Asus Eee Slate EP121 vs Lenovo ThinkPad X220 Tablet vs Microsoft Surface Pro:Best performer is............................

Asus Eee Slate EP121                                                                                                                               This Windows 7 tablet is aimed far more at professionals than those looking for their daily hit of Angry Birds. The 1,280x800 display resolution looks sharp and is large enough to watch native 720p video or browse the web with minimal horizontal scrolling. High Definition playback was impressively smooth thanks to Intel’s integrated graphics, which can also output to an external display using the mini-HDMI port.  With a sharp design and a powerful Intel Core i5 CPU, theAsus Eee Slate EP121 is a Windows tablet that doesn't feel like a toy.

but,The battery life is terrible. While we accept that this is due to the high-performance CPU and large screen, it doesn't make it a particularly easy pill to swallow. Starting at about $1,000, this is a lot more expensive than some other popular tablets, and no matter how good the hardware, Window 7 just isn't made for fingertip input.

THE BOTTOM LINE Asus has a fresh take on the oft-maligned Windows tablet in the fast-running Eee Slate EP121, a touch-screen slate coupled with its own Bluetooth keyboard.                                                 Key Features: 12.1in 1,280 x 800 IPS display, Gorilla Glass ; Intel Core i5-470UM, 4GB RAM, 64GB SSD ; Capacitive screen, Wacom digitizer with stylus; USB 2.0 and mini-HDMI, Bluetooth; Windows 7 Home Premium 64-bit

Manufacturer: Asus

Price:$999

VS                                                                                                                                                     Lenovo ThinkPad X220 Tablet                                                                                                                   The ThinkPad X220 Tablet is Lenovo’s greatest convertible laptop. This Windows 7 tablet features a 12.5-inch display, Wacom digitizer, and Intel’s new Sandy Bridge processor. Classic ThinkPad design in a compact package, amazing battery life, and the latest Intel processors make the Lenovo ThinkPad X220 a standout travel laptop. The physical keyboard on the ThinkPad X220 tablet is an industry best, providing one of the most comfortable typing experiences of any laptop. It's also spill-resistant, designed to survive up to 4 ounces of liquid spilled directly onto the keyboard. In addition to the touchscreen, you also have two other pointing devices: Lenovo's signature red pointing stick and a revamped touchpad, which incorporates a second pair of mouse buttons into the touchpad. That touchpad also supports the same gesture controls available on the touchscreen, including Lenovo's own SimpleTap user interface. The ThinkPad X220t is available with two different IPS screens. Both have a resolution of 1366x768 pixels and consequently a dot density of 125 dpi, as well as an LED backlight that allegedly supplies a brightness of 300 cd/m2 (300 nits). The gorilla glass screen, available for an extra charge, is described as an outdoor display without multi-touch support.

but,The keyboard is an old-fashioned layout that looks a world away from the sleek black isolation-style keys seen on an HP Envy 17 or Macbook Pro. Screen rotates only 180 degrees in one direction. Gets a bit hot when stressed.

The touch-pad-pointing-stick combo remains an awkward compromise, and as with most ThinkPads you're paying a hefty premium for the sturdy case and business-friendly software.

THE BOTTOM LINE For a business laptop, this is the gold standard. Everyday users will want to look elsewhere, but the ThinkPad X220 is one of the best choices for the business executive. The Lenovo ThinkPad X220 packs in a new Intel Core i5 CPU and can run all day (depending on how you use it). With a 12.5-inch display, it's just a bit smaller than a 13-inch laptop, and it feels like an excellent compromise for frequent travelers.                                                                                                                                     Key Features: Convertible tablet laptop; 12.5in, 1,366x768 IPS swivel screen; Capacitive touch and Wacom digitizer input; Nearly seven hours battery life, 13 hours with slice; Core i5-2520M Sandy Bridge CPU

Manufacturer: Lenovo                                                                                                                     Price:$1299                                                                                                                                             VS                                                                                                                                                         Microsoft Surface Pro                                                                                                                                 Making your mind up about the Surface Pro is less about what it is and what it does and more about what you want out of a tablet. As a hybrid PC it's an undeniable compromise - but that's no bad thing.The Microsoft Surface Pro fits a full ultrabook experience in a compact 10-inch tablet. Thanks to the ingenious Type and Touch covers, it offers a comfortable interface and typing experience. The clean, crisp design and sharp 1080p screen rise above the competition.

But, The battery life is disappointing, and more ports would be nice. The 64GB model barely has any free storage. It costs as much as a regular laptop, especially because the cool keyboard cover isn't included by default.

The bottom line: The Surface Pro's gutsy design successfully reinvents the Windows 8 laptop by cramming an ultrabook experience into the body of a 10-inch tablet. Those wanting to go all-in on the tablet experience won't regret buying the Surface Pro, but we're holding out for a future, more polished generation of the device.

Windows 8 Pro (64-bit); 1.7GHz IntelCore i5; 4GB DDR3 SDRAM 1,600MHz; 32MB (Sharedl) Intel HD 4000; 128GB Micron SSD                                                                                                  Specifications

Release date02/9/13

Display type10.6 inColor TFT active matrix - Yes

OSMicrosoft Windows 8 Pro

RAM4 GB

Processor3rd Gen Core i5Intel

Wireless connectivityIEEE 802.11nIEEE 802.11bIEEE 802.11aIEEE 802.11g

Dimensions (WxDxH)0.53 in10.8 in 6.8 in

Weight903 g                                                                                                                                               Price;$899.99