Display Analysis

Although Chuwi is not the only manufacturer to offer an IPS display in a laptop at this price point, it’s one of only a few. Almost every low-end laptop comes with a TN panel, and for those who have already forgotten the past, TN displays offer terrible viewing angles, generally poor color reproduction, and contrast shifts that can make them a struggle to even use. Chuwi, by choosing the more expensive IPS panel, has instantly made the LapBook 14.1 a much more enjoyable device to use. All other aspects aside, nothing is used more than the display, so improving the display helps in every single situation.

The LapBook 14.1 has a matte coating on the display, which helps with glare even if it does create subpixel distortion, but matte works well on a notebook like this, especially since they wouldn’t be able to afford the best anti-glare coatings on a device at this price point.

In addition to the IPS panel, Chuwi has also gone with a 1920x1080 resolution display, when the vast majority of notebooks in this market ship with just 1366x768 displays. The improved clarity, as well as increase on-screen real estate, is very welcome, especially on a 14-inch notebook where lower resolutions can be very painful.

But, as usual, there’s more to a display than just the panel type and resolution. The Chuwi LapBook 14.1 was run through our display testing as well, with the newer more stringent testing for 2017, which includes 4-bit steps on both grayscale and saturation to more accurately portray what the panel is doing. We use SpectraCal’s CalMAN Business software with a custom workflow, along with the X-Rite i1DisplayPro Colorimeter for brightness and contrast readings, and the X-Rite i1Pro2 Spectrophotometer for the remainder of the tests.

Brightness and Contrast

Display - Max Brightness

Display - Black Levels

Display - Contrast Ratio

Our first test is to check the brightness, and to test the static contrast ratio at maximum brightness. Here, the Chuwi does relatively well on contrast, with just over 1100:1, thanks to good black levels, but the overall brightness of the panel is much lower than a typical notebook. To save costs, Chuwi must have gone with a less expensive backlight. 207 nits is fine for indoors, but even with the matte coating, it would be less than ideal if used outside. For those that are curious, the minimum brightness is a mere 3.72 nits, which is very dim, and would make it well suited to use in a very dark environment. In addition, the brightness adjustment was fairly granular, unlike the HP Stream which only moves in large steps.

Grayscale

SpectraCal CalMAN

Display - Grayscale Accuracy

The grayscale results are also less than spectacular, with an overall dE2000 of just over 4, but with error levels approaching 6 for anything around 50% white and up. The gamma curve is also far from the ideal 2.2 value, and the amount of red drops significantly by the time you hit 100% white. Still, it’s a decent result for a sub-$300 laptop, and a good margin better than the TN panel in the HP Stream which has an average error level coming close to 12. The white point is also much closer to the ideal 6504K, without the noticeable blue shift in many devices. Although it could be better, it’s a perfectly fine start for this class of machine.

Gamut Accuracy

SpectraCal CalMAN

Display - Gamut Accuracy

We don’t normally bother with the gamut accuracy, since the same points are tested in the Saturation tests, but it’s easier to point out here where the issues are with this panel. As you can see in the image, blue, and red, are both well short of the 100% sRGB gamut targeted, which also pulls magenta well short too. With these results, the panel only hits about 60% of the sRGB gamut, which is obviously not ideal. The main reason for this would be the same reason as the low brightness, which is an inexpensive backlight, which can’t recreate the entire sRGB space. When you try to hit a price point of less than $300 for a laptop, there are going to be compromises, and here is one. But if I had to choose between 100% sRGB with a TN panel, or 61% with an IPS panel, I’d choose the same as Chuwi did every single time.

Saturation

SpectraCal CalMAN

Display - Saturation Accuracy

Since we already know the display can’t hit the entire sRGB color space, it’s not a big surprise to see the saturation test having a poor result, and the lack of blue and red is easily seen here as well. In addition, what colors are available are also shifted off the correct points, so the overall result is a poor 7.12. Still, this is only slightly behind the ASUS UX305, which retailed for $699, and it is a far bit better than the HP Stream 11’s TN display and its terrible accuracy.

Gretag Macbeth

SpectraCal CalMAN

Display - GMB Accuracy

The Gretag Macbeth test is the most comprehensive, targeting many more colors, including the important flesh tones. Here we see a bit of a reversal, and the Chuwi LapBook ends up with a pretty solid result of 5.03. It’s still well over the maximum result of 3 where errors are noticeable, but you can see, that despite it being the second cheapest device in the graph, it’s far from the worst result. Looking at the comparative color comparison for the Gretag Macbeth tests gives a more visual indication of the shortcomings of the display. There is definitely a shift off white (thanks to the lack of reds) and the color saturation is well short of what is being requested of the display.

Display Conclusion

Going into this, it would have been unfair to expect a perfectly calibrated, 100% sRGB device, when Chuwi is competing against devices with much worse displays. The lack of saturation and grayscale errors are not ideal, and they could be corrected, but this would incur a cost which would certainly bump the price of the LapBook up. Compared to the Microsoft Surface 3, the display really can’t compete, but that tablet cost almost double what the LapBook does, when the Surface 3 was available.

It’s commendable to see a manufacturer throw a wrench into things. No longer should we expect to see low quality, hard to use, TN displays, even if the notebook is inexpensive. Chuwi has pulled off a very great display for the price, with an IPS panel, high resolution, and reasonable color accuracy.

GPU and Storage Performance Battery Life and Charge Time
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  • BrokenCrayons - Friday, March 10, 2017 - link

    Chuwi hits all the right specifications for RAM and storage space that I'd like to see in a budget laptop and being fanless is nice too. I'd actually prefer a 11.6 inch screen and a 1366x768 screen because, for a small and cheap portable, 14 inches is actually more than I'd need and I'd rather push fewer pixels with the relatively weak GPU. Some of the touchpad and heat concerned expressed in the Amazon review section are a bit off-putting as well and I don't like an all white system. I just with HP would offer up a 64GB version of their Stream 11. If they did, I'd be falling all over myself to buy one.
  • DanNeely - Friday, March 10, 2017 - link

    According to what I found the really cheap windows license comes with a 32GB SSD requirement from MS. Assuming that's still the case 64GB would require HP to charge nearly $100 more for $10 of hardware, Chuwi is probably cheating MS to hit this price with 64GB.

    http://www.cnx-software.com/2016/09/02/hardware-re...
  • Bullwinkle J Moose - Friday, March 10, 2017 - link

    Doubtful that 32GB is really an MS requirement but more likely the minimum recommended size for a boot drive

    I've restored Win 8.1 32-bit to 16GB and 64-bit 8.1 to 20GB boot partitions before

    32GB is likely the smallest SSD boot drive you will see in actual use

    If I had problems booting Windows from the internal M.2 slot, I would run Windows to Go from the USB3 port which is fast enough for this class of processor and can then easily switch to a Linux thumb drive whenever I like

    A 256GB Corsair GTX thumb drive would boot Windows a hell of a lot faster than that internal 64GB eMMC drive anyway and provides better security for my data

    For example, anyone stealing the laptop would have an empty internal drive while my data remains safe in my pocket until the insurance replaces the hardware
  • DanNeely - Saturday, March 11, 2017 - link

    I'm pretty sure it's legit. That was just the 1st cite I found, but matches what I've seen a few other places since W10 launched. MS has offered heavily discounted windows installs to low end computers since the initial linux based netbooks appeared almost a decade ago. In one way or another they've always limited it to the lowest tier of systems. The fact that mainstream makers either don't offer 64GB varients or charge prices significantly above the cost of the extra flash (eg the HP stream is $200 vs 260 on Amazon) is strongly suggestive that its where they're currently setting the cutoff.

    32GB is restrictive enough (to the extent of causing problems with major win10 updates) that I wish MS would raise the limit to 64GB; but I haven't seen any evidence that they have. Other than that, the numbers are IMO reasonable for the netbook class system that have always been the targets of the program.
  • dragosmp - Friday, March 10, 2017 - link

    Would you test the Asus 402 and 403 ? In a similar sort of vein, they're apparently marketed as "premium budget notebooks" and go for 250-350$. The difference is the 403 is 1080p and the 402 is 768p.
    I think this category has some potential. If I found a 4GB/1080p e403 in the UK I'd buy one now.
  • crimson117 - Friday, March 10, 2017 - link

    I'm really hoping this laptop makes a Chewbacca sound when you open the lid.
  • andychow - Friday, March 10, 2017 - link

    In the registry, change the ExcludeFromCPL value for windowslogon to get the option in the sound panel, or just replace the windows logon .wav file directly.
  • pattycake0147 - Friday, March 10, 2017 - link

    Or provide you with some chewy granola bars in the box.
  • wolfemane - Friday, March 10, 2017 - link

    Nice! Very cool to see a review of this cool little device!!! I got one of these for my wife this past Christmas. Was on a flash sale @ Newegg for $200 and she really wanted a super cheap 2 in 1 type system that supported micro sd. Before recovering it I had 0 faith in the product at that price and really thought a far more expensive known brand would be better for what she was going to use it for. Boy was I wrong. Other than our main computers it's the single most used device in the house. A bit heavy, but works far better than I would have ever expected of such a cheap device. Color accuracy of the screen is the shining aspect of this little machine. The color accuracy is so good, and the performance is good enough to do basic quick photoshop work, that my wife now uses it to give clients "sneak peaks " post photo op.
  • coder111 - Friday, March 10, 2017 - link

    How well does this run Linux?

    Is there a version with Linux preinstalled?

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