The 6.3-inch device, with the same edge-to-edge, 18.5:9 aspect ratio AMOLED display as in the Galaxy S8 lineup, will be unveiled in the second half of September.
U.S.-trained urban warfare units are leading the fight in the maze of narrow alleyways of the Old City, the last district in the hands of the Sunni Islamist insurgents.
It was not immediately clear who was behind the plot to attack the mosque, but the Islamic State group had in the past carried out attacks in the kingdom.