The Magic Keyboard for iPad Pro 13" (M4) is not compatible with the 6th generation iPad Pro 12.9". It has been specially developed for the 13-inch model. There is a separate Magic Keyboard for the iPad Pro 12.9" of the 6th generation, which is specially designed for this size.
The Magic Keyboard (CH, iPad Pro 13 2024 (M4)) does not fit the iPad Air 13 2025.
The Magic Keyboard for the iPad Air 13 inch is specially designed for the iPad Air 13 (M2) and iPad Air 13 (M3) models and requires iPadOS 18.3 or newer. A new Magic Keyboard specially designed for the iPad Air 13 2025 is likely to be offered, which differs from the one for the iPad Pro 13 2024 (M4).
The keyboard does not have its own battery. Instead, the keyboard and trackpad are supplied with power directly from the iPad via the proprietary Smart Connector interface.
It also has no resolution, as it does not have a display.
Yes, this keyboard also fits an iPad Pro 13-inch (M4) Wi-Fi MVX83TY/A. The Magic Keyboard is specially designed for the iPad Pro 13" (M4) and should therefore be compatible without any problems.
No. This keyboard can only be used for the new iPad Pro with M4.
The iPad Pro with M4 is slightly larger and the magnets on the back are arranged differently to the older Pro with M processors and the new Air with M2. This means that all cases and keyboards from the older iPad Pros should be compatible with the new Air.
You can find a compatibility list for the cases and keyboards on the product page on the Apple website.