Next big trend in smartphone industry could be foldable smartphones are Samsung is looking very interested in them. The rumoured Galaxy X, which should be Samsung's first foldable smartphone lineup, has now received another certification, suggesting the announcement could be close.

After the smartphone has been spotted in Bluetooth and Wi-Fi certifications last April, Korea's National Radio Research Agency (equivalent of the US FCC) certified the SM-G888N0 model, which has been associated with Samsung's foldable smartphone, codenamed "Project Valley" or "Galaxy X". The listing unfortunately doesn't reveal anything about the phone.