mobile

hey guys, i bought a galaxy S6 on thursday, and so far the phone is a beast...no lag...no overheating....no problem with the battery....i mean this is the closest to perfect....but...today i had one issue...when i was scrolling through facebook the phone froze...disconnected from the WIFI by its self...for 3-4 seconds and then it worked again like nothing happend...i am not saying that the phone is starting to develop troubles...because after that it worked as it should...did someone encounter this??