XPERIA X1 - 3G, USB, Touchscreen

The Sony Ericsson XPERIA X1 weighs 5.1 ounces and measures 4.3 x 2.1 x 0.7 inches. Its 1500 mAh lithium-ion battery is rated at up to 10 hours of talk time on GSM networks (6 hours on 3G networks), and up to 580 hours of standby time.

The XPERIA X1's 3-inch touchscreen has a 480 x 800-pixel resolution and a 65K color depth, and it features a full physical QWERTY keyboard that slides out the left side of the mobile phone. In addition to touch controls, this mobile phone also includes a four-way navigator and control buttons at the bottom of the face. The XPERIA X1's user interface is based on a nine-panel grid desktop, and touching a panel opens up the function or application. Remove, replace and add new panels whenever you want. The Sony Ericsson XPERIA X1 comes with a number of panels pre-loaded, and many more are available for download.

With the Windows Mobile 6.1 operating system, the Sony Ericsson XPERIA X1 supports Microsoft System Center Mobile Device Manager, which provides single-point access to line of business and corporate data such as applications, files and other information located on the corporate network. It also provides push email for immediate send and receive on Corporate Microsoft Exchange servers as well as editing of Microsoft Office documents. Additionally, it can handle personal email from POP3, IMAP4, and SMTP accounts.

This mobile phone - Sony Ericsson XPERIA X1, provides Bluetooth wireless connectivity (version 2.0), and includes profiles for communication headset, handsfree car kits, and audio/video remote control. With the A2DP Bluetooth profile, you can stream your music to a pair of compatible Bluetooth stereo headphones. You can connect your laptop (either via Bluetooth or wired USB) and enjoy dial-up networking - surf the Internet, send email, and access files from a server.

P1i - 3.2 MP Camera, Memory Stick Micro M2

The Sony Ericsson P1i features a large 3.2 megapixel camera with business card scanner, 160 MB of shared memory, Memory Stick Micro (M2) expansion, Bluetooth stereo music streaming, FM radio.

This mobile phone - Sony Ericsson P1i, can be used with a GSM network service provider and it provides tri-band connectivity (900 MHz, 1800 MHz, 1900 MHz). It does not come with a SIM card, and it requires that you provide a SIM card for usage with your selected service provider.

The Sony Ericsson P1i is a 3G data-enabled device, compatible with third-generation mobile networks that offer broadband-like transfer speeds - up to 384 kbps, providing quick and easy access to audio and video streaming, Web surfing, multimedia messaging, and email wherever you go. This phone - Sony Ericsson P1i, includes a secondary camera lens on the front that lets you use the P1i as a video phone. During a video call (placed to a compatible phone on a compatible network), you can see a live video stream of the person you're talking to and they can see you. When the only choice around is GSM, the P1i can hop onto a GPRS data link. Alternatively, you can also switch to a Wi-Fi connection (802.11b) when you find an available wireless LAN/hotspot.

Always being connected while on the move is now a normal part of working life. The Sony Ericsson P1i gives you the ability to handle your corporate or personal emails, contacts and calendar wherever you are. It offers support for a broad range of push email services including Exchange ActiveSync and BlackBerry Connect and allows for remote wiping of email and PIM data - something critical in the event of the phone being stolen or misplaced.

Because the Sony Ericsson P1i is a Symbian smartphone, it features solid integration of phone, contacts, and calendar applications that can be easily synchronized with other devices and services, making it very easy to bring your office with you wherever you roam. Easily edit documents you receive as attachments to emails, or that you have stored on memory card. The P1i lets you read and edit documents on the move, whether Microsoft Word, PowerPoint or Excel. Or use other tools, such as the alarm clock, a stopwatch, task and notes applications, a sound recorder, and a file manager.

Z310a - 14 MB Memory, Web browsing

The Sony Ericsson Z310a has all the bases covered when it comes to messaging. Support is built in for sending and receiving text, graphics, and sound via messages. When used in combination with the phone's built-in camera, MMS opens up a whole new world of messaging fun (carrier messaging charges may apply). Instant messaging is also supported and the phone ships with a built-in email client.

Getting on the Internet is easy with this mobile phone - Sony Ericsson Z310a, as it supports the GPRS protocol. When used with a carrier data plan and the phone's USB or Bluetooth data capabilities, the phone can be used as a wireless modem for laptops and PDAs. There's also a built-in Web browser for wireless downloads and mobile Web browsing. T9 text entry, a technology that makes it easier for people to enter words and text on handsets, is built into the unit - a plus for mobile email and text messaging users.

A number of handy software tools are bundled with the Sony Ericsson Z310a, including a voice memo recorder, a calculator, a calendar, and an alarm clock with a timer and stopwatch. Sony Ericsson Sync Station software lets you synchronize your Microsoft Outlook calendar, contacts, notes, and tasks with your phone.

This mobile phone - Sony Ericsson Z310a, was designed for serious fun. The built-in VGA camera captures stills and video to the phone's 14 MB of internal memory. Picture effects such as a night mode, white balance and brightness control, and a self-timer are also included. The Sony Ericsson Z310a allows for custom screensavers, backgrounds, and themes to be set up to fit your personality.