Not only this, but the tests also showed that HTC's handset, despite its lower 385 nits brightness, compared to Sony's 400-440 nits, depending on the screen area measured, has a higher contrast rating of 1153:1, against the Z's 570:1, which makes black appear grayish. The higher contrast and better reflective coating also make the HTC Butterfly more visible in direct sunlight than the Xperia Z.