The universal wheelchair has good durability and quality. Because its design and manufacture need to consider the flexible rotation of wheels, universal wheelchair will adopt high-quality materials and structures to ensure its durability and be able to withstand various pressures that may be encountered in daily use. In contrast, gravity wheelchair may be slightly inferior to universal wheelchair in sports. Gravity wheelchair needs to rely on the user's body to exert a certain degree of push, pull or tilt to achieve movement, and its operation is relatively less intuitive and simple than universal wheel.