With the exception of some high-end flagship laptops like the Dell XPS 15, Apple MacBook Pro, or Huawei MateBook X Pro, most laptop displays tend to top out at around 300 nits. The glossy touchscreens on convertible laptops, however, ought to be brighter since users would be more likely to use the system outdoors where there is stronger ambient lighting to overcome. Lenovo has apparently recognized this need as its high-end Yoga C940 series is advertised with an above-average backlight brightness of 500 nits.
The direct competitor to the 15.6-inch Yoga C940 convertible is the HP Spectre x360 15 and so a Spectre model is also expected to have a brighter-than-average display. Unfortunately, this not the case as every Spectre laptop we've tested thus far has a display brightness of only 300 to 350 nits. One model in particular, the atypical Spectre Folio, comes close to 400 nits. If you intend to use your 15.6-inch convertible laptop outdoors often, then the Lenovo convertible will be the objectively brighter option compared to the HP equivalent.
To HP's credit, the company offers laptops with 1000-nit display options to be over two times brighter than most other systems. The problem is that only certain flagship business laptops from HP can be configured with the super-bright display while the consumer-centric Spectre series continues to be stuck on "regular" 300-nit panels. The Spectre x360 15 OLED configuration may be brighter, but we've yet to test this particular SKU ourselves.
Lenovo Yoga C940-15IRH LG Philips LP156WFC-SPU1, IPS, 15.6", 1920x1080 | HP Spectre x360 13-ap0312ng M133NVF3, IPS, 13.3", 1920x1080 | HP Spectre x360 15-df0126ng AU Optronics AUO30EB, IPS, 15.6", 3840x2160 | HP Spectre x360 15-ch000 BOE0730, IPS, 15.6", 3840x2160 | HP Spectre x360 15-ch011nr BOE0730, IPS, 15.6", 3840x2160 | HP Spectre x360 13t-ae000 LGD0588, IPS, 13.3", 3840x2160 | HP Spectre x360 13-ae048ng Chi Mei (CMN1376), IPS, 13.3", 1920x1080 | HP Spectre Folio 13t-ak000 AU Optronics AUO572D, IPS, 13.3", 1920x1080 | |
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Display | ||||||||
Display P3 Coverage | 61.5 | 63 | 68.1 | 66.7 | 68.5 | 71.9 | 68.1 | 66.2 |
sRGB Coverage | 92.7 | 89.8 | 94.2 | 87.4 | 90.7 | 98.1 | 99.5 | 97.4 |
AdobeRGB 1998 Coverage | 63.6 | 64.1 | 68.4 | 63.8 | 66.3 | 73.1 | 70.2 | 68.1 |
Response Times | ||||||||
Response Time Grey 50% / Grey 80% * | 48.4 ? | 29.2 ? | 57 ? | 36 ? | 38 ? | 51.6 ? | 36 ? | 52 ? |
Response Time Black / White * | 36.4 ? | 20 ? | 31 ? | 23.6 ? | 27.6 ? | 32.4 ? | 27 ? | 37.2 ? |
PWM Frequency | 1000 ? | 943 ? | 943 ? | 25000 ? | ||||
Screen | ||||||||
Brightness middle | 484.8 | 272 | 330 | 349.5 | 329.3 | 329.8 | 311 | 389.8 |
Brightness | 463 | 298 | 310 | 331 | 316 | 318 | 278 | 396 |
Brightness Distribution | 82 | 84 | 87 | 90 | 84 | 74 | 82 | 88 |
Black Level * | 0.26 | 0.39 | 0.37 | 0.29 | 0.31 | 0.25 | 0.2 | 0.27 |
Contrast | 1865 | 697 | 892 | 1205 | 1062 | 1319 | 1555 | 1444 |
Colorchecker dE 2000 * | 4.5 | 4.3 | 4.03 | 4.06 | 4.78 | 2.37 | 3.98 | 2.72 |
Colorchecker dE 2000 max. * | 7.55 | 9 | 6.74 | 7.68 | 11.75 | 4.08 | 8.48 | 5.49 |
Colorchecker dE 2000 calibrated * | 1.19 | 2.4 | 1.96 | 4.22 | 3.51 | 1.25 | ||
Greyscale dE 2000 * | 5.7 | 4.4 | 4.49 | 4.4 | 7.9 | 2.8 | 5.57 | 4.2 |
Gamma | 2.45 90% | 1.97 112% | 2.57 86% | 2.11 104% | 2.24 98% | 2.145 103% | 2.51 88% | 2.1 105% |
CCT | 6101 107% | 5825 112% | 6744 96% | 7422 88% | 8323 78% | 6441 101% | 7810 83% | 7470 87% |
Color Space (Percent of AdobeRGB 1998) | 58.7 | 58.9 | 61 | 56.5 | 58.8 | 67 | 64 | 62.2 |
Color Space (Percent of sRGB) | 92.8 | 89.8 | 94 | 86.9 | 90.4 | 98 | 99 | 98.2 |
Total Average (Program / Settings) |
* ... smaller is better