Dell Ultrasharp UP2414Q, 4K ( Ultra HD ) 24-inch

Dell UltraSharp UP2414Q contains 3840 x 2160 pixels, giving a pixel density of about 184 ppi. That compares to the Sharp PN K321H, Asus PQ321 and their UltraSharp UP3214Q of 31.5 inches and 140 ppi. In practice it twice up from a standard 24-inch display with 1080p resolution.