5. The Nyko Smart Clip
This one falls into the “weird” category, and your friends will probably make fun of you if you use it in front of them, but you have to admit that it has its uses. The Smart Clip attaches your smartphone to your Dualshock 4, allowing you to take advantage of second screen features with the PlayStation App or reference strategy guides or walkthroughs as you play through a tough level on your favorite game.