It's reportedly capable of 800 - nit brightness while consuming less battery power than traditional IPS LCD panels. (androidauthority.com)
The rumors were true, it rocks a better 1920 × 1200 pixels full HD Super IPS + screen with 600 nits brightness with Gorilla Glass 2. (intomobile.com)
HUAWEI MediaPad X1 features content adaptive brightness control (CABC) technology together with a 515 nits brightness level to allow amazing visual clarity under direct sunlight, and also includes intelligent grip suppression so you can hold and scroll simultaneously. (consumer.huawei.com)