https://www.cnet.com/news/what-galaxy-s10-really-needs-to-stay-ahead-of-top-rival-huawei/

The Galaxy S10 matters tremendously for Samsung's fortunes in 2019. The specs that go into the rumored phone will shape Samsung's response to intensifying pressures from other phone companies. Weak Galaxy S10 sales could crack open the door for Huawei, a Chinese challenger that replaced Apple as the second-largest brand, selling 200 million phones in 2018. 

But Huawei's friction with global governments and carriers only escalated when its CFO was arrested in Canada on Washington's accusation that Huawei violated US sanctions against Iran. As imperiled as Huawei is, its phone sales are on the rise while Samsung's are starting to slow.