Samsung SM-W350F seems to be a new Windows Phone 8.1 handset with WVGA display
So, Lumia 630 and Lumia 635.
Unfortunately, at the moment there are no photos to show the Samsung SM-W350F (what you're seeing above is a generic Windows Phone 8.1 image). Moreover, there is no word on when Samsung may want to announce the handset, and neither on where it’s going to launch it. Anyway, since Nokia’s Lumia 630 and 635 will both be sold for under $200, we’re thinking that the Samsung SM-W350F should also be pretty cheap. We’ll bring more on this as soon as new details arrive.
sources: Samsung (.xml file) via Sammy Today