"Front cam" is short for "front camera." It refers to the camera on the front side of a device, such as a smartphone or laptop, that is used to take selfies or have video calls. Full definition
The current iteration of the device features a 5 - megapixel front cam with fixed focus. (ibtimes.com)
It also offers a respectable 13 - megapixel rear camera, and a 5 - megapixel front cam. (digitaltrends.com)
Wait... so you're telling me that «screen flash» feature in front cam is available on these devices but not on S6 or other previous year flagship devices. (sammobile.com)