What is 4K?
4K resolution, also known as 4K, is a technique in which the screen content or display reaches the level of 4096 × 2160 pixels, where 4096 represents the number of pixels horizontally and 2160 represents the number of pixels vertically. 4K resolution is four times the size of 1080P. 4K resolution is high-definition quality, and of course the picture is more realistic. You can clearly see the wrinkles on the face, eyelashes and hair of the person, which brings the user a new experience.
Since YouTube officially announced support for 4K videos at VidCon 2010, there have been more and more 4K Ultra HD videos on YouTube. It turns out that the clarity of the video increases from 720P to 1080P and then from 2K to 4K. From 30fps to 48fps, to 60fps, the image becomes more and more delicate. However, although the technology is cool, watching a 4K Ultra HD video requires a very stable and fast Internet connection .For now, it is better to download 4K videos instead of watching them online.
However, the problem is that YouTube does not have a built-in download function. So, how can we download 4K Ultra HD videos from YouTube? Don't worry! This article will help you! Below you will find some effective methods to download a 4K YouTube video to PC and Mac and watch them.

How to download a 4K Ultra HD video to PC
If you have a computer with Windows, you can use a 4K video downloader to download 2160P high-definition videos to computer. Below are the steps:
- Step 1. Download and install the 4K video downloader, then run it on your computer. Go to the YouTube website, copy one or more 4K video URLs, and click the “+Paste URL” button in the upper left corner of the program.
- Step 2. YouTube Downloader 4K will start parsing the video URL and after a few minutes a pop-up window will appear where you can customize the video download, download 4K videos with original audio and subtitles, and more. After selecting what you want, click the Download button.
- Step 3. The program will start downloading the 4K Ultra HD video. As for the time it will take depends on the size of the video, you can adjust the download speed in the lower right corner. Once the download is complete, click Play or Open Folder to view the downloaded 4K videos.
How to download a 4K Ultra HD video on Mac
For users who use Mac computers, there are also some practical ways to download 4K videos from YouTube. Here we recommend using MacX YouTube Downloader, which is very powerful and can save 4K Ultra HD videos to Mac computer in high quality. Here's how you can use it.
- Step 1. Download and install MacX YouTube Downloader on your Mac and then run it. On the interface, find and click the “+Add URL” button and then a window will pop up.
- Step 2. Then visit the YouTube website and copy the link of the 4K video you want to download, then paste the URL into the program box. Then click the “Analyze” button to start the analysis.
- Step 3. After the analysis is done successfully, setting the download preferences, then the Ultra HD will start downloading the 4K video to Mac. After it is finished, you are ready to watch the video.
How to download a 4K Ultra HD video online
If you don't want to install any software on computer , you can find some excellent online "4K video downloaders" here, such as QDownloader.net, which can help you download 2160P Ultra HD video for easy offline viewing. Let's see the steps below:
- Step 1. Copy the 4K video URL from the YouTube website.
- Step 2. Visit the official website of QDownloader.net, enter the video link in the box on the main page, and then click Download.
- Step 3. Then wait for the program to create the video. Then select the video resolution 2160P and click Download. And after all that you are ready to watch a 4K Ultra HD video offline.
