Samsung is introducing the Galaxy Note9 on August 9, which two weeks earlier than its predecessor. According to industry insiders from Taiwan, the reason is the Korean company is experiencing low sales of the Galaxy S9 and the Galaxy S9+ and wants to keep the momentum in user engagement before it is too late. Samsung usually launches its flagships up to two weeks after the announcement, so an early August introduction means late August market arrival. This move should counter the poor performance of the Galaxy S9 series which according to some reports from China reached lowest levels...
Source: https://www.gsmarena.com/samsung_launch_galaxy_note9_early_august_dpoor_galaxy_s9_sales-news-32413.php