The A1000 is a fantastic smartphone if you're looking for multimedia playback; it's responsive and features top-notch audio and video. Just don't expect to enter huge amounts of text into it.

The O2 XDA IIi keeps many of the features we liked in the earlier model, while also boosting processing power.

The Xda mini is a lightweight, compact, tri-band smartphone packed with features and housed in a perfectly sized case.

The Xphone II bundles lots of features into a compact, sleek design. It would suit phone users needing basic organiser capabilities, but those wanting more comprehensive PDA features should stick to the Xda range.

This model is essentially the same as the Xphone II, with only a few improvements.

A very good phone in terms of features, but way too large and heavy for most people.

It lacks a camera or Wi-Fi support, but makes up for it with its compact design.

The Nokia 7710 will appeal to the multimedia buffs, but if you intend on making a lot of calls, this heavy unit might not be for you.

The P910i is a significant upgrade in display quality and memory storage from its predecessor, but the lack of Wi-Fi support and its expensive price tag count against it.

While O2 has impressed us in the past, the XDA Atom fails to live up to its potential. A small form factor and inbuilt Wi-Fi support fail to compensate for slow processing performance

The mother of all smartphones, this monster has a large price tag to match its large dimensions

A very decent smartphone that is made particularly useful by its Push E-mail support.