Is it useless to get a iPad for christmas when I already have a iPhone 5?

Is it useless to get a iPad for christmas when I already have a iPhone 5?

Not really. You could spread across the apps you have between them.

That's my plan for getting an iPad (being an iPhone owner) anyhow.

I would get a Android tablet, if you are confident. Tablet at times is much more convenient when you need quick access to a computer. However the entire decision is upto you whether you are going for iOS or Android