The VivoTab RT design is right in line with the last few Transformer releases - everything since the Transformer Prime has looked pretty similar, with a brushed metal aesthetic, chrome ASUS logo, and a mostly flat chassis with ergonomically curved edges. In the VivoTab, the top inch and a half is actually contoured plastic, while the rest of the back is brushed aluminum. The differences are all in the minor details, like the circular brushed aluminum finish from the Transformer Prime and Transformer Pad Infinity being replaced by a horizontal brushing, but the main design of the VivoTab RT is clearly derived from the Transformer line. 

The front is almost identical to the Transformers as well, with one key exception - the capacitive Windows button located beneath the display. That means radiused edges, an ASUS logo silkscreened in the top left corner, and the weirdly off-center webcam. The buttons and ports are all located on the curved part of the chassis, with the power button on the top left corner, the headphone jack and volume control buttons on the right side, power/dock connector on the bottom (also weirdly off-center) along with latch points for the laptop dock, a latch release near the bottom of the left side, and finally the microSD card slot and microHDMI port also on the left side. Thankfully, the rear-facing camera is centered on the back and features a small LED flash alongside it. 

This is the first time I’m seeing ASUS integrate the latch release slider on the tablet itself; previously that had always been located on the hinge of the dock. I don’t understand why they felt the need to locate the webcam and power connector away from the central axis, but it’s just a minor industrial design flaw that irks me and doesn’t affect the functionality in the slightest. Other ID nitpicks - the dummy microSD placeholder is just begging to be lost, and the plastic cover over the micro-HDMI port is fiddly and difficult to get on and off. Uncovered ports are the way to go - they just look and feel cleaner when integrated properly, like on the Transformer Infinity. 

Speaking of the Infinity, the VivoTab uses the same NMT (nano molding technology) that debuted on the top of the line Android device earlier this year. NMT is described by ASUS as a process used to fuse plastic and aluminum particles together at a nano level using injection molding. I did a little bit more digging into the process and found that it involves a few steps. The stamped aluminum piece undergoes various surface treatment processes - first, being dipped in a basic solution to form a very fine etching on the surface - we’re talking nanoscopic scale here, with a surface roughness of 10 to 50 nanometers. The second surface treatment involves immersing the aluminum in a solvent that leaves the material covered by a thin film of amine (organic compounds formed by a basic nitrogen atom with a lone pair). Then a liquid thermoplastic resin is injected into the nanoscale dimples and react with the amines such that when the unit cools, the plastic is very strongly bonded to the original aluminum piece. 

The thermoplastic compounds typically used in the NMT process are polyphenylene sulfide (PPS) or polybutylene terephthalate (PBT) depending on application, and can have a tensile strength of over 1500 psi. Both are highly crystalline engineering plastics, and exhibit significantly better mechanical and thermal characteristics than commodity plastics. The plastic infiltrates the aluminum during the injection molding and forms recesses that allow for a mechanical bond (ASUS uses the analogy of tree roots growing into the ground,) so the result is a composite material that is quite light. It allows internal plastic components to be integrated into the case, things like the internal frame and mounting points for the PCB and other various electronic components. This cuts down on additional part content by basically combining the internal frame with the external chassis, not to mention reducing or eliminating entirely the need for glue and fasteners. This in turn allows for thinner mechanical parts and a lighter and more structurally sound design overall. It’s pretty interesting stuff actually, and HTC was at one point rumoured to be making use of this technology as well. 

I generally had no major issues with the design, except this: it felt too safe. Thin, light, and generally well-built, it does a good job of not making itself noticed. The “if it ain’t broke, don’t fix it” rule applies here, and it’s clear that ASUS didn’t want to mess too much with what has been a very successful design for them over the last twelve months. But in the face of some radical new redesigns for Windows RT and Windows 8 devices, I’d have liked to see ASUS take some risks here.

The dock has seen some updates as well, with each new Transformer shipping an iterated version of the trusty notebook dock. This is the newest yet, with a completely new unibody hinge design amongst other minor changes. I think the biggest difference is the latch mechanism, which has been moved to the tablet body. This gives the VivoTab RT the rather odd distinction of being one of the few slate tablets with moving mechanical assemblies (the Surface, of course, being another notable one). ASUS claims that makes it easier to dock and undock the tablet, which I disagree with, but it’s a minor usage difference. The dock features a 22Wh integrated battery that ASUS claims will extend the battery life of the tablet by another 7 hours. In addition, it has a USB port and the docking port. The 3.5mm audio jack is up at the top right corner, so it’s a little awkward looking when you have a headset plugged in. I’d categorize that as a minor ID flaw too, but it was a decision that was in all likelihood dictated by PCB layout, so I can’t fault them too much for it. 

The keyboard remains pretty similar to what we’ve seen in the past, just with slightly different iconography and a Windows key replacing the Android home button. When docked, the capacitive Windows button on the tablet’s front face no longer works. Considering how difficult it is to press in when oriented as such, that’s not really a loss. The keys are obviously not full size, they’re about the same size as you used to find on netbooks - if you have small or nimble fingers, it’s not hard to get used to at all. I switched between a full sized desktop keyboard, a few different notebook keyboards, and the VivoTab dock without much trouble. Generally, I liked using the docking station, it was convenient, integrates seamlessly, and offers a pleasant typing experience. The amount of battery runtime it offers on top of that is simply awesome too - it’s incredibly liberating to literally never be concerned about whether or not your mobile computer has been charged. If I had an issue with it, it would be this: the dock takes an operating system designed around touchscreen input and puts it into a form factor optimized for mouse-based navigation - a natural segue to the next topic.

Introducing the ASUS VivoTab RT The Windows RT Story
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  • andykins - Tuesday, October 23, 2012 - link

    Nah, I totally agree with Vivek's statement and I don't believe it's in any way inappropriate.
  • lmcd - Tuesday, October 23, 2012 - link

    I don't know what phrase of astonishment to use. He clearly said a Win 8 review is coming. Part of the experience is transitioning between the two modes, which is more specific to this laptablet (my hybrid term for the hybrid machines) and as such should be covered in this review specifically. Windows 8 reviews will come in Windows 8 reviews.
  • andrewaggb - Tuesday, October 23, 2012 - link

    Might not be appropriate, but I strongly agree with his assertion. I'm using windows 8 on various machines and it's not a big deal at all. Truthfully I still prefer the start button because it was less jarring, but the actual start menu was a piece of garbage. I NEVER went into the tree mess to find something, I'd just type and search, and that works the same in windows 8 (almost), except you have to hit windows-w to search settings.
  • dananski - Tuesday, October 23, 2012 - link

    I agreed with this quote and was happy to see Vivek say it. I don't know why there's no option to start on the desktop when booting your PC, but tbh, it takes one click to get there and then you're back on your normal 'workflow' (unless you accidentally manage to open a Metro App and can't find your way out). Is one click a day worth all the complaining?
  • Pirks - Tuesday, October 23, 2012 - link

    right on Vivek! pwn those oldfags, reclaimers,etc

    that's EXACTLY my impression of Metro, glad smart reviewers like Vivek at last stated the truth here

    hehe I'll keep enjoiyng reclaimer's deep sucking of crapdroid cock. don't forget to swallow reclaimer :P RT is pwning ya oldfaggy ass as of RIGHT NOW LOL :)))
  • Pirks - Tuesday, October 23, 2012 - link

    Vivek you're wrong, during recent Q&A with Surface team they clearly stated that they are being run as a profitable business from the start and hence no subsidies on the hardware, nothing at all. Hence the high Surface price of $499 and up. You should read that Q&A before spreading false rumors, thank you :)
  • VivekGowri - Tuesday, October 23, 2012 - link

    Edited to reflect this - overall point is still valid though, they're probably taking back less profit than everyone else by design. And of course, no software licensing fees.
  • lmcd - Tuesday, October 23, 2012 - link

    Why would they make the tradeoff AMD has to make when they had the S4 as an option? Or better yet, the S4 Pro? The timing was perfect! Optimus G released with it, why couldn't the VivoTab?
  • TrackSmart - Tuesday, October 23, 2012 - link

    Great review! One quick addition would make it better: Can you list the combined weight of the tablet with the laptop dock in your opening table? It would be great to quickly compare this to other form factors (i.e. laptops, netbooks, etc.)
  • karasaj - Tuesday, October 23, 2012 - link

    You mentioned that the processor load is kind of high for typing in office for example, or loading programs - how "smooth" is the feeling of the UI? I think you said at one point that Tegra three might have seemed laggy at one point but later it was "anything under Tegra 3 would be slow" so does it seem like Tegra 3 is sufficient to power the tablet/prevent any "annoying" slowdowns?

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