Its limited brightness may hinder its viewing angles, as I was unable to see whole characters in the Rogue One trailer at 45 degrees to the left and right.
We'd never call that a high mark, though it's just below the category average (249 nits), a hair above the ThinkPad T460 (239 nits (touch), 242 nits (non-touch)), and better than the Latit(226 nits) and the Tecra Z40-C (208 nits).
The ProBook 400 isn't exactly luminous, as it emits up to 243 nits (a measure of brightness). That's worse than the average for thin-and-light laptops (2.12) and the ThinkPad T460 (0.5 (touch) / 0.24 (non-touch)), similar to the Latit(3.8) and better than the Toshiba Tecra Z40-C (6). The colors produced by the ProBook 440 G3's panel aren't accurate, either: It scored a 3.6 on the Delta-E test (where lower is better). According to our colorimeter, the ProBook 440 G3's panel can produce a paltry 55 percent of the sRGB spectrum, which is less than the Tecra Z40-C (72 percent), the ThinkPad T460 (67 percent), the Latit(62 percent) and the average for thin-and-light notebooks (79 percent).
