Huawei is among the first smartphone makers to promote the tri-camera trend in 2018 with a three-model P20 lineup of smartphones. The leaked sketches from Weibo also revealed 18:9 bezel-less displays and different alignments for the 40 MP camera setup on the advanced models.
https://www.notebookcheck.net/Huawei-P20-sketches-get-leaked-tri-camera-setup-on-the-back.275804.0.html