The Asus ZenBook UX31A is exactly what the first generation of ZenBooks should have been. While it still inhabits a head turning, champagne coloured aluminium chassis, it’s more than just an Ivy Bridge update. Asus’ latest puts in a vastly improved, backlit keyboard and swaps out the Sentelic pad for an Elan, something that was done midway through production of the original Asus ZenBook UX21A adapter. The Elan experience is worlds better in tracking and reliability, and also enables the simultaneous-double-tap gesture, which is interpreted as a right click. The only issue we’ve found with the Elan pad so far is to do with old Windows help files (of .CHM format), where double finger scrolling for some reason also magnifies the page uncontrollably. It’s an vanishingly niche problem, but nonetheless exists.
Running the Zenbook Prime show is a third generation (Ivy Bridge) Intel Core i7-3517U CPU, which is an ultra-low-voltage (17W) CPU with a 1.9GHz frequency (it can go up to 2.4GHz in this Ultrabook in Turbo Boost mode), two cores and Hyper-Threading. It’s a CPU that gives this Ultrabook a lot of power for Asus ZenBook UX31A AC adapter regular office tasks, and it can also be used for transcoding media files (when you want to convert files for use on a mobile device, for example). It’s accompanied by 4GB of DDR3 SDRAM (1600MHz) and a 256GB SanDisk U100 solid state drive, which has a formatted capacity of 220GB. It’s a strong configuration all up, and it allowed the Zenbook Prime to put up good results in our tests.
The ASUS UX31A is an Ultrabook with a Full HD 1920x1080 13.3” display. It is powered by Intel’s Ivy Bridge processor and features an Intel HD 4000 GPU. Having an Intel Centrino N 6205 Wi-Fi module, the Ultrabook is capable of Intel’s Wireless Display technology (WiDi). Unlike its smaller sibling UX21A the UX31A does feature a full size SD Card reader.
Despite the squeaking space bar and a cursor that sometimes skipped all over the screen as we typed, the Asus ZenBook UX32A adapter offers a much better overall user experience than its predecessor. It’s comfortable for lap use, its keyboard is enjoyable to type on and, above all, it’s screen is simply beautiful to look at, whether you’re working on documents, editing photos or watching movies.
ASUS has one of the more well-received Ultrabooks with their Zenbook line, no thanks to its sharp and beautiful all-aluminium chassis with Bang and Olufsen ICEpower audio, and later from their Prime models, a full HD 1920×1080 IPS+ panel even on the diminutive 11.6” UX21A. Today, we take a look at their latest 1.4kg creation with Windows 8 touch capabilities added – Zenbook Touch.
You would not believe the number of registration questions and silly widgets that fire up the first time you start the UX31a. It is such a shame and totally detracts from the otherwise entirely slick experience. The packaging looks great, so does the laptop, so why do this to Windows.
Put to the test with our colorimeter, the Full HD display delivers: the 1032:1 contrast ratio and a maximum brightness of 424cd/m2 are as good as laptop displays get, and the average Delta E of 3.1 indicates outstanding colour reproduction. If we have a moan, it’s minor: the panel’s 6185K colour temperature is some way off the Asus ZenBook UX21A AC adapter, and lends images a warm, rosy tint.
As you might expect, the internal components have also been updated. The older Sandy Bridge processor has been replaced with a new Ivy Bridge Intel Core i7-3517U running at 1.9GHz. With Turbo Boost, it can reach a lofty 3GHz, and Windows will see four separate CPU cores thanks to Hyper-Threading. The ZenBook Prime sped through our multimedia benchmarks, scoring 58 overall, and the 256GB SSD helps speed up boot times and leads to snappy performance.
I have good vision, but even I was straining my eyes a bit to read text at native resolution and scaling. Turning Windows’ scaling up to 125 percent or 150 percent should alleviate the issue for most people, and that small bump doesn’t introduce quite as many problems as does something like 200% scaling. Scaling or no, it can’t be denied that the screen here is head and shoulders above the type of panels usually found in Ultrabooks, and it even beats out the MacBook Air in resolution and viewing angles.
While slightly warmer than its predecessor, the Asus ZenBook UX31A adapter managed to stay pretty cool during our tests. After streaming a Hulu video at full screeen for 15 minutes, the touchpad measured 83 degrees Fahrenheit, the space between the G and H keys was 91 degrees, and the middle of the underside was 92 degrees. All are less than what we consider uncomfortable: 95 degrees.
Retuning for an encore is the same dark lid featuring concentric circles. The 13-inch computer is the same thickness — 0.11 inches in the front, 0.35 inches in the back. It also has the same ports: two USB 3.0, mini VGA, micro HDMI, and an SD card reader. The only noticeably external changes are the screen, which is now super glossy, and the newer Windows logo on the keyboard.
Audio through a speaker grille at the very top of the keyboard tray was predictably thin, despite the Bang & Olufsen ICE Power branding. Audio volume controls are mapped to alternate F-key functions, so you’ll need to hit, for example, Fn+F10 to mute the sound.
Despite the glare and gloss, it has less glare than the competing Samsung Series 7 Ultra with 1080p touch screen: in our comparison video, you’ll note the Samsung looks a little washed out vs. the Asus and that’s because the Asus ZenBook UX32A AC adapter glared like a monster at our video camera, and it really isn’t washed out. The Asus 350 nit display is more than adequate to fight glare in well lit settings and at 50%, it’s almost too bright for in-home use under incandescent lighting. I’ve yet to find a setting where I really want to use 100% brightness.
The CPU performance is not to blame: the Computation and Productivity scores beat all i5 systems (UX31A with i5: -10 %) and stands at the same level as an i7. The System Storage (a sub-score of PCMark 7) grants the ADATA XM11 a score of 5,332 points, which can compete even with the RAID 0 SSD of the Aspire S7 and S5. The Storage score is found by running multiple read and write tests. We explore the score in more detail using the Crystal Disk Mark and AS SSD benchmarks. The grounds for such a weak overall score is the Entertainment score, which is 105% lower than that of the UX31A with i5 and 85% lower than that of the Dell XPS 13 with the same CPU.
The UX31A Touch’s specs are the makings of a high-end laptop: a 1.9GHz Core i7-3517U processor with 4GB of RAM, a 256GB SSD made by ADATA and Intel HD Graphics 4000. Its scores on benchmark tests such as PCMark7 surpassed even similarly configured machines like the Acer Aspire S7, and it offered blazing read and write speeds in the disk benchmark ATTO: a max of 554 MB/s and 523 MB/s, respectively.
The Asus Zenbook Touch UX31A isn’t the perfect ultrabook. Its limited storage capacity and so-so port selection are obvious shortcomings. Even with these flaws, though, it comes close to delivering a superlative Windows 8 experience. Its brilliant, touch-enabled screen, incredibly thin design, and great battery life, make it worthy of serious consideration. Throw in the fact that its $1,100 price tag is on par with its competitors, and it becomes a no-brainer. This is the ultrabook to beat, and it justifiably replaces the Asus ZenBook UX32VD AC adapter as our Editors’ Choice award for high-end ultrabooks.
Specifications:
-1.7GHz Intel Core i5-3317U Dual-Core Ivy Bridge CPU
- 4GB of DDR3 RAM
- 128GB SATA III 6Gbps Solid State Drive
- Integrated Intel HD 4000 Graphics
- 13.3” Widescreen IPS Antiglare Display
- 1920 x 1080 Native Resolution
- 802.11a/b/g/n Wi-Fi, Bluetooth 4.0
- Bang and Olufsen ICEpower Speakers
- Integrated Webcam and Microphone
- Windows 7 Home Premium (64-bit)






