I had an iPad and an iPhone and a Macbook I found I used my phone for almost everything.
After all my apple products breaking I got a cheap HP laptop not as good and my cheap samsung phone has been pretty good just doesn't feel as nice as the iphone. I had my iPod from 2005 until 2013 that did well, everything else has been badly made compared to that.
As for the Surface haven't tried it and don't think I'd bother I liked watching movies on the ipad, other than that didn't use it for much more than facebook games. The phone got most work out.