This question is quite controversial and there is no standard answer.
First of all, if you value 985, then choose University of Electronic Science and Technology of China. This is not controversial. The University of Electronic Science and Technology of China in Chengdu is 985, while Xi'an University of Electronic Science and Technology is 211. If you think 985 is not important, you can ignore it. If you think 985 is important, there is a gap between the two.
Xijun Electronics has been famous for a long time. It was changed to Xi'an University of Electronic Science and Technology and is still strong. For example, electronic science and technology still dominates China. Unexpectedly, bad luck happened. During the 985 selection, Shaanxi had already selected three institutions. In order to balance the regional demand for higher education, Chengdu Institute of Telecommunications Engineering became the lucky winner of 985. Since then, it has been actively expanding, purchasing advanced instruments, introducing talents, and building buildings. In terms of reputation and admission scores, the two universities have surpassed each other, but in core subjects, the two universities still have their own strengths and it is difficult to distinguish between them.
Chengdu Electric has more majors and is larger in scale, so it was ranked 985 during the evaluation. Other majors are comparable. Chengdu's admission score is much higher. By comparison, Chengdu's student quality is higher.
Xidian University was originally a military school, cultivating top talents for the military and national defense science and technology. At that time, one of the five departments was communications major, which mainly focused on the design, research and development of military radio stations, military wired telephone sets, local area computers, line networks and supporting machines. The second and fourth series are the design, research and development of radar host systems and supporting equipment. Three series computers and automatic control systems are planned to be researched and developed. The fifth series is the electronic information major and the design, research and development of information equipment and the processing of electronic information. Chengdian is mainly engaged in the research and development of electronic equipment, materials, components and production equipment. At the end of the last century and the beginning of this century, Xidian graduates were in great demand, and many units were looking for people at the school. At that time, students from Xidian were everywhere in Shenzhen, Guangzhou, and Shanghai. Most of the people working at Huawei, ZTE, and CITIC are students from Xidian University.
Looking at my professional interests, it seems that they are all electronic and telecommunications technology colleges, and each has its own expertise in subdivisions. Choose a direction that suits you. There are many places to choose from, both places have a lot of delicious food, it all depends on your taste.
Although Xi'an University of Electronic Science and Technology is a local name, its predecessor was called Xijun Dian, and it is very powerful. Focus on military and civilian applications. More for military use. Chengdu University of Technology used to be called Chengdu Institute of Telecommunications Engineering and is now called University of Electronic Science and Technology of China. 985, which strives for balance, focuses on civilian use. The focus is different.
For electronics majors, both are really good choices. As long as you work hard enough, you will be proud of either school. I hope you will be proud of the school you choose in the future.