The company sent out invitations for a February 21 press event Sunday night featuring an image of a black cube cracked open ever so slightly, and the word Galaxy in the lower right hand corner.
Samsung is currently the top smartphone maker in the world, according to the latest estimates from IDC. The Galaxy S series is its flagship brand.
More than 22% of the world's smartphones shipped in 2015 were Samsung devices, followed by Apple (AAPL, Tech30) at 16%, and Chinese gadget maker Huawei at 7%.
But Samsung's lead has been shrinking.
In its latest earnings report, the company said that it will face continuing challenges in its mobile business due to weak global demand for smartphones. Read more on money.cnn.