I'm a postgraduate student, and I want to work in mobile phone hardware development or embedded development in the future. What subject or direction should I apply for?

A bachelor's degree from Xidian University is enough. Graduate study in electronics is to learn advanced theoretical algorithms, IC design, computer architecture and other technologies. If you are in other application fields, you don't need graduate study. Doing hardware has nothing to do with graduate students. It's more about experience accumulation. You don't learn as much as you did in a mobile phone company for half a year, because you can't do any hardware at school, and the cost and complexity of hardware are several times.

What you're doing now doesn't mean that you have to do that after graduate school. Many of the school's projects are military industry, but few graduates are engaged in military industry. When others recruit, it's just based on your experience. Even if you have worked in the military industry for three years at school and Samsung recruits people, you can still go. It's normal. Xidian is a dream school for many e-graduate students, so it's recommended for us to study.