http://www.techradar.com/news/what-the-samsung-galaxy-s9-release-date-tells-us-about-the-phone >We'll know the official Samsung Galaxy S9 release date this time next month, as it, and the bigger Galaxy S9 Plus, will be announced at MWC 2018. >February 25 is the specific date for Samsung's Unpacked 2018 launch event in Barcelona and we'll be there in person, among the first with the breaking news.