METHOD 1
Automatic Hardware Detection
Matches your screen resolution and device pixel ratio against our verified manufacturer database.
Open Calibrate -> Auto-Detect -> Click "Apply Auto Calibration".
METHOD 2
Screen Diagonal (Inches)
Uses standard screen diagonal specifications to compute exact physical PPI via the Pythagorean theorem.
Open Calibrate -> Screen Diagonal -> Enter size (e.g. 13.3", 15.6", 24", 27") -> Click "Apply".
METHOD 3
Standard Card Matching
Any bank or ID card has a standard width of 85.60 mm. Place your card on screen and align the slider.
Open Calibrate -> Credit Card -> Adjust slider to match physical card width -> Click "Save".