The Moyu Aosu GTS2 M 4×4 is strongly recommended by us at Cuboss and by the time of writing (2019-01-31) this is the best 4×4-cube we have for purchase. The clear competitor for this cube is the Qiyi Wuque that has been king of the 4×4 for a while. The Wuque is a great cube, but it is not available as a magnetic alternative from the creators and therefore you need to add magnets by yourself, for it to be fully comparable to the Moyu Aosu GTS2 M. Since 4×4-cubes don’t cut corners at the same level as 3×3-cubes, magnets are of even greater value when it comes to 4×4. We recommend the Aosu GTS2 M if you do not wish you magnetize a Wuque by yourself. If we compare a magnetic Wuque (M) with the Aosu GTS2 M, both are compact and stable. Wuque M is better at cutting corners, and the Aosu GTS2 M is faster. The Aosu GTS2 M is also slightly smaller at 61.3 mm.
Included with purchase are a cube-guide, a cube stack, extra magnets, Moyu trading card and a screwdriver for adjustments.