What is Refresh rate?
Refresh rate (Hz) and response time
How many times a second the image redraws, and how fast a pixel changes.
Short answer
'1 ms' is usually a marketing mode with heavy overshoot — look for measured grey-to-grey figures in reviews.
Refresh rate when buying a monitor
How many times a second the image redraws, and how fast a pixel changes.
Why it matters: 100–120 Hz makes scrolling and cursor movement feel smoother; competitive gaming benefits from 144–240 Hz.
Look for: '1 ms' is usually a marketing mode with heavy overshoot — look for measured grey-to-grey figures in reviews.
Full Monitor buying guide