It's been six months since Lenovo launched the 
ThinkPad Helix at CES, but during that time we've never really stopped talking about  it. Every time we've reviewed a comparable product -- a small-ish PC  that could be used in some sort of tablet mode -- we've returned to the  Helix as a beacon of what could be in this category. All told, the Helix  has had a few things potentially recommending it: it rocks the same  sturdy, well-spaced keyboard you'll find on other ThinkPads and a spec  list that includes NFC, a Wacom pen digitizer and a high-quality,  11.6-inch, 1080p display. Best of all, the Helix can be used in three  ways: not just in tablet mode, but with the tablet inserted either  facing the user or pointed away, a design Lenovo is calling "Rip n'  Flip." It's the sort of versatility we loved so much in Lenovo's 
Yoga line; only this is a more compact machine with a higher-res screen and  pen input. Sounds lovely, right? Read on to see if it's as good in  practice as it is on paper.
Lenovo ThinkPad Helix review
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Look and feel
Take away the keyboard dock, and the Helix looks sort of like the 
ThinkPad Tablet 2,  which in turn looks like any recent ThinkPad. Clearly, the company  knows it has a good thing going with its design and, just as important,  that its entire brand is wrapped up in soft-touch materials, red accents  and sturdy keyboards. Besides, it was a really, really big deal when  Lenovo 
revamped its touchpad layout, so it makes sense the company isn't taking chances on any other part of the design.
  Obviously, the main thing that makes the Helix different from the  ThinkPad Tablet is that it's bigger (adding a heavy-duty Core i5  processor will do that). Also, this has an 11.6-inch screen, not a  10.1-inch one. 
If we're talking about just the tablet, it feels heavy, in the way most tablets above 10 inches feel sort of cumbersome. In the grand scheme of things, however, it couldn't have been much lighter: the Surface Pro, which has a 10.6-inch screen, weighs two pounds, though its smaller footprint admittedly makes it slightly easier to handle. In the strictly 11-inch category, the only lighter Core i5 tablet we can think of is the Acer Aspire P3,  which weighs a similar 1.74 pounds. All of which is to say: if you've  already decided you want a Windows tablet with this kind of horsepower,  you've probably already come to terms with the weight tradeoffs.   It's only when you connect the included keyboard dock that the Helix  starts to feel heavy. The full package weighs 3.8 pounds -- nearly half a  pound more than the 12-inch 
Dell XPS 12 convertible Ultrabook, which tops out at 3.35 pounds. Even Lenovo's own 
Yoga 13,  which has a larger 13-inch screen, weighs just 3.3 pounds, and that,  too, can be used in both laptop and tablet modes, if you recall. There  are some design issues with the dock itself as well, but we'll get to  those in a moment.  
First, taking a tour around the device, you'll find a 5MP camera  around back -- strangely with no LED flash nearby. Also on back, there's  a subtly drawn marking that shows where the NFC sensor is hidden. Up  front, there's a lower-res 2-megapixel webcam for video chatting.  Assuming you're holding this in landscape mode, that top edge is where  you'll find the vent, which makes sense since it's out of the way  whether you have it docked or you're cradling it in-hand. Still focusing  on the top edge, you'll find a slot to stow the included pen, which, by  the way, has the same red TrackPoint-inspired cap as the one on the  ThinkPad Tablet.
  Also on top there's the all-important power / lock button, which is  just recessed enough that you might find yourself using a fingernail to  get at it. Over on the right are the headphone jack, Kensington lock  slot and volume rocker for when you're using this in tablet mode. The  left, meanwhile, is totally blank. Finally, we get to the lower  landscape edge, which is where all the action is. Arranged in a neat  row, from left to right, are a power connector, SIM card tray, Mini  DisplayPort and a USB 2.0 socket. On the back of the keyboard dock, you  get
 two additional USB ports, a DisplayPort and a power connection -- the same USB-like one found on the tablet itself.  The dock
The problem, as we hinted earlier, is that the two pieces make for an  awkward duo. First, let's start with the good. To Lenovo's credit, the  tablet portion latches on sturdily, thanks to six different connecting  points, including two tall, toothy guides at either end. Seriously, you  could grab this thing by the lid if you wanted to (hey, it's your toy)  and the keyboard would stay tightly fastened. The tablet makes a  reassuring little 
click when you snap it in, and it's also easy to release (just press the button on the left edge of the dock, up by the hinge).
  And yet, attaching it in the first place can be an exercise in trial  and error, as those docking guides are narrow and easy to miss when  you're trying to drop the tablet in by feel. Meanwhile, because the  connectors are so darn pointy, they become a liability if ever you  choose to put the dock inside your bag without the tablet inside; make  no mistake, things are 
definitely going to get caught on it.  

Lenovo made some other hard-to-explain design choices too. Starting  with the obvious, there's a flap on the back of the hinge, covering the  fan. Lenovo says the flap is there to redirect air from the fans to help  cool down the machine. The thing is, the vent still gets warm, as does  the entire back side of the tablet. Also, the flap is ugly, and  occasionally gets in the way. (And besides, every other competing tablet  gets by just fine without such a contraption hanging off the back.) In  particular, if you have the tablet inserted face-out (that is, aimed  away from the keyboard), the flap can actually cover the physical Start  button, depending on how you angle the screen in the dock. For instance,  if the screen is more or less upright, the flap is most definitely  going to obscure the Start button, which is a shame since that's one  scenario where you might actually use it -- it's not like it'd be  convenient to reach around and tap the Start button on the keyboard  instead, ya know? To get around this, you could dip the screen back at  more of a 45-degree angle, with the display still facing up, but that's  not ideal, especially not for things like presentations.
  The other bizarre thing about the dock is that unless you already  have the tablet latched in, it's very difficult to push the hinge down  so that it lies flat against the keyboard. You 
could do it that  way, but you'll be met with a good deal of resistance, to the point  where it might actually feel like you're about to snap off that crucial  hinge piece. Take it from us: if you're going to move the hinge, put the  tablet in first.  
Keyboard and trackpad
Before Lenovo overhauled its laptop trackpads, it redid its  keyboards. That was a big change at the time, but now it's old hat. As  on other recent ThinkPads, the Helix has a six-row layout, with  chiclet-style, spill-resistant keys, each of which has a roomy U-shape  design that makes it easy to strike the right one without looking. At  the same time, there's still plenty of space between the individual  buttons and all of the major keys are still amply sized, a feat  considering this is a petite 11-inch machine we're dealing with. Really,  if anything's been shrunken down, it's the function keys where you can  control things like volume and screen brightness. Seems like a fair  trade to us.
  Equally important, the underlying panel is sturdy enough to stand up  to even the most furious of typists. The buttons also offer a good deal  of travel, especially compared to Ultrabooks and standalone keyboard  docks for tablets. No, these buttons might not feel as pillowy as your  old T-series notebook, but they weren't meant to either.  
The Helix is one of the first ThinkPads to ship with Lenovo's  redesigned touchpad, which ditches physical buttons in favor of a giant,  flush surface with different touch zones. All told, it's 20 percent  larger than previous generations, according to Lenovo, thanks to the  freed-up space where the buttons used to be. Not only are there no  discrete left- and right-click buttons anymore, but the ones meant to  accompany the TrackPoint are also hidden. There's no scroll strip to use  with the tracking stick anymore either; instead, there's just a series  of raised bumps at the top of the trackpad, just below the space bar.  
For any of the ThinkPad fanboys who've  been waiting months for the Helix to ship, this change to the touchpad  will be a big one. An alarming one, even.
For any of the ThinkPad fanboys who've been waiting months for the  Helix to ship, this change will be a big one. An alarming one, even.  Lenovo says it has a good reason: that Windows 8 laptops deserve larger  trackpads for carrying out all those native touch gestures, like swiping  in from the top to expose app settings. That, and there are plenty of  potential ThinkPad customers who just don't "get" the idea of a  TrackPoint, much less the buttons that go with it.
  So here we are, with a spacious touchpad that would look right at  home on any other notebook, but not necessarily a ThinkPad. You can  whine that it's unfamiliar, or that Lenovo possibly caved to the wrong  kind of customer. You might be right. But in fact, it works just fine --  once you master the learning curve, anyway. At the very beginning of  our testing period, there were a few times when I managed to hit a  narrow dead zone in the middle of the trackpad, a place where neither  right nor left clicks registered. With a little more hands-on time,  though, that became a moot point; now, I always nail right and left  clicks on my first try. Somehow, then, it's possible to re-train your  fingers to hit the right places, not unlike the way you adjust to a new  keyboard. Practice makes perfect, not that that makes a good marketing  tagline for Lenovo.
  Mind you, the trackpad isn't perfect, but we're having trouble  blaming it on the redesign. For instance, if you're tracking the cursor  with one finger, it doesn't always go where you want it to, but that's  true of many Windows laptops, regardless of who the PC maker is or who  supplied the touchpad. In any event, more complex gestures like  two-finger scrolling, pinch-to-zoom and all the Windows 8-specific  shortcuts (swiping for the Charms Bar, etc.) work just fine.  
Display and sound
Say what you will about the funky keyboard dock and newfangled  trackpad: the display is flawless. For this, its flagship Windows 8  hybrid for businesses, Lenovo chose an 11.6-inch IPS panel with 1,920 x  1,080 resolution, a digitizer for pressure-sensitive pen input and a  400-nit brightness rating. Particularly with the brightness cranked all  the way up, the viewing angles are solid, both on the vertical and  horizontal axes. Even in an office with both harsh overhead lighting and  a good deal of natural light, the screen showed minimal reflections,  despite the fact that it's not actually an anti-glare screen.
  Also, aside from easy readability, we found that colors and contrast  stayed the same even as we viewed the screen from odd angles, perhaps  with the laptop in a lap, or with the tablet off to our sides. That  latter scenario was of particular importance to us, as we occasionally  used the docked Helix as a sort of second screen, a place where we could  browse the internet or load video without disrupting anything on our  primary PC. If that setup sounds appealing to you, too, be glad you  won't have to suffer any washed-out colors with the Helix sitting in  your peripheral vision.
  The sound quality, meanwhile, is actually decent in the sense that  there isn't a huge rise in distortion at higher volumes. Kanye's "I Am a  God" and Eric Clapton's electric guitar didn't sound much worse at  level 100 than they did at 70. Then again, the volume doesn't get very  loud, though it should still be fine for a conference call in a quiet  space. Failing low-noise surroundings, you could always pair it with a  speaker, we suppose.  
Performance and battery life
				
  | 			PCMark7 | 			3DMark06 | 			3DMark11 | 			ATTO (top disk speeds) | 		
				| Lenovo ThinkPad Helix (1.8GHz Intel Core i5-3337U, Intel HD 4000) | 			4,549 | 			3,734 | 						E959 / P520 / X180  			 | 			553 MB/s (reads); 501 MB/s (writes) | 		
			| Acer Aspire P3 (1.5GHz Intel Core i5-3339Y, Intel HD 4000) | 			3,867 | 			3,999 | 						E925 / P503  			 | 			552 MB/s (reads); 524 MB/s (writes) | 		
			| Sony VAIO Duo 11 (1.7GHz Core i7-3317U, Intel HD 4000) | 			4,545 | 			4,807 | 						E1,107 / P621 / X201  			 | 			540 MB/s (reads); 525 MB/s (writes) | 		
			| Sony VAIO Pro 11 (1.8GHz Core i7-4500U, Intel HD 4400) | 			4,634 | 			N/A | 						E1,067 / P600 / X183  			 | 			558 MB/s (reads); 255 MB/s (writes) | 		
			| MSI Slidebook S20 (1.8GHz Core i5-3337U, Intel HD 4000) | 			4,043 | 			3,944 | 						E1,053 / P578  			 | 			484 MB/s (reads); 286 MB/s (writes) | 		
			| ASUS TAICHI 21 (1.9GHz Core i7-3517U, Intel HD 4000) | 			4,998 | 			4,818 | 			E1,137 / P610 / X201 | 			516 MB/s (reads); 431 MB/s (writes) | 		
			| Microsoft Surface Pro (1.7GHz Core i5-3317U, Intel HD 4000) | 			4,673 | 			3,811 | 			E1,019 / P552 | 			526 MB/s (reads); 201 MB/s (writes) | 		
			| Dell XPS 12 (1.7GHz Core i5-3317U, Intel HD 4000) | 			4,673 | 			4,520 | 			N/A | 			516 MB/s (reads); 263 MB/s (writes) | 		
In recent weeks, we've been taking various PC makers to task for  pushing systems into the market with last-gen Ivy Bridge processors. In  the case of the Helix, though, Lenovo might have an excuse: while Intel  is shipping Haswell chips for consumer systems, it hasn't yet released  its business-grade processors. So, unless Lenovo wanted to delay the  Helix even further until the fall, it had to make do with Ivy Bridge.  (If 
you can wait that long, Lenovo says the Helix will get Haswell... eventually.)
  As it is, the 1.8GHz Intel Core i5-3337U CPU, 4GB of RAM and Intel HD  4000 graphics help the performance keep pace with other devices in this  class. We're partly referring to benchmark scores, yes, though the  Toshiba-made SSD also delivers fast read speeds of 553 MB/s, with almost  equally fast write speeds of 501 MB/s. In general, we had no problem  juggling different apps, even after we lost count of how many we had  open. As always, too, browsing in Internet Explorer felt fast with  little to no tiling. Our main concern is with the startup time: it  routinely took us 20 seconds or so to boot into the Start Screen. Heck,  it takes about four seconds just for the Lenovo logo to appear onscreen  early in the boot process.  
				
  | 						Battery life  			 | 		
				| Lenovo ThinkPad Helix | 			5:07 (tablet only) / 7:24 (with dock) | 		
		
			| Sony VAIO Duo 13 | 			9:40 | 		
			| Acer Iconia W700 | 			7:13 | 		
			| Sony VAIO Pro 11 | 			6:41 | 		
			| Dell XPS 14 | 			6:18 | 		
			| Sony VAIO T13 | 			5:39 | 		
			| Lenovo IdeaPad Yoga 13 | 			5:32 | 		
			| Dell XPS 12 | 			5:30 | 		
			| ASUS Zenbook Prime UX31A Touch | 			5:15 | 		
			| Toshiba Kirabook | 			5:12 | 		
			| Toshiba Satellite U845 | 			5:12 | 		
			| Acer Aspire Timeline Ultra M3 | 			5:11 | 		
			| Toshiba Satellite U925t | 			5:10 | 		
			| Lenovo ThinkPad X1 Carbon | 			5:07 | 		
			| Samsung ATIV Book 7 | 			5:02 | 		
			| ASUS Transformer Book | 			5:01 (tablet only) | 		
			| Lenovo ThinkPad X1 Carbon Touch | 			5:00 | 		
			| Sony VAIO Duo 11 | 			4:47 | 		
			| Acer Aspire S5 | 			4:35 | 		
			| MSI Slidebook S20 | 			4:34 | 		
			| Acer Aspire P3 | 			4:33 | 		
			| ASUS Zenbook Prime UX21A | 			4:19 | 		
			| Acer Aspire S7 (13-inch) | 			4:18 | 		
			| Acer Aspire S3 | 			4:11 | 		
			| Lenovo ThinkPad Twist | 			4:09 | 		
			| HP Spectre XT TouchSmart | 			4:00 | 		
			| ASUS TAICHI 21 | 			3:54 | 		
			| Microsoft Surface Pro | 			3:46 | 		
Lenovo claims the Helix can last up to six hours on a charge with  just the tablet, and up to 10 when you add the keyboard dock. As is  usually the case, we got less than that on both counts, just because our  battery life test (video looping with WiFi on) is particularly  grueling. In any event, we got five hours and seven minutes with the  tablet alone, which isn't bad when you consider the Surface Pro didn't  even make it to four hours in the same test. And again, it's a taxing  test, so you can probably squeeze out more than five hours if you're a  little more conservative with your brightness settings than we were. 
With  the dock attached, battery life reached seven hours and 27 minutes,  which is more than any Core i5 Ivy Bridge tablet could last on its own.  (The keywords being "Ivy Bridge" -- who knows what Haswell will do for tablets like these.)   Software and warranty
When you spend nearly $1,700 on a PC -- a business PC, at that -- you  don't expect to be greeted by much bloatware when you boot the thing up  for the first time. Fortunately, Lenovo mostly makes good on that  promise. All we have here is Skitch, Evernote, Kindle, AccuWeather, the  music-streaming service Rara.com and Lenovo Support.
  There's also Lenovo Companion, but we recommend you not click on it.  Maybe even remove the tile from your Start Screen. What it is,  basically, is a portal with shortcuts for Lenovo's blogs and its YouTube  channel. You'll also find offers for things like Zinio's magazine store  and Norton Internet Security. Sort of a waste of space if you ask us.
  All of the various Helix configurations come standard with one year  of coverage, though extended warranties as long as five years are  available too.  
Configuration options
The Helix technically starts at $1,749; though as of this writing  Lenovo's US site is offering a promotion that brings the entry price  down to $1,574. That comes with a Core i5 processor, though a different  one than what's in our unit: an i5-3427U, with a base clock speed of  1.8GHz. Other specs include 4GB of RAM and a 128GB SSD.
  Go a step up, and you get the same specs, just with mobile broadband  built in. That brings the price to $1,869 (excluding any promotions that  happen to be going on). Finally, going with a Core i7-367U processor  also means you get twice the RAM (8GB) so that's something to consider  when choosing which one to buy. Those also have a 180GB SSD, not a 128GB  one. These Core i7 models start at $2,069 (or $2,249 with broadband).  Again, those prices don't include any promotions Lenovo might happen to  be running.  
The competition
The Helix falls into a growing category of 11-inch touchscreen PCs  that either have a detachable tablet or can be used in some sort of  tablet mode. Now that Build has come and gone without any new Surface  announcements, we're inclined to believe the existing Surface Pro will  stick around for at least a little while longer. Like the Helix, that  ships with an Ivy Bridge processor and rocks a similarly sized  (10.6-inch) 1080p display with a Wacom digitizer for pen input. As we've  established, the battery life there isn't as good as on the Helix, and  you don't even have the option of a dock with a second battery built in.  The Touch and Type Cover keyboards do contribute to a lighter total  weight, but they aren't as comfortable as the Helix's keyboard. Neither  of those has a satisfactory touchpad, but then again, nor does the  Helix, so they're even in that respect. There is one way in which the  Surface Pro wins, though, and that's price: the 128GB version costs  $999.
  In Lenovo's own camp, there's the 
Yoga 11S,  which is essentially a smaller version of the Yoga 13. (Don't confuse  this with the Yoga 11, which has an ARM processor and runs Windows RT,  not full Windows 8.) We haven't tested this guy yet, so we unfortunately  can't vouch for things like performance or battery life. What we can  say definitively is that it's cheaper ($999 with a Core i5 CPU and a  128GB solid-state drive), but that the specs are also inferior (1,366 x  768 display, no pen input). Just in terms of form factor, it  accomplishes many of the same things as the Helix, but it's clearly a  consumer device, not a business machine.  
"Innovative" is something of a backhanded compliment, at least in this case where the design is somewhat awkward.
When it comes out later this year, Dell's 
XPS 11 hybrid will be very similar to the Yoga 11S, and should compete against  the Helix too, with a thin, light design and 11-inch, 2,560 x 1,440  display. Until it comes out, though, the closest thing Dell has to offer  is the XPS 12, which recently got 
refreshed with Haswell -- something the Helix doesn't have yet. It's a bit  heavier, even when you factor in the Helix's keyboard, and Lenovo's  machine is definitely more comfortable to use as a tablet. But the XPS  12 has a comfortable keyboard 
and a reliable trackpad, to boot. So it really depends on whether you need a laptop first and a tablet second, or vice versa.
  There's also the 
ASUS TAICHI 21,  which has dual 1080p screens -- one on the lid of the laptop and one on  the inside, above the keyboard, where you'd expect it to be. But with  Ivy Bridge processors, the battery life is pretty terrible, and the  interior screen doesn't even support touch. You might have been  considering this one, but we'd suggest you skip it; the Lenovo Helix and  Yoga both accomplish the whole screen-on-the-outside thing to much  better effect.
  Now that we've breezed through all the major 11-inch hybrids, we'd  ask you to at least consider something with a more traditional form  factor -- i.e., a laptop with a touchscreen. On that front, we're fond  of 
Sony's VAIO Pro 11,  which offers fast performance and impressive battery life, both thanks  to Haswell. It also packs NFC and a 1080p display, along with a sheet  battery option and lightweight carbon fiber design -- all for a  reasonable starting price of $1,150. The keyboard isn't as comfy as the  Helix's, though the trackpad is about on par.  
Wrap-up
Even six months after it was originally announced, the ThinkPad Helix  is the most innovative Windows 8 tablet hybrid we can think of. In a  way, though,
 "innovative" is a backhanded compliment, at least in  this case where the design is somewhat awkward. As it happens, we enjoy  being able to flip the tablet portion over and have the display facing  outwards for presentations and such. But the Dell XPS 12 and Lenovo's  own Yoga line can do that too, and without a complicated hinge that's  difficult to move and likely to cause tangles in your bag. (Don't even  get us started on the Helix's bizarre cooling flap.) Moreover, when you  use this as a full-fledged laptop, it's actually heavier than competing  PCs, even those with larger screens. So consider how often you'll really  use this in tablet mode, and then proceed accordingly.   As much as we might mock the Helix's "Rip n' Flip" design,  though, this product actually still has several things going for it: a  sturdy keyboard, reliable trackpad and a bright 1080p display with wide  viewing angles. Also, it accepts pen input, which most of the other  devices we've mentioned don't, save for the Surface Pro. As a standalone  tablet, it weighs less than any regular touchscreen Ultrabook, and it  even weighs a bit less than other Core i5 tablets, like the Surface. The  battery life is impressive too, if only because Lenovo gives us two  cells instead of one. So it's a good product in many ways, even if we  only end up recommending it to a certain niche (read: business customers  who sometimes need a true tablet with pen input -- not a laptop that  can be used in a clumsy tablet mode). Even so -- and stop us if you've  heard this before -- you'd be better off waiting a few months for a  Haswell refresh. Battery life will be even better, and what's more, that  lofty starting price will seem a little more justified.