You don't have to buy the original. It doesn't have to be original
Apple mobile phone 8p has been using a third-party compatible qi charger, which has been very stable and can achieve wireless charging.
Of course, if only Apple mobile phones want the fastest charging speed, or to get the original wireless charger, can support 15w wireless charging function.
However, if there are other brands at home that support wireless charging and want to use them together, a third party may be more suitable for some, and the cost performance is better.