1. Different models of iPad cases are usually not common
iPad sizes, thicknesses, and button positions can vary from model to model, so cases are often not universal. For example, the cases for the iPad 11 and iPad 10 are universal because they are both 10.86 inches in size. However, the case for the iPad Pro 2022 is not universal with the case for the iPad Pro 2024.
2. similar on the outside but different inside
Even if the external dimensions of some iPad models are similar, the internal construction and design can be different. For example, the case of the iPad Air 5 and iPad Air 6, although they look similar, are not completely universal because of the differences in the interior design.

3. Potential problems with the generic case
Some vendors may sell so-called "universal" cases, but these may not fit perfectly with a particular iPad model. For example, the universal case for the 2022 iPad may have the wrong holes or be difficult to install, and may even damage the device.
4. It is recommended to choose a case specially designed for the model
To ensure the best protection for the iPad, it is recommended to choose a case designed for a specific model. This avoids problems caused by size or design mismatches, while also better protecting the equipment.
5. Other precautions
The material and function of the case (such as wake-up function) may also affect its versatility. For example, the wake up function of some cases may not work properly on certain models. In addition, too tight protective cover may affect the heat dissipation of the iPad, it is recommended to choose the appropriate tightness of the protective cover.
In summary, the versatility of iPad cases varies by model and design, and it is recommended to check whether the case is suitable for your specific iPad model before purchasing.