Are you an Android user or an Apple user?

While there’s certainly no rule against owning devices from different manufacturers, there are definitely advantages to buying a tablet that’s built on the same platform as your phone. The biggest benefit is familiarity. If you’re already familiar with Android or iOS as operating systems, you’ll feel right at home the first time you power up your tablet if you buy one with the same OS. In addition, some tablets and phones from the same brand offer extended functionality when used together. For example, if you’re an iPhone owner, you can set up an iPad so you can answer phone calls from it.

You might be interested in reading this post for more information before buying one