Understanding Video Resolutions

Today's iPhones can record up to 4K video resolution and the new Apple TV can play back 4K movies. What is the difference between 4K and 1080 HD? How about older standards like 720 HD and SD video? Learn the difference and how it can affect video quality. Learn how to set your video recording resolution on your iPhone.

Comments: 5 Responses to “Understanding Video Resolutions”

    6 years ago

    This is an interesting article. I have an iPhone 5 and when I send a video to my daughter who has an iPhone 8, she says the quality is very poor. I wonder if this answers our question as to 'why'.

    6 years ago

    Kristie: Depending on how you send it the video is probably compressed and shrunk even more, so the quality would be low. Uploading to a service like YouTube and sharing the link is a good way to send high quality video.

    Richard Scotte
    6 years ago

    This really helps me to understand the process of video and the different qualities I have seen over the years. At 87 yrs I'm always playing catchup with the latest technology so please keep this articles coming. PS love the sub-titles. (thanks)

    Mike Milton
    6 years ago

    Interesting vlog and surely helpful to its intended audience. It is accurate except that the discussion is really about UHD (2160x3840) and not 4K (2048x4096). Calling UHD 4K is a marketing thing that has resulted in 'real' 4K taking in the name C4K or cinema 4K. C4K also has a slightly different aspect ratio, appropriate for theatres.

    My issue with the vlog is that, at typical viewing distances, HD and UHD are indistinguishable. See this http://yedlin.net/ResDemo/ResDemoPt1.html

    6 years ago

    Thanks for this informative, easy to understand explanation. Very helpful!

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