Microsoft Lumia 950 XL Review

By on Dec 31, 2015 in Mobile Design | 0 comments


After Windows Phone 8.1′s release in April last year, the Lumia brand went undercover, as Microsoft released very few handsets and pondered what comes next for the operating system and its smartphone business. Fast forward to September 2015, though, and the Windows universe has been shaken by yet another Big Bang, for MS released the new Windows 10 on practically everything that has a computer and display in its assembly, from fitness-tracking wristbands all the way to smartphones, tablets, and laptops.

The launch of W10 on mobile was spearheaded by two all-new handsets, the 5.2-inch Lumia 950 and the 5.7-inch Lumia 950 XL. The latter is a high-end phablet that’s, without question, the most powerful Windows smartphone ever released. But there’s an uneasy question casting its shadow over the 950 XL, despite its perceived aura of excellence emitted by a promising spec sheet, an ambitious camera setup, and the novelty of running Windows 10. Can this device gain back the mind and market share lost by the operating system during its year of restrained, sporadic activity? Find out in our review.


An uninspired look and feel that isn’t fit for a high-end smartphone in this day and age.

Let’s get this out of the way — the Lumia 950 XL has to be the single most nondescript hi-end phablet released in 2015. Representing pure function over form, the handset has a conservative plastic body that’s about as attractive as your entry-level Windows laptop nowadays. There are no decorations of any kind, which makes for a clean, but incredibly dull look. Upon a closer examination, we notice that the removable back panel won’t attach itself fully in some places, and also gives in when pressure is applied. This is a cheap build that’s out of line with what one may expect from a $600 smartphone.

Still, the phablet isn’t completely design-unconscious, for it presents a decent screen-to-body ratio and feels reasonably comfortable in the palm. But the volume and power keys (placed right) have sharp corners, feel mushy, and are just bad. Moreover, the Lumia 950 XL is rather top-heavy, but on the upside, there’s a dedicated camera shutter key, which will come in handy for avid photographers. And, just so you know, the phablet utilizes the new USB Type-C port, which solves the age-old problem of turning the connector to its right side, but means you must always keep a Type-C cable nearby, for microUSB connectors are incompatible.


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Microsoft Lumia 950 XLMicrosoft Lumia 950 XL
5.98 x 3.09 x 0.32 inches
151.9 x 78.4 x 8.1 mm
5.82 oz (165 g)

Microsoft Lumia 950 XL

Google Nexus 6PGoogle Nexus 6P
6.27 x 3.06 x 0.29 inches
159.3 x 77.8 x 7.3 mm
6.28 oz (178 g)

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Samsung Galaxy Note 5Samsung Galaxy Note 5
6.03 x 3 x 0.3 inches
153.2 x 76.1 x 7.6 mm
6.03 oz (171 g)

Samsung Galaxy Note 5

Apple iPhone 6s PlusApple iPhone 6s Plus
6.23 x 3.07 x 0.29 inches
158.2 x 77.9 x 7.3 mm
6.77 oz (192 g)

Apple iPhone 6s Plus


The 950 XL’s screen is big and nicely tuned, but disappointingly dim.

The Lumia 950 XL’s 5.7-inch AMOLED display sure sounds impressive on paper, and what do you know, it actually does deliver the goods, save for one glaring flaw — at just 297 nits of maximum brightness, this is one dim screen that will make you squint your eyes under bright light! Otherwise, things are great for the most part. The 1440 x 2560 resolution is more than adequate for this diagonal, while the color temperature and gamma calibration at play result in pleasant, natural tones. The display isn’t pin-point color accurate, but most shades and hues are quite close to their reference values. Moreover, you can choose between different color profiles, or adjust the picture completely to your liking. If there’s something about the 950 XL’s display that’s not to your liking, tinker away!

Display measurements and quality

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The CIE 1931 xy color gamut chart represents the set (area) of colors that a display can reproduce, with the sRGB colorspace (the highlighted triangle) serving as reference. The chart also provides a visual representation of a display’s color accuracy. The small squares across the boundaries of the triangle are the reference points for the various colors, while the small dots are the actual measurements. Ideally, each dot should be positioned on top of its respective square. The ‘x: CIE31′ and ‘y: CIE31′ values in the table below the chart indicate the position of each measurement on the chart. ‘Y’ shows the luminance (in nits) of each measured color, while ‘Target Y’ is the desired luminance level for that color. Finally, ‘ΔE 2000′ is the Delta E value of the measured color. Delta E values of below 2 are ideal.

This measurements are made using SpectraCal’s CalMAN calibration software.

The Color accuracy chart gives an idea of how close a display’s measured colors are to their referential values. The first line holds the measured (actual) colors, while the second line holds the reference (target) colors. The closer the actual colors are to the target ones, the better.

This measurements are made using SpectraCal’s CalMAN calibration software.

The Grayscale accuracy chart shows whether a display has a correct white balance (balance between red, green and blue) across different levels of grey (from dark to bright). The closer the Actual colors are to the Target ones, the better.

This measurements are made using SpectraCal’s CalMAN calibration software.

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