DELL XPS 12 DUO.....

The Duo 12 is a hugely impressive two-in-one device that banishes the weight problem that held the Inspiron Duo back – as well as the not inconsiderable increase in oomph; The XPS Duo 12 features Core i5 or -i7 processors instead of the Atom in the old Windows 7-powered Duo.

It's exactly the kind of device that Windows 8 was built for; great for touch, but it can get out of the way when you need to get some actual work done on the desktop.

Here's the screen fully rotated. Ignore the gaps you can see around the bezel - it's because this is a pre-production unit. The copy of Windows 8 on the unit was also in "test mode" - something we haven't seen before - but presumably it's nowhere near the final version that Dell will ship with the device.

The screen has a Windows button for returning to the Start screen when you're in tablet mode.

"Some of our competitiors think about mobile design and think it's impossible to do a good or great convertible design," said Dell's Sam Burd during this morning's IFA 2012 Dell press conference. "The [XPS Duo 12] combines the power of working with a PC with the ability to consume content in other ways. The two devices in a pretty awesome combination."

iPhone 5... is it worth an upgrade?

The iPhone 5 has a faster processor than the iPhone 4S and this is very noticeable when you use apps. They open straight away, without any lag. Web pages load faster too and the device came out way on top in GeekBench tests. The iPhone 5 scored around the same as its competitor, the Samsung Galaxy S3. Therefore if you want a handset that is lightning fast, then yes it is worth the upgrade.

The iPhone 4S already has a decent camera on both front and back of the device. The iPhone 5 has an 8 megapixel camera on the back and a 1.2 megapixel on the front that is capable of taking HD 720P video. There are noticeable differences with the back camera on the iPhone 5 to the iPhone 4S. The iPhone 5 can focus at shorter distances that the iPhone 4S cannot manage. If you want to use the camera on your phone as your only camera, then it may be worth the upgrade to the iPhone 5.

The iPhone 4S came with a 3.5 inch display with 960 x 640 resolution. However the iPhone 5 beats it with its 4 inch display and 1136 x 640 resolution with 326ppi. The iPhone 5 has a ratio of 16:9, which is superb when watching movies.

The iPhone 5 looks a lot like the iPhone 4S, with some great changes. The new iPhone is lighter and thinner. The iPhone 4S measures in at 115x59x9mm and weighs in at 137g and the iPhone 5 is 112g and measures only 123.8×58.6×7.6m, with just 7.6mm thickness. Some say that the new iPhone 5 is too light though. Both handsets are available in black or white.

The iPhone 5 comes with the latest iOS 6 pre-installed, but this is available for the iPhone 4S. However it can slow the older handset down and drain to the battery has been widely reported. Of course if you upgrade then you have to do without Google Maps.

One big change between the iPhone 4S and the iPhone 5 is the connector. On the old iPhone there is a 30 pin connector and on the new it is the Lightning connector. If you have older accessories these will not work with the new iPhone, unless you get a $29 adapter.

In conclusion the iPhone 5 is naturally the better of handsets, with many changes. It compares with just about every phone on the market at the moment, perhaps with the exception of the Samsung Galaxy S3 as they both have their strong merits. If you are due an upgrade on your iPhone 4S then it would be worth making it. However if you are still in contract you would have to consider whether the larger screen and faster processor are worth the price. Personally, if you’re not due for an upgrade then I would suggest waiting for the iPhone 5S. There are a lot of kinks to work on the iPhone 5 still with many such as the easily scuffed rear and the purple flare not possible to correct with a software update.

MoToRoLa RAZR

When the original Motorola RAZR came out in 2004 it turned the mobile world upside down with its slim profile and impressive design. Motorola sold more than 50 million units of the device, which makes it the all time best-selling clamshell. However, Motorola didn't quite manage to continue riding the enormous wave of success which the RAZR set and inevitably lost momentum.

Now though, the RAZR name is back. This time around the Motorola RAZR doesn't come in the clamshell form factor, but it sure has all the charisma and power to become as huge a success as its predecessor.

Just look at that specs sheet:

Motorola RAZR at a glance:

• General: GSM/GPRS/EDGE 850 / 900 / 1800 / 1900, UMTS 850 / 900 / 1900 / 2100, HSDPA 14.4 Mbps, HSUPA 5.76 Mbps
• Form factor: Touchscreen bar phone
• Dimensions: 130.7 x 68.9 x 7.1 mm
• Weight: 127 g
• Display: 4.3" 16M-color qHD (540 x 960 pixels) Super AMOLED Advanced capacitive touchscreen; multi-touch input, Gorilla Glass
• Platform: 1.2 GHz dual-core Cortex-A9 CPU, PowerVR SGX540 GPU, TI OMAP 4430 chipset
• RAM: 1GB
• OS: Android 2.3.5 Gingerbread
• Memory: 16GB storage, microSD card slot
• Camera: 8 megapixel auto-focus camera with face detection, touch focus and geotagging; Full HD (1080p) video recording at 30fps, LED flash, F/2.4 lens; 1.3MP front facing camera
• Connectivity: Wi-Fi a/b/g/n, Wi-Fi hotspot, Bluetooth 4.0, standard microUSB port, GPS receiver with A-GPS, GLONASS, 3.5mm audio jack, microHDMI port
• Misc: Built-in accelerometer, proximity sensor

As you can plainly see the Motorola RAZR isn't anything short of an Android smartphone powerhouse. There's just so much to like about it and we can't really see any deal-breakers.