Symbian, Android or Windows - Which smartphone OS should you buy?

There's a continuing battle going on between the various smartphone operating systems on the market, but which one's best? Let's take a look at the three front runners.

Sony Ericsson Satio

It's fair to say that the Sony Ericsson Satio is easily one of the most hotly anticipated phones of the year. On the face of it, the big reason for the excitement is its 12 megapixel camera, and whilst that is a force to be reckoned with, there's so much more to the Sony Ericsson Satio. It's the first 'Entertainment Unlimited' phone, and that doesn't just mean it combines Cyber-Shot and Walkman technology. On top of that, the Sony Ericsson Satio is also going to pull in social networking, high quality games and incredible video services to become a one-stop mobile entertainment hub. It promises far more than that, however, as the Sony Ericsson Satio is also powered by Symbian, giving it true smartphone capabilities, which will no doubt include its very own app store.

Motorola DEXT

The first important fact about the Motorola DEXT, and the bit that has made it so talked about, is its interface: Google Android, with MOTOBLUR riding on top. As it's the first Android phone to focus on social networking as its key feature, the Motorola DEXT has garnered an awful lot of trade and consumer interest. It's certainly more of a looker (especially in the interface, the newly designed MOTOBLUR UI) than previous Android phones, and that fusion of enhanced looks and the still-awesome power of Android makes the Motorola DEXT a very compelling phone indeed. If social networking is your thing, this is the phone for you.

HTC HD2

The Sony Ericsson Satio is easily the best camera phone on this list, and the Motorola DEXT has the edge in terms of interface, but why is the third phone, the HTC HD2, so much better? The answer lies within the processor hidden inside the HTC HD2, as it's the first phone in the world to come with a 1GHz chip. Or, in other words, it's little short of a laptop in the body of a mobile phone. So, the HTC HD2 promises to be faster and smoother than any other mobile phone on the market. Ally that with the unique 3D interface running on top of Windows Mobile, and you get a phone that truly is a joy to use. There's also one other fact that can't be denied...

Quite apart from it being hyper-fast, with an incredibly fluid interface, the HTC HD2 also has the biggest screen on the market, coming in at an unbelievable 4.3 inches. That's a lot of real estate on screen, and it means that even previously fiddly menu bars are now finger-friendly, given the massive screen size. And as for the virtual keyboard on the HTC HD2, the extra size makes it little different from typing on a physical keyboard. Add in the rage of impressive features, including a 5 megapixel camera, broadband-fast internet access, a superb music player and GPS, and it adds up to a simple fact: The HTC HD2 is quite simply the best Windows Mobile phone, and maybe even the best PHONE, ever made, and it utterly canes the other two on this list.