The 2.1-inch screen can provide a wider field of view than 1.28-inch and 1.6-inch screens, suitable for displaying more information or larger fonts/icons, improving readability and user experience. The 2.1-inch knob screen performs well in scenarios that require high-quality graphic output and convenient user interaction due to its large display space and excellent visibility. It is usually used in the central control panel of smart home systems, portable medical devices, car dashboards, industrial automation equipment, professional instruments, outdoor sports equipment, etc..
