Is an Ipad or tablet better than a kindle, in Canada?

I read some of the complaints, on Amazon, and they say that some features are not supported in Canada.

What are my other options?

My have lots of books, and would like my stuff to be more portable.

My Samsung smart phone, that I bought for $150, is out of space and would like to have a phone that can download apps and read books and textbooks with. It might be better to have a really good phone and skip the ereader.