London - In our previous article Smartphone Wars: Sony Ericsson Xperia X10 versus Apple iPhone 3GS (2) we have seen Xperia X10 outpunch, outjab and outscore iPhone 3GS in nearly every aspect and rank head-to-head in a few. Has the era when we crown a new smartphone as king has arrived? To find out, read on.

[11] Miscellaneous: Xperia X10 and iPhone have some common features such as accelerometer, Push email, Microsoft Exchange ActiveSync (which allows you to seamlessly stay synchronised with your Microsoft Exchange email server), GPS (with A-GPS support), SMS (threaded view), MMS, 3.5mm audio jack, Digital Compass, Google Maps and 3D games.

With Xperia X10, you have access to Android Market and PlayNow arena from where you can download apps, movies, video podcasts, TV shows, music tracks, games etc.

To set itself apart from the competition, Xperia X10 also promises an intuitive UI by introducing signature social media applications like Mediascape (sort of a one-stop search center for all your media needs. It accesses content from everywhere - your phone, YouTube, PlayNow, etc. - and presents everything for you in an organised and intuitive manner) and Timescape (it manages all your communication with one person in one place by syncing contacts, posts, feeds, messages, e-mails, photos and more - from sources such as Facebook, Twitter and YouTube - and automatically streaming them all to the homescreen, allowing you to access data more easily).

Of course, some other smartphones like HTC HD2 and Motorola Dext have similar features (HTC Sense and Motoblur) but Xperia X10 goes one step further - intelligence capabilities, integrated into Mediascape and Timescape, can automatically recognise connections between contacts, content and media and by recommending alternative ways to communicate or guiding to new media experiences, consumers can discover more in a truly open way. For instance, pressing the new "infinite button" guides you through the connected world, aggregating all your interactions with one person into one view or the intelligent face recognition features recognise up to five faces in any picture, automatically connecting them with your social phonebook and all other related communications with that person.

Xperia X10 also has web feeds, speakerphone, gesture control, flight mode, world clock, and pre-installed useful apps such as Gmail, Google Calender, Google Talk, Google Voice Search and YouTube.

On the other hand, iPhone has many cool features including a landscape keyboard for all core apps; an innovative and useful implementation of cut, copy, and paste; push notifications, an improved call log that shows details like the time and length of a call; a spotlight search for searching apps, e-mail (subjects and to/from lines), music, and more; shake to shuffle music; voice memos; voice command; Nike+ support, support for MMS and tethering, proximity sensor and ambient light sensor.

iPhone also gives you opportunity to access to the legendary App Store from where you can download thousands of apps (for free or a small fee) to unleash the full potential of your device and create an iTunes Store account and shop for and download music, movies, TV shows, audiobooks, video podcasts and more.

iPhone also offers a very useful service called MobileMe, a feature that allows you to remotely track the location of the phone when it goes missing, backup data, wipe data from a lost or stolen phone and restore it in a new one.

Winner: Xperia X10. Features such as proximity sensor, ambient light sensor, digital compass, MobileMe and of course, the App Store, can win iPhone some fans but a smartphone, which can't multitask and doesn't come with pre-installed social media applications, is no good these days.

[12] Power and Battery: Xperia X10 is equipped with a Li-Po 1500mAh battery while iPhone has a built-in Li-Ion battery that promises up to 720 minutes (talk time) and up to 300 hours (standby time).

Winner: Tie. Xperia X10's battery life has not yet been disclosed but we expect it to be similar to that of iPhone.

[13] Colour and Price: Sony Ericsson has still not disclosed the street price of Xperia X10 but the smartphone will be available in Sensuous Black and Luster White. However, it is expected to be priced upwards of £400 pre-tax (if you want the phone SIM-free) which puts it in the same price bracket as iPhone, which comes in black or white.

Winner: Tie. But Xperia X10 will be a sure winner if it is priced below iPhone.

Final Verdict: Xperia X10 wins the bout 9-0. Move over iPhone. Your reign as the undisputed king of smartphones has finally ended. Xperia X10 is now the new king of smartphones. No wonder, Sony Ericsson's betting a lot on it to help turn around its fortunes.