Asus' Transformer Book Chi line offers a cheap alternative to the Surface Pro

Computex Asus Transformer Book T300 Chi
Martyn Williams

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Early in 2014 we snuck an unauthorized hands-on with Asus's Transformer Book T300 Chi, the company's newest Windows-enabled tablet/laptop hybrid, and came away impressed. It's slim! It's lightweight! It runs Windows 8.1! It's a blatant, uh, homage to the Microsoft Surface!

Nine months later, at CES 2015, Asus is finally to give the world a company-sanctioned look at the device, alongside the other two members of the awkwardly-named Transformer Book Chi family—the T100 Chi and the T90 Chi.

Work in the front, party in the back

First, it's worth reiterating what we said earlier this year: Despite the presence of Windows 8.1 on the Chi series, these are more like tablets-with-keyboards (see also: Microsoft's Surface) than laptops-that-become-tablets (see also: Lenovo's Yoga line). Tablet-first devices, while thinner and lighter than their counterparts, tend to offer fewer ports and less performance than proper notebooks.

That doesn't mean you should necessarily write them off though. If you for some reason fit into this 2-in-1-needing niche that Microsoft, Lenovo, Asus, and every other manufacturer under the sun is slowly willing into being, the Chi series (and especially the T300) is looking like a damn fine alternative to the Surface Pro—and at a cheaper price.

asus transformer book t90 chi

The T90 Chi.

The $300 T90 Chi is the most mobile of the group, at 7.5mm thick with an 8.9 inch display and a Surface-like keyboard that's more a thin slab than a laptop base. I haven't gotten eyes-on with the T90 yet, but I'm honestly happy to save my vision—the T90 features a dismal 1280x800 display. That sort of pixel density wouldn't have been high end even two years ago when Asus's own Nexus 7 came out, let alone now. Still, the price isn't bad for a Windows tablet with an included keyboard accessory. 

But the T100 Chi is a better offer, featuring a 10.1 inch, 1920x1200 IPS display and an actual laptop-like keyboard while coming in at a mere $400. Asus also joins the "Let's make absurdly niche claims at CES" party by wagering that the 7.2mm T100 is the thinnest Windows-based tablet on the market, and I'm happy to give them that award as long as nobody ever quotes me on it.

asus transformer book t100 chi

The T100 and T300 look basically identical.

It's clear the T300 is Asus's flagship device though, with a 12.5 inch display at either 2560x1440 or 1920x1080 depending on your preference. Snapping the two halves of the device together still leaves it at a slim 1.65 inches, which Asus is quick to point out is thinner than the MacBook Air. And at $800, it's the same price as Microsoft sells the entry-level Surface Pro 3 for sans keyboard.

But there are two catches: storage and performance.

The T100 and T90 rely on 32 or 64GB eMMC storage, which is hardly laptop-like even when compared to the Surface Pro. Likewise, the T300's tiny 128GB SSD won't blow anyone's mind.

On the performance side, according to Asus the T90 and T100 both run on the 1.46GHz Intel Atom Z3775 processor, which turbo bursts up to 2.4GHz when needed. The T300 will include either the brand-new Intel Core M 5Y10 (baseline) or 5Y71 (a tad better) processor. The 5Y10 clocks at 0.80GHz and bursts to 2GHz, while the 5Y71 rests at 1.2GHz and bursts to 2.9GHz.

asus transformer book t300 Martyn Williams

The Asus Transformer Book T300 Chi on show at Computex in Taipei on June 4, 2014

Neither is face-meltingly fast, but there's an upside—both the Atom and the Core M draw very little power, which means very little heat, which means Asus can get away with a fanless design for the Chi series. However, no fans doesn't exactly mean no heat, and I'll be curious to see how the T300's temperatures hold up in real world use. (Even the ultra-slim Surface Pro 3 has a fan.)

Those sorts of questions will have to wait until the full release and review, though. I reached out to Asus to hear when the Chi series will go on sale but haven't heard a hard answer yet. We'll update this article if we learn more.

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