How to tell the difference between V1 and V2 Dualshock without opening the box? : r/PS4
Peer into the soulful glow of the new Dualshock 4's extra lightbar - Polygon
Boxes and weight comparison v1 & v2 Playstation 4 Controllers (see description) - YouTube
How to identify fake DualShock 4 controller - iFixit Repair Guide
Amazon.com: Sony DualShock 4 Wireless Controller - Wave Blue [Discontinued] - PlayStation 4 : Video Games
Amazon.com: HUAYUWA Plastic Game Controller Housing Case with Buttons Replacement Set Fits for Playstation 4 Slim 4.0 JDM-040 (V1 Version), Sunset Orange : Video Games