Apple announced it has sold over four million of its new iPhone 4S, just three days after its launch on October 14. In addition, more than 25 million customers are already using iOS 5, the world’s most advanced mobile operating system, in the first five days of its release, and more than 20 million customers have signed up for iCloud, a breakthrough set of free cloud services that automatically and wirelessly store your content in iCloud and push it to all your devices. The Apple iPhone 4S is available today in the US, Australia, Canada, France, Germany, Japan and the UK, and will be available in 22 more countries on October 28 and more than 70 countries by the end of the year.

New Nokia cell phone introduced - Nokia has launched the Nokia X2-05 mobile phone. The Nokia X2-05 handset comes with the new Nokia Browser, which uses Nokia’s own compression technology to deliver fast internet at a fraction of the bandwidth, and cost of other mobile phones. The Nokia X2-05 mobile phone also comes with the Nokia Store for access to thousands of apps. The new Nokia mobile phone is actually the most affordable cell phone in the world to offer a built-in Store for apps and other content downloads and dedicated preinstalled social networking apps.

New Nokia mobile phone announced - Nokia has introduced the Nokia C2-05 cell phone. The Nokia C2-05 comes with the new Nokia Browser, which uses Nokia’s own compression technology to deliver real mobile internet pages quickly and at a fraction of the bandwidth, and cost of other phones. The Nokia C2-05 mobile handset also comes with the Nokia Store for access to thousands of apps. The new Nokia mobile phone is actually the most affordable phone in the world to offer a built-in Store for apps and other content downloads and dedicated preinstalled social networking apps.

New Symbian Belle Nokia 603 Smartpone with NFC support - Nokia has launched the Nokia 603 Symbian smartphone, a colourful, affordable, no compromise mobile handset preloaded with the latest Nokia apps and featuring single-tap pairing, sharing and tag reading with NFC. Alongside the Nokia 603, the Nokia Luna Bluetooth Headset completes the NFC-enabled easy pairing experience in an affordable retail package. The Nokia 603 Symbian Belle smartphone is designed to appeal to first time smartphone users and those upgrading from older mobile phones, particularly existing users of Nokia smartphones who will welcome a handset that offers all the latest technology and features in a package that is still uniquely Nokia.

On the outside of the iPhone 4S you will not directly observe any differences compared to its popular predecessor, the iPhone 4. But appearances are deceiving. The Apple iPhone 4S uses the new iOS 5 operating system, offers a dual-core processor, intelligent assistant Siri and a further improved 8 megapixel digital camera. The dual-core A5 chip image processor makes the iPhone 4S an extremely fast smartphone. With the intelligent assistant Siri you can always and everywhere ask for help. Siri is smart enough to understand what you mean.

• Read our full iPhone 4S review.

Sony-Ericsson Xperia Arc review - The front of the Sony-Ericsson Smartphone is completely black with three keys on the bottom. The side has a 3.5mm headset connection, the volume key, camera key and the connection for the charger. The power key and a micro-HDMI connection are found on the top of the Sony-Ericsson Arc smartphone. After unlocking the screen, one of five screens appears. All main screens can be personalized with widgets, shortcuts and folders. By simply pushing the main screen and holding, the settings appear with which you can select their arrangement..

• Read the full Sony Ericsson Arc Smartphone review.

One of the improvements of the compact and light Samsung Galaxy S2 smartphone compared to its predecessor, the Galaxy S, is the digital camera feature. The Samsung Galaxy S2 smartphone features a 8 Megapixel camera with a 4x digital zoom lens, autofocus and a powerful LED flash. The large and clear Super AMOLED Plus LCD screen makes it real fun to photograph with the Samsung Galaxy S2. But the camera function on a smartphone is quite advanced these days, this requires a little more time to get known with the operation of the camera application. Here are some photography tips for photographing with the Samsung Galaxy S2.

New Samsung Transfix Android Smartphone - Cricket Communications, a provider of wireless services and Samsung Telecommunications America introduced the Samsung Transfix smartphone (Model: Samsung SCH-R730). The Samsung Transfix is the latest in Cricket's line up of Android smartphones and is packed with many great features in a sleek design. "We are excited to offer another Android Gingerbread Smartphone, the Samsung Transfix, to Cricket's network," said Todd Pendleton, chief marketing officer of Samsung Mobile. "We continue to work with Cricket to provide customers devices to fit their needs, and the Samsung Transfix is an outstanding messaging smartphone."

HTC Sensation Smartphone review - The first impression of the HTC Sensation smartphone is pretty good. The HTC smartphone is very similar to the HTC Desire, due to the rounded corners, except for a set of four touch keys on the bottom. The screen is large and next to power button and volume keys, a headset connection and a microUSB connection are found. I personally do not find the back very appealing, due to all the colors and stripes, but the HTC Smartphone is comfortable to handle. The HTC Smartphone boasts 7 main screens, in which the user can place several shortcuts and Widgets.

• Read the full HTC Sensation Smartphone review.

Samsung Galaxy S2 sample photo gallery - During the MWC 2011 in Barcelona, Samsung Mobile launched the Samsung Galaxy S2 handset. The Samsung Galaxy S2 is a stylish, slim and light weighted smartphone with a 1.2GHz dual-core processor and a large, Super AMOLED Plus LCD display. The Galaxy S2 mobile phone operates on Google Android 2.3 Gingerbread and is equipped with an 8 Megapixel camera with camcorder function to record Full HD video clips. The Galaxy S2 handset is equipped with a 2 Megapixel front camera to enable video chats and self-portraits.

• Read our full Galaxy S2 review.