The video storage capacity of the 512GB iPad Air is significantly greater than that of the 256GB model. Specifically, the 512GB model can store at least 2,485 minutes of 1080p HD video at 30 frames per second. If you prefer filming in 4K, you can expect to store around 994 minutes of UHD video at 30 frames per second.
In contrast, the 256GB model can store about 1,205 minutes of 1080p HD video at 30 frames per second. For 4K video, it can hold approximately 482 minutes of UHD video at 30 frames per second. This means the 512GB model offers more than twice the video storage capacity of the 256GB model, making it a better choice for users who need to store a large number of videos, especially in higher resolutions like 4K[3].
Citations:[1] https://www.reddit.com/r/iPadPro/comments/1dhxwmp/256_or_512gb/
[2] https://www.nytimes.com/wirecutter/reviews/the-ipad-is-the-best-tablet/
[3] https://swappa.com/guide/apple-ipad-air-13-2024/storage
[4] https://discussions.apple.com/thread/251912929
[5] https://www.imore.com/what-ipad-storage-size-should-you-get
[6] https://forums.macrumors.com/threads/256gb-vs-512gb-storage.2051207/
[7] https://www.apple.com/ipad/compare/
[8] https://news.ycombinator.com/item?id=40286128