I'm currently using an iphone 5 which I'm happy with except that I'm finding the screen too small for some websites and for reading ebooks. I've been looking at 5" androids like the xperia z to replace my ip5. Alternatively I could get an ipad mini and keep my ip5. It would be better for browsing but I wouldn't always have it with me like a phone. Does anyone have any thoughts? How is a large 5" or note size phone for reading PDF/mobi books?