The QiYi Warrior S 3x3 is the new and improved version of the QiYi Warrior 3x3. The two major upgrades of this cube are they are stable and do not pop out. Also, the foot of the centerpiece is quite different. It has a more comfortable grip giving you a smooth feel and turns out to great performance. The colors of this cube are more harmonious and more accurate to observe as compared to the other cube. It feels solid yet smooth right out of the box. Great as an inexpensive first speedcube for beginners! The four main advantage of QiYi Warrior S are: 1. Against Scratches. 2. Against Light-reflecting. 3. Against Fingerprint.