funny thing is all of the newer clones are more and more closer to the real ones
i have 1 ds4 clone that i bought because im a bit curious about how it feels and suprisingly almost similar with less sensitivity on the trigger but the analog are similar
my clone doesnt have a different screws length, use the same battery type like on the 2nd picture (but the pcb are different) and doesnt have the turquoise light when try to pairing but they have a different blink the real ones doesnt blink but its like breathing but really fast meanwhile the fake ones are blinking
so if someone read this be aware.. go to a store that you trust or with a honest employee/owner. the easiest methout to identify fakes are from the "sony" stickers on the back. if its blurry or looks a bit sketchy then its probably a fake