The YJ Pocket Cube 4x4 is a 56mm magnetic 4x4 that packs solid performance into a surprisingly compact size—about the same as a standard 3x3. Despite its smaller form, this cube turns smoothly, features factory-installed magnets for added control, and offers a satisfying, stable feel. While it’s not a flagship model, it’s an excellent budget-friendly choice for casual solving, one-handed practice, or just keeping in your bag for solving on the go.