Samsung has lifted the lid on the Odyssey G4 series, to be available in 25-inch and 27-inch display sizes. The Odyssey G4 series offers flat-panel gaming at up to 240 Hz with HDMI 2.0 and DisplayPort 1.2 connections. Samsung promises 1 ms GtG response times and 1080p native resolutions too, among other features.
https://www.notebookcheck.net/Samsung-Odyssey-G4-25-inch-and-27-inch-gaming-monitors-unveiled-with-240-Hz-refresh-rates.621968.0.html