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.

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.

Samsung Mobile is aiming - with full force - on smartphone market share and act so not without success. Especially the Samsung Galaxy smartphones receive a lot of attention. Not so long ago Samsung introduced the Galaxy Ace smartphone, a new Android phone targeted on a hip, lifestyle influenced public. The Samsung Ace mobile phone is equipped with a digital camera and a build-in LED flash. The resolution is five Megapixels, sufficient for Facebook and other social media channels.

• Read our full Samsung Galaxy Ace review.

With the introduction of the LG Optimus LG seems to be back on track claiming precious market share. The LG Optimus 2Xx Android smartphone received a warm welcome after it was presented in the beginning of this year. LG was the first to introduce the world’s first smartphone with a Dual Core processor. The powerful Tegra 2 chipset guarantees an optimal Internet and App experience and even multitasking is no longer any problem. Your favorite moments can be captured with the built-in 8 Megapixel camera, including a flash and auto focus.

• Read our LG Optimus 2x review and take a look at our test photos.

The enormous advance of BlackBerry on the consumer market and a few attractive new cell phones have done the brand good. Partly thanks to BlackBerry Messenger, or Pinging, BlackBerry is here to stay. However, the competition has also been busy, and the enormously popular Android operating system and the Apple iPhone do not make it easy for the BlackBerry product Research In Motion (RIM). This makes us extra curious about the user experiences of the new BlackBerry Torch.

• Read our full BlackBerry Torch review.

As a pioneer of Android smartphone suppliers, HTC has developed a wide selection of cell phones with the Android operating system, which gives them a great advantage over the competition. LetsGoMobile has happily reviewed many smartphones. The HTC Desire was the latest in this series. HTC has since extended the desire series with two phones, namely the HTC Desire Z and the HTC Desire HD. In this Desire series, user-friendliness and innovation are priorities. HTC Sense, the special user interface on the Android platform, clearly shows this..

• Read our full HTC Desire HD review.

The tablet concept has already existed for a while, but the tablet only really broke through with the arrival of Apple’s flagship, the iPad. The iPad appeals to a large group of users, the majority of which are consumers. Although Apple has gotten a head start because there was no competition, the industry has since woken up. Samsung is one of those manufacturers that sees opportunity and has jumped into Apple’s wake with the new Samsung Galaxy Tab. Additionally, Samsung is aiming at business users and consumers.

• Read our full Samsung Galaxy Tab review.

Now that many cell phone specifications have become standard, we go a step further, and the importance of a good operating system becomes more and more evident. On the one hand, this is for recognition and ease of use, and on the other hand, functionality and available content. After the arrival of the Apple iPhone, Google also launched a new operating system; Google Android. Now, Samsung is also presenting a standard operating system, Samsung Bada. That may be important for its own identity, but the question is if it is possible to compete with the existing systems.

• Read our full Samsung S8500 review.