks.
Cursor movement
The cursor must move smoothly, no jumps or drift.
Medium check
5–10 minutesExtra buttons
Test side buttons, DPI switch and scroll mode button.
Wireless connection
If wireless — check connection stability over Bluetooth and the USB receiver.
Backlight
If present — test all modes.
Full check
10–15 minutesClick stress test
Click fast in an online test or a game: no double clicks or missed presses.
Open online test →Sensor check
Test on different surfaces (mat, desk, cloth): no cursor breakdowns on fast moves.
Response time
Check the delay in special online tests.
Software
If there is software — set macros, change DPI, check that settings save to the device memory.
Built-in weights
If present — check how weight changes affect the balance.
How to test tech before buying
Buying new or used tech always comes with risks: hidden defects, dead pixels, broken keys, a worn battery, cooling issues and other problems are not always visible during a casual inspection. FullTestPC provides detailed step-by-step guides to help you catch everything when checking devices. For each type of hardware — laptops, desktop PCs, monitors, keyboards, mice, headphones, GPUs, SSDs and HDDs, RAM, CPUs and power supplies — we have three levels of diagnostics: a quick 5–10 minute check with no software to install (visual inspection, basic functions), a medium 15–20 minute check using built-in Windows tools (battery reports, chkdsk, load tests) and a full 30–60 minute check using professional utilities like AIDA64, FurMark, CrystalDiskInfo, Victoria, TestMem5 and OCCT. This approach lets you adjust the depth of the check to the situation: a quick check is enough when buying from a store, a medium check when buying from a private seller, and a full stress test of all components for complete peace of mind. Many tests can be done right in the browser using our online tools (keyboard test, monitor dead pixel test, mouse and trackpad test), while the rest use standard or free programs. Following these checklists reduces the risk of buying a broken device and gives you confidence in its condition.