The appearance, functions, and performance of the custom stylus may differ from that of the original stylus. Specific differences need to be compared according to specific models. In general, the original stylus is more in line with the design and technical requirements of the device, and the compatibility and performance may be better. The custom stylus may be innovative in terms of appearance, function, etc., but compatibility and performance may be affected. It is recommended to select the right stylus according to personal requirements and usage scenarios.