Lenovo IdeaPad Yoga 13 vs HP Envy x2 vs Microsoft Surface Pro :Which is fit for use?

 Lenovo IdeaPad Yoga 13                                                                                                                                                                   The 13-inch Lenovo Yoga was one of the first convertible Windows 8 tablet/laptops.The Lenovo IdeaPad Yoga 13 looks as good as any 13-inch ultrabook, with the added attraction of a 360-degree screen and a laptop body that can fold into a tent, stand, or slate.
But, Tablet mode leaves the keyboard exposed, and the Yoga 13 costs more than standard ultrabooks with similar components.
The bottom line: The Lenovo IdeaPad Yoga 13 is a convertible touch-screen laptop/tablet that most importantly doesn't compromise the traditional laptop experience.                                                                                                                                        Specifications
ProcessorIntel 3rd Gen Core i5i5-3317U / 1.7 GHz ( 2.6 GHz ) ( Dual-Core )
Memory8 GB / 8 GB (max)
Hard Drive128 GB - Serial ATA-300
Operating SystemMicrosoft Windows 8
Display Type13.3 inIPS
Max Resolution1600 x 900 ( HD+ )
Graphics ProcessorIntel HD Graphics 4000
Optical DriveNone                                                                                                                                                                         Price;$989.99 to $1,199.99                                                                                                                                                            VS                                                                                                                                                                                                   HP Envy x2                                                                                                                                                                                    The Envy x2 impressed us. Its outstanding industrial design really shows the potential of a tablet/laptop hybrid. The HP Envy x2 has a clean, comfortable design and feels lightweight in tablet form. It has excellent battery life, and works just as well as a laptop as it does as a tablet.
But, The laptop mode is top-heavy, and the awkward tablet detachment mechanism isn’t perfect; it has limited ports; and a slower Atom processor means in performance it's far behind most ultrabooks, even though it’s priced like one.
The bottom line: The HP Envy x2’s capacity to be a full Windows 8 tablet or dock with a keyboard works as well as advertised, provided you’re willing to live with slower performance at a high price. You’re paying for style.
Windows 8 (32-bit); 1.8GHz Intel Atom Z2760; 2GB DDR2 SDRAM 1,066MHz; 747MB (Total) Intel GMA; 64GB SSD             Processor 1.8GHz Intel Atom Z2760
Memory 2GB, 1,066MHz DDR2
Hard drive 64GB SSD
Graphics Intel GMA
Operating system Windows 8
Dimensions (WD) 11.9x8.1 inches
Height 0.6-0.7 inch
Screen size (diagonal) 11.6 inches
System weight / Weight with AC adapter 3.1 pounds / 3.6 pounds (tablet + keyboard)
Category Ultraportable hybrid                                                                                                                                            Price; $849                                                                                                                                                                                          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