4K content refers to video or images that have a resolution of approximately 3840 x 2160 pixels, which is four times the resolution of 1080p HD. This higher pixel count allows for more detail and clarity, making images appear sharper and more lifelike. Many streaming services, such as Netflix and Amazon Prime Video, offer 4K content to enhance the viewing experience. To enjoy this high-quality video, viewers need a compatible 4K TV or monitor and a strong internet connection to support the increased data requirements.