The Xperia X10 is, quite frankly, huge and makes the Mini and Mini Pro look even smaller by comparison. If you're a fan of big screens, this is most definitely the handset for you.
Just to recap the specs, there's a 4-inch capacitive touchscreen (480 x 854), 1Ghz Snapdragon processor, microSD card slot for up to 16GB (8GB card will come in the box), Wifi, GPS and 3G, but unfortunately only Android 1.6. Here's hoping for an upgrade around its launch next month.
It of course packs the UI formerly-known-as-Rachael, UX, complete with Timescape and Mediascape features. The former works a lot like Motorola's Motoblur and Samsung's Social Hub, pulling in details from social networks and info from across your phone, so you can see all your communications with one person in one place.
This includes calls, photos, emails, texts, tweets and Facebook convos, which you can filter and use as you see fit.
Mediascape on the other hand will allow you to pull in info for your media content - so if you're listening to an album by Midlake, you could use Mediascape to find other content and details on the band both on your phone and online.
As for the X10 Mini and Mini Pro – they are reportedly the smallest Android phones on the market, and the only differences between the two is that the Pro features a a keyboard (so very slightly bigger), while the plain Mini is all touchscreen.
Sony Ericsson has managed to squeeze rather a lot in to these small shells, with a 2.5 inch screen, 600MHz Qualcomm processor, 5 megapixel camera with flash, microSD slot for up to 16GB storage (2GB card included in the box), 3.5mm jack, Wifi and 3G.
They also pack Android 1.6, and the same Mediascape and Timescape apps as their big brother.
It is quite nice to see a smartphone bucking the trend of bigger is better in smartphones, but that said they did feel quite plasticy, and being so small meant they would be difficult to use if you have chubbier digits.
X10 Mini Pro:
It's also quite strange to see such a small screen, which has lost the clarity you see in most smartphones these days, meaning icons appear slightly blocky and pixellated. I didn't get chance to watch any video playback on the phone, but would be interested to see how good it performs when the phones are released in "Q2" this year.
We'll be pulling in the handsets as soon as we can get our hands on them so keep your eyes on Stuff.tv for a full review, but in the meantime be sure to check out our first impressions video and let us know what you think below.