One of the selling points of the iPhone 15 Pro is the ProRes video shooting function that the iPhone 15 and iPhone 15 Plus do not have. However, like the iPhone 13 Pro and 14 Pro series in previous years, to shoot 4K 60fps ProRes video you must use 256GB or more model, otherwise the system will limit shooting at 1080p 30fps.
The iPhone 15 Pro, which relies on USB-C to break through the storage limit of 128GB and 256GB, is priced at NT$36,900 and $40,400 respectively. For consumers who do not often shoot 4K ProRes videos, is it necessary to spend an extra 3,500 yuan to buy the 256GB version? It turns out that a simple trick can break through the above limitations. Even the 128GB iPhone 15 Pro can shoot 4K 60fps ProRes videos, all because the new phone uses a USB-C transmission interface. As long as an external storage formatted in exFAT or APFS is plugged into the USB-C port of the iPhone 15 Pro, ProRes videos can be stored directly to the external storage when recording, but Apple has not mentioned the speed requirements of the storage.
ProRes takes up a lot of space
It is worth noting that ProRes video files are quite large. Apple said that 10-bit ProRes video per minute, 1080p and 4K require approximately 1.7GB and 6GB of storage space respectively. They believe that allowing the 128GB model to record 4K ProRes will affect the user experience, so they made System limitations. The above limitations do not apply to the iPhone 15 Pro Max, as it does not come in a 128GB version, starting at 256GB and offering 256GB and 1TB storage options.
source:macrumors