You can have products that look the same (same manufacturing process for the most parts) but that have missing components or similar, as a way to reduce the price.

I read some time ago about how a lot of the products imported from aliexpress-like sources tend to not follow EU safety norms, which is probably less likely through amazon if the seller is located in Europe, even if the product looks the same as another on aliexpress.

For non-electronic stuff it’s probably different, but with electronics no one is going to notice a missing component.