Michael Simon, staff writer for PC World, previews Mobile World Congress kicking off this weekend in Spain. Samsung, LG, Sony, and others are all expected to unveil new phones.

Simon says Samsung is finally expected to show off its new flagship Galaxy S9 phone for the first time, featuring a Snapdragon 845 chip and its own take on Apple's Animojis. Samsung will have its own event separate from MWC to unveil the phone.

Other major tech manufacturers are looking to get in on the action. Simon explains LG is expected to update its phone, the V30S, while Sony is rumored to be revealing a new, curved phone.