What’s the reason why SLR cameras don’t take pictures as well as mobile phones?

I still partly agree with you. No matter how advanced the camera is, people should feel the beauty from the work. For watches, it should be very clear, showing all the details, so that people can feel the beauty of technology from the photos. If you put too much emphasis on shallow depth of field, people will lose their desire to buy. Any photography of watches and clocks should be very clear and clean.

Of course, it is a bit unobjective for you to say that the details and color reproduction of DSLRs are not as good as those of mobile phones. You can see the obvious difference by comparing the clearly focused parts, especially when the publicity requires a lot of magnification. time the difference is more obvious.