https://www.theverge.com/2018/10/16/17983328/huawei-mate-20-x-release-date-news-features

At the end of an event where two devices were already announced — the Huawei Mate 20 and Mate 20 Pro — Huawei had another surprise up its sleeve. The Huawei Mate 20 X is the largest in the lineup with its 7.2-inch OLED display, which already consists of three phablet devices. The device is equipped with a massive 5,000mAh battery, and it’s compatible with styluses.

Huawei emphasized the device’s gaming performance and its vapor chamber cooling design that, combined with “graphene film cooling technology,” the company claims will keep its Kirin 980 SoC cool even under heavy loads. Other specs include 6GB of RAM and 128GB of onboard storage, and a dual speaker configuration.