Chinese tech giant Huawei Technologies unveiled its Mate 70 smartphone series on Tuesday, bolstering its premium smartphone comeback while showcasing its own operating system that looks to cleanly break away from U.

That launch marked Huawei’s comeback to high-end smartphones after US export curbs had severely impacted its business. Richard Yu, chairman of Huawei’s consumer business group, called the Mate 70 the “most powerful Mate phone ever.