Hey yall! I just got married and one of the things Amazon gave us since we hit a certain threshold for our registry, they gave us a 20% discount code. My wife wants to use it to buy us a 2021 iPad Pro 12.9" and I've never owned a cellular iPad before. One of the questions I had was does it always have to be connected/activated to cellular or can you activate and deactivate it when you are traveling/out of wifi range? I appreciate the help! Hopefully this makes sense?