The Verge reviews the giant Nokia Lumia 1520:
Samsung and others have proven that there is a market for giant smartphones, warts and all. But that doesn't mean that just any smartphone is better if it's bigger, and the 1520 is a prime example of that. It's bigger and faster than any other Windows Phone yet, but it's not necessarily a better Windows Phone because of that. If all you've ever wanted in life is a Lumia 925 with a magnifying glass on top of it, the 1520 is exactly that. It's a tour de force in resolution and speed, but it's not a great smartphone or even a great replacement for a tablet.
And yet, it'll be a better tablet than any Windows 8.1 RT device. There's something poetic about that.