Can I apply for multiple patents for the same product at the same time?

Of course, different patents can protect different aspects or aspects.

The simplest thing is that if it is a large-scale product, all its components can be patented.

But the bottom line is: there cannot be duplicate authorization, that is, you cannot apply for two identical patents. Even if it is technically possible to apply for both a utility model and an invention on the same day, during the actual review of the invention, you will be issued a duplicate authorization and you will give up the utility model patent.