Lenovo ThinkPad Helix vs Dell XPS 12 vs Apple MacBook Air 11:Winner is................................

Lenovo ThinkPad Helix                                                                                                                               The ThinkPad Helix is powered by a third generation Intel Ivy Bridge processor, up to Core i7 and up to 8GB of DDR3 1600MHz RAM. Aiding performance is an SSD of up to 256GB so its performance is top-notch. You’ll be able to choose between Windows 8 and Windows 8 Pro.The Lenovo ThinkPad Helix will be available in an array of spec configurations, but the one we saw  demonstrated was a mid-range example, with a Core i5 processor. Core i7 options will also be available. The ThinkPad Helix uses current Ivy Bridge-generation CULV Intel chips, backed-up by 8GB of RAM and a 256GB SSD. The screen and base are each under 2.0 pounds, but that's on the hefty side for an 11.6-inch system. That said, it's 20mm thin, qualifying for ultrabook status, and can run processors up to Intel's current-gen Core i7.Travel-friendly features include 3G/4G antenna options, NFC chip, and a spill-resistant keyboard.The Lenovo ThinkPad Helix feels like a hybrid roadwarrior. It's reasonably light, especially in its class, offers great build quality and careful attention to detail in its construction. It may not be a beauty, but it's one of the better full Windows 8 hybrid designs out there.            Performance and battery life
A 1.8 GHz processor and 4GB of RAM may seem small on paper, but in practice the ThinkPad Helix is a surprisingly capable machine. Both the Windows 8 tiled interface and desktop ran smoothly on our review unit.
Browsing in either Chrome or Internet Explorer, we could get a dozen tabs going before performance started to chug. This is with the tablet docked in its helpful stand, which provides extra cooling and allows the processor to overclock a little.
The performance enhancement is noticeable, and the fans generate minimal noise. This is by no means a gaming machine, but we were able to play some Half Life 2: Episode 2 with an acceptable framerate.
The stand also provides additional battery life. With its help, we generally got 7 to 8 hours of web surfing and word processing. As just a tablet, the Helix got between 5 and 6 hours. That's not bad at all, certainly better than a Surface Pro, but one can't help but think of what Haswell could've done for this machine.
Price;$1,499                                                                                                                                             VS                                                                                                                                                           Dell XPS 12                                                                                                                                             The Dell XPS 12 is a thin, powerful, very cleverly designed touch-screen convertible that flips into multiple screen positions.This machine’s key feature is a 12.5-inch touchscreen with a native resolution of 1920 by 1080 pixels that pivots inside its aluminum frame—just as on the original. Open the lid, and you can use the computer as you would any other notebook. You simply push the top front or bottom back of the display to pop it out of its frame, and then flip it over and close it to convert the machine into a tabletThe biggest improvement, though, lies in battery life. The Ivy Bridge version of the XPS 12 provided 5 hours of streaming video, but that figure rose to a 6 hours and 45 minutes when we tested again with the same test.The Dell XPS 12 is one of the most powerful Ultrabooks you'll find. It might be heavy and awkward as a tablet, but when you consider the value that's on offer, with the blistering processor, 8GB of RAM and 256GB SSD drive, there's more than meets the eye..
But, For all the hype about touch and tablets with Windows 8, the XPS 12 still works better as a laptop than as a slate. Its battery life is on the low side.
The bottom line: Dell has revamped its rotating Duo laptop concept into the much-improved XPS 12, but like most convertibles, it makes a better laptop than tablet.
Windows 8 (64-bit); 1.9GHz Intel Core i7-3517U; 8GB DDR3 SDRAM 1,333MHz; 32MB (Shared) Intel HD 4000; 256GB Lite-On IT SSD                                                                                                             Specifications
ProcessorIntel 3rd Gen Core i5 3317U / 2.6 GHz
Memory4 GB
Hard Drive128 GB
Operating SystemMicrosoft Windows 8
Display Type12.5 in
Max Resolution1920 x 1080
Graphics ProcessorIntel HD 4000
Weight3.35 lbs                                                                                                                                           Price;$1,199.99                                                                                                                                          VS                                                                                                                                                       Apple MacBook Air 11-Inch                                                                                                                   The Apple MacBook Air is still some kind of evergreen in the notebook world, despite the lack of innovation.The new 11-inch MacBook Air is a little faster and runs even longer, thanks to a small spec bump. We have the same sturdy yet lightweight chassis milled from solid aluminium, and an 11.6-inch TN LCD screen, which stands apart from all other Mac computers and displays - it's the only 16:9 widescreen display in the range. All other Macs made in the past nine years have had 16:10 aspect ratio, a shape that's more versatile for both productivity and entertainment.
But, Apple hasn’t brought over the high-speed SSD interface that it introduced on the 13in MacBook Air and Pro models.The new CPU is a very minor upgrade over last year’s Air and the system is still lacking an SD card slot.
THE BOTTOM LINE While the screen could be sharper, the updated 11-inch MacBook Air is a very light ultraportable that offers great performance and battery life for the price.Apple’s 11-inch Air gets a CPU speed bump and a decent price cut over the already excellent 2013 version. If you have a recent model there's no need to upgrade, but for anyone else, it's now a better deal than ever.                                           Specs:                                                                                                                                                       11.6-inch high-resolution LED-backlit Glossy Widescreen Display
1.7GHz dual-core Intel Core i5 (Turbo Boost up to 2.6GHz) with 3MB shared L3 cache
64GB Flash Storage
4GB of 1600MHz DDR3L Onboard memory
0.11-0.68 inch Height
Intel HD Graphics 4000
720p FaceTime HD Camera
Stereo speakers, Omnidirectional microphone, Full-size backlit keyboard
Up to 5 Hours Battery Timing
1.08 Kg Weight
Price:$899                                                                                                                                                      

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