Final Words

With the exception of the SSD and Windows 7's unfortunate lack of elegant DPI scaling, the Zenbook Prime is the epitome of Ultrabook perfection. It has all of the build quality that we loved about the original Zenbook, with almost none of the quirks.

The display is truly in a league of its own. Color reproduction, brightness and contrast are all exactly where they need to be. Viewing angles are similarly perfect. While the original Zenbook's panel was frustrating, the Prime's display is wonderful to look at. Whether browsing the web or watching movies, it's just awesome. The biggest question is whether or not 189 PPI is too much for you. On an 11.6-inch screen I expect that not everyone will be fond of the resolution, but if you've wanted a ton of desktop space on a small display then the new UX21 will be everything you've been hoping for. I suspect more users will be happy with the 1080p IPS panel on the 13.3-inch UX31 however. I'll try to post an update in the coming days with some Windows 8 experience to see if that makes for a better fit. Kudos again to ASUS for working very hard to be competitive in this space, despite not having the purchasing power or control over the supply chain that Apple does.

The improved keyboard, is like night and day compared to the previous version - with a backlight to boot. The trackpad is also improved, although at the risk of overusing the Apple comparison I will say that it continues to be a hair behind what Cupertino has been able to deliver. The problem there is likely a lack of control over the software stack, a benefit reserved for vertically integrated companies.

Wireless performance and functionality are both improved over the original Zenbook and are, at least on paper, equal to Apple's MacBook Air. The move to a 2x2:2 802.11n setup with 5GHz support easily doubles WiFi performance compared to the original UX21. The use of Intel's Centrino Advanced-N WiFi stack enables WiDi support, which can be very useful on a notebook.

The convenience of two USB 3.0 ports, courtesy of Intel's HM76 chipset, is a welcome improvement as well.

Overall, I'm glad to see that ASUS is focusing more on the tangibles and user experience than just on shipping well engineered products. It's hilarious that out of all of the players in the notebook and tablet spaces combined, that ASUS seems to be one of the only ones (if not the only one) actually trying to go after Apple.

While I'll save the truly final verdict for when ASUS gets me shipping hardware, chances are if you've been waiting for the perfect 11-inch Ultrabook - the Zenbook Prime UX21A is it.

Battery Life, Configurable TDP, Thermals & Noise
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  • rast20 - Tuesday, May 22, 2012 - link

    Different IVB CPU. We can't see it (both configs only feature "ULV IVB") because it's still supposed to be secret, but I'd guess one is i5 and the other is i7.
  • AmdInside - Wednesday, May 23, 2012 - link

    The fact that it features an IPS display makes it an easy choice over a Macbook Air and I personally love both Win7 and MacOSX so it is not about OS. I wish I had not just purchased a projector or else this would be on my shopping list right now.
  • ImSpartacus - Wednesday, May 23, 2012 - link

    Over a 2011 Macbook Air, sure.

    I'm reserving judgment until I see the 2012 models. As Anand mentioned, ASUS wouldn't've rushed the Zenbook Prime review units if they didn't have to do it. We won't be waiting long.
  • cwcwfpfp - Wednesday, May 23, 2012 - link

    Thanks for the thorough and insightful preview Anand. By far the most informative of all the previews/hands-ons for the UX21A I've read.

    I am going to add my voice to those pointing out the 4GB limit. While I think those saying 4GB won't be enough for gaming are a being unrealistic, I do think it is realistic to want more RAM options for other reasons. Right now 4GB should be just fine, but do you guys really see it being sufficient 2 years down the line? I say this as a graduate student often on the move who would like something light to carry around and do work on. So I do foresee having multiple applications running at once and would love more RAM for future-proofing.

    I also have my own issues with the keyboard and touchpad layout - basically I think they went too far in borrowing elements of the MacBook Air here and suffer from form over function. Not a fan at all of the clickable touchpad - much prefer dedicated left/right buttons (and even additional buttons above the touchpad would be nice). Also would like to see dedicated page up/down keys - preferably right above the arrow keys. This is more of a personal preference though. I'm sure a fair number of people will disagree with me on that.

    That said, overall the UX31A/21A looks like the ultrabook to beat right now. In fact I will likely pick up a UX31A when it comes out, despite my minor complaints above.
  • SignalPST - Wednesday, May 23, 2012 - link

    Can you test the WiDi feature on the Prime? I've heard that version 2.0 supports 2 individual display outputs at 30fps or 1 output at 60fps.

    Also, since IVB supports max 3 display outputs, can you output both to the microHDMI and miniVGA, and keep the main LCD active as well?
  • IntelUser2000 - Wednesday, May 23, 2012 - link

    I think that's with WiDi 3.0, which will likely come with updated HD Graphics drivers. WiDi 2.0 didn't come with Sandy Bridge launch, only with updated drivers.

    Also it says on one Ivy Bridge presentation that you can output to two additional monitors using HDMI and Displayport.
  • SignalPST - Thursday, May 24, 2012 - link

    Hmm... you're right. Hopefully we'll get to see some of that action on the Prime.
  • ssj4Gogeta - Wednesday, May 23, 2012 - link

    "life is short, I draw the line at spending it testing claims of 150 day standby battery life"

    You forgot you' have to measure it three times then take the average. :-P
  • Pantsu - Wednesday, May 23, 2012 - link

    Hopefully the 13" models won't be overpriced where I live, since this could be my next laptop. I was afraid the 1080p panel would be only available for $1500+ models.

    The W7 scaling is probably why most laptop manufacturers didn't want to offer 1080p option. Luckily Windows 8 should fix that issue too.

    I'm still debating though whether I want an ultrabook or if I could do with a standard voltage model with discrete graphics, as long as it is lighter than my current white macbook. I don't need an optical drive or ethernet, but neither do I necessarily need the laptop to be ultra thin and light. Looks like I'll wait until back-to-school season until I make my pick though. There should be a good amount of choices available then.
  • ijozic - Wednesday, May 23, 2012 - link

    I don't understand why Asus designs their Zenbooks pretty much like MB Airs? Personally, I find the Apple laptops' looks overly sterile so this makes the Zenbook a no choice for me (unfortunately).

    My biggest functional gripe with this choice is that they are copying the side profile design of the case - IMHO, if they'd made a case with a uniform thickness, they'd have had room for more ports (e.g. more USBs, SD card reader slot, maybe even a thin express card slot), plus extra battery capacity.

    Also, a 1600x900 screen would seem as a more usable choice and thus it would be nice to have it as an option. Well, at least the screens are not glossy as on the Apple..

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