On this issue, the difference between the back cover of the Apple 11 Pro and the 12 Max is mainly:
1. Camera module: The Apple 12 Max's camera module is larger and more prominent than the 11 Pro, because the 12 Max uses a more advanced camera system.
2. Magnetic charging: The Apple 12 Max supports MagSafe magnetic charging, while the 11 Pro does not.
3. Color: The Apple 12 Max has more colors to choose from than the 11 Pro.
4. Material: The Apple 12 Max has a more robust ceramic back cover, while the 11 Pro is made of glass.
5. Size: The Apple 12 Max is a bit bigger than the 11 Pro because it has a bigger screen.
The 11promax back cover is the same material as the 12pro back cover, the iPhone11pro max back cover glass uses a dual ion exchange process, which has higher strength than the ordinary glass back cover, which can improve the anti-drop ability of the phone.