The Mate 10 Pro will be cheaper than the Galaxy S9 for a limited time in North America. Huawei intends to have smartphone options available across all price ranges from the budget $200 Honor 7X, mainstream $500 Honor View10, and flagship $700 Mate 10 Pro.
https://www.notebookcheck.net/Huawei-slashes-100-off-the-Mate-10-Pro-to-combat-the-Galaxy-S9.289962.0.html