The Cubex is first officially certified product, which means it supports full 15-watt wireless charging on compatible all smartphone models. It also supports Smart Watch fast charging on Series 7, Series 8, and Ultra, a significant improvement over standard charging speeds. Combine those features with a charging surface for AirPods, and you've got all of your device charging needs covered with the highest possible specs.
At around 14.5 ounces, Anker's Cube is fairly weighty, which does hamper portability a bit if you're looking to toss it in a travel bag, but that tradeoff is necessary to provide stability in counterbalancing a phone stuck to the MagSafe charging surface.
Cubex has also included some innovations on the design front with the 3-in-1 Cube, as the whole thing collapses down to a roughly 2.5-inch cube, which is great for a smaller nightstand or desk area and for portability. This is a significant improvement over some other options like with fixed arms that make it quite bulky for shipping and everyday use, never mind trying to travel.
As I noted above, the Apple Watch charger supports fast charging, which is really a must-have for people like me who like to wear their Apple Watch as much as possible. Anker says it can charge an Apple Watch Series 7 or 8 from empty to 75% in just 45 minutes, and my experience has been in line with those numbers. In fact, my testing showed it charging my Apple Watch Ultra even slightly faster than Apple's own fast charging Apple Watch USB-C cable.