HP Envy Spectre XT vs Acer Aspire S5 vs Samsung Series 9;Who is Better?

W.A.Khan,                                                                                                                                                                                                                                                                                                                     HP Envy Spectre XT                                                                                                                                                                               Slim and lightweight, the HP Envy Spectre XT is portable, well-built, and easy to use, with a great keyboard.
But, The design doesn't stand out as much as the original Spectre's did, and its battery life won't get you through an entire day. From a premium product, we'd expect a higher screen resolution.
The bottom line: A high-end laptop at a mainstream price, the HP Envy Spectre XT gets much of the look and feel right, with only a few missteps.                                                                                                                                                                                 Specifications
ProcessorIntel 3rd Gen Core i3
Memory4 GB
Hard Drive128 GB
Operating SystemMicrosoft Windows 7 Home Premium
Display Type13.3 in
Weight3.07 lbs                                                                                                                                                                                   Price;$999                                                                                                                                                                                                 VS                                                                                                                                                                                                                                              Acer Aspire S5                                                                                                                                                                                    The Acer Aspire S5 is an incredibly thin and light ultrabook that hides its ports, including Thunderbolt, behind a clever motorized door.
But, That port door, named the MagicFlip, is a potential problem if it ever breaks down. The keyboard isn't backlit, and battery life could be better.
The bottom line: Even thinner and lighter than a 13-inch MacBook Air, the Acer Aspire S5 is a great example of an ambitious ultrabook, held back by a few flaws and its high price.                                                                                                            Specifications
ProcessorIntel 3rd Gen Core i7 3517U / 3 GHz( 2.6 GHz ) ( Dual-Core )
Memory4 GB/ 4 GB (max)
Hard Drive256 GB
Operating SystemMicrosoft Windows 7 Home Premium 64-bit Edition
Display Type13.3 in TFT active matrix
Max Resolution1366 x 768 ( HD )
Graphics ProcessorIntel HD Graphics 4000 Dynamic Video Memory Technology
Optical DriveNone                                                                                                                                                                      Price;$1,399                                                                                                                                                                                 VS                                                                                                                                                                                                                                                                  Samsung Series 9                                                                                                                                                                          A thin, stylish design, long battery life, excellent screen, and a new second-generation Intel Core i5 CPU make the Samsung Series 9 NP900X3A one of the best ultrathin Windows laptops we've ever seen.
But, The Series 9's way-too-high sticker price makes the MacBook Air look downright affordable by comparison; the flexy case design doesn't feel as good as the MacBook Air's, either.
The bottom line: The $1,649 Samsung Series 9 NP900X3A certainly won't be for every wallet, but this light, well-featured, and striking 13-incher is the closest the Windows world will ever come to a MacBook Air. However, its higher-than-the-Air price will be hard to stomach.                                                                    
System configurations:                                                                                                                                                            Windows 7 Home Premium (64-bit) w/ SP1; 1.7GHz Intel Core i5-3317U; 4GB DDR3 SDRAM 1,333MHz; 64MB (Dedicated) Intel HD 4000; 128GB SanDisk SSD                                                                                                                                                    Specifications
ProcessorIntel 2nd Gen Core i5 i5-2537M / 1.4 GHz ( 2.3 GHz ) ( Dual-Core )
Memory4.0 GB / 8.0 GB (max)
Hard Drive128.0 GB
Operating SystemMicrosoft Windows 7 Home Premium 64-bit Edition
Display Type13.3 in TFT active matrix
Max Resolution1366 x 768 ( HD )
Graphics ProcessorIntel HD Graphics 3000 Dynamic Video Memory Technology
Optical DriveNone                                                                                                                                                                         Price;$1,699 / $1,649