The Nokia Lumia 900 is the big brother of the Nokia Lumia 800 launched last year. It's bigger in every way, with a display that is a 4.3-inch AMOLED panel, so better for reading websites and emails and we found it worked really well even out and about. It's also running the Windows Phone operating which has been gathering plenty of praise of late and the phone has a look that puts the boring Samsung Galaxy S3 to shame.
The Nokia Lumia 900 sticks to the tried and tested design of the Nokia N9 and Nokia Lumia 800 before it, just on a bigger scale. The design has been tweaked, the charging port has been alerted, for example, and the feel of the polycarbonate body is different, suggesting a tweaked recipe but the standard rounded edges, flat top and bottom with speaker holes drilled in are all present and correct.
The screen is big and bright and uses Nokia's own ClearBlack technology, which means you can use it our doors without having to run for shade like many smartphones at present. Being touchscreen, we also found it highly responsive so getting around is quick and easy.
Nokia hasn't entered the world of dual-core processing yet, so you'll find the same 1.4GHz processor chip as in its earlier phones. That's no bad thing as it's more than capable of handling the OS with ease. We really like the layout of Windows Phone, the Tiles format is easy to view and if anything happens, such as a new Tweet or message from friends on Facebook, it pops up on the screen so you can see it at a glance.
Nokia has done away with the curved glass that made the Nokia Lumia 800, and the HTC One X, such gorgeous phones to look at and use. By comparison, the flat screen isn't as viewable from all angles and it means the homescreen doesn't quite pop out at you in the same fashion.
The 480 × 800 isn't ideal for such a big screen, with some images looking a little grainy but this is a limitation of the Windows Phone OS rather than a design flaw on Nokia's side.
When it comes to the operating system you'll find that while Microsoft has been desperately trying to play catchup with the likes of Android and iOS, there are still plenty of killer apps missing.
The bottom line
The Nokia Lumia 900 is the most impressive Nokia Windows Phone to-date but it stills feels hampered by an OS that doesn't allow for much in the way of true power-user status. That said, it's got a cracking battery life, the finish is fantastic and we anyone looking for a big-screen, easy-use phone will like how it responds in the hand.