4K resolution
4K resolution, also called 4K, refers to a horizontal display resolution of approximately 4,000 pixels. Digital television and digital cinematography commonly use several different 4K resolutions. In television and consumer media, 38402160 (4K UHD) is the dominant 4K standard, whereas the movie projection industry uses 40962160 (DCI 4K).
10K resolution
10K resolution is horizontal resolution of around 10,000 pixels. This resolution is expected to be used in computer monitors, and is not a standard format in digital television and digital cinematography, which feature 4K and 8K resolutions.