I'd suggest the phone is big enough to be a mini tablet Al. Tbh.
Nice to use, and for browsing but, get that bugger in your pocket and sit down. See of it snaps
iPhone 5 is too big IMO. And theirs talk of them going bigger on the 6.
That's my point, screen is almost the same size, and I can use it to send texts and ring people too... Which is nice
Haven't snapped it yet, but the screen is shite compared to my Xperia S, really easily scuffed, so can only assume it's plastic rather than glass
And as for the screen on the tablet... well that is bomb proof
You pays your money, you makes your choice... very happy with mine thus far
Should I need to replace it, then I will probably do so on a like for like basis, or buy a laptop as my phone has a 5" screen, so a mini tablet has less to offer in my case.
I doubt you'll replace with another Sony one, unless you hurry up and break yours, as Phoney are trying to dump PC and tablet division, and not clear what they are doing with mobile and mini tablets.
Kind of a moot point until it breaks... by then I may well have a TV with wifi (for Netflix etc), in which case I may well invest in a laptop, probably HP).
I have a desk cradle for mine which makes watching things a bit more comfortable, and also have a proper keyboard for it, which I don't really use
Viewing things on the 10"screen is easier/more comfortable than the 5" one on the phone too