Messaging:
Besides the standard and multimedia messages, the messaging menu also houses the e-mail client, which makes it easier for you to send and receive large files that are not suitable for MMS, like full-sized pictures for example. Entering text is aided by T9 which increases the text input speed. The preloaded templates also are intended to help you save time typing in often used phrases and sentences. What we found weird is that this menu houses a RSS Reader, which is convenient to quickly view the content of a given web site without loading it - we checked phoneArena's news in an instant.
The new thing is that you can manage the messages – assign categories to them and save them either to the phone’s memory or the one of the memory card. It would be appreciated mainly by the texting fans.
Connectivity:


Finally a Sony Ericsson phone capable of global roaming arrived on the market, which means that it can be used in GSM networks all around the world. Thanks to support of tri-band UMTS/HSDPA, 3G is also usable both in Europe and in America, and the K850 will work with no problem in AT&T’s 3G network. There even is some rumors that the carrier will offer it, but this is still not officially announced.
Locally the Cyber-shot phone connects through Bluetooth 2.0 wirelessly or via the USB cable that is in the box. It comes with the standard for all Sony Ericsson phones PC Suite. You can by-pass it and connect the phone as a mass storage device, in order to transfer files to and from its memory.
Internet:
As other new models of the company, the K850 is equipped with full HTML internet browser that loads pages as you’d expect to see them, like on a computer. The complicated phonearena.com homepage isn’t problem for the modern browser.