Checkuno

CHECKUNO / Tools

Screen color test

Look for visible dots, tint and uneven areas with solid colors.

Switch colors with the buttons. Use Exit or Esc to close. Browser bars or safe areas may remain visible; this is not full physical pixel coverage. Colors do not flash automatically.

White

LOCAL IN THIS PAGE · NO UPLOAD · NO CAMERA OR MICROPHONE ACCESS

How should I read the result?

A check is an observation, not a certification. Results do not establish authenticity, water resistance, remaining lifespan or the absence of hidden damage.

Read the full checking steps →