The “R” in 1800R stands for radius, measured in millimetres. An 1800R curved monitor is designed to match the curvature of a circle with a radius of 1800mm (1.8 metres). In practical terms, this is considered a moderate curve — noticeable enough to provide a sense of immersion when seated at a typical desk distance, but not so extreme as to cause distortion at the screen edges. Monitors with a lower R number (such as 1500R or 1000R) have a tighter, more pronounced curve, while a higher R number means a flatter curve. The 1800R curvature on this Samsung monitor is designed to be comfortable for a wide range of users and desk setups. Whether you prefer a curved or flat display is ultimately a personal choice that depends on your viewing habits, desk width, and the type of content you primarily use your monitor for.