In tablet mode, the Mate X has an 8” screen with a resolution of 2480 x 2200 pixels. When the device is folded, the main part becomes 6.6” with a resolution of 2480 x 1148 pixels, which is the already known ratio of 19.5:9.
The other side plays the role of a secondary screen, similar to the nubia X and NEX Dual Display – there are both a display and a camera set up on the same side. Huawei said you’ll be able to take “best in class selfies,” without clarifying which class the Mate X is in. For proper photos, you need to use the primary screen that does have some bezels, but nothing extraordinary.
This device is advertised as “the world’s thinnest foldable phone” – it is 11 mm thick when the Mate X is folded. Unfolded, one side is just 5.4 mm, but some components like the camera still need room to operate properly, so you have a bump on one side of the Mate X.
Huawei Mate X will arrive in the middle of 2019 in only one color – Interstellar Blue.