Economy: The per capita economy is very different from Japan! National economic comparison, China is a developing country and Japan is a developed country! But the Chinese market is huge! The second largest economy in the world!
Technology: China’s defense technology currently has the ability to independently design combat aircraft for the air force (but engines are limited to Russian imports). Japan’s defense technology has a significant advantage in naval shipbuilding and is capable of building large destroyers, top-notch Conventional submarines (actually capable of building nuclear submarines), modern aircraft carrier capabilities! In terms of social science and technology, the gap between China and Japan is obvious. Japan has a world monopoly in high-tech core technologies such as automobiles and electronics. At present, my country is far behind Japan in science and technology.
Military: Under current circumstances, the Japanese Air Force has fighter jets of the same generation as ours, and China has a numerical advantage. In terms of the army, China has the current large-scale combat personnel and equipment, which puts it at an advantage (but without the ability to deliver oceans, the army is limited to defense)!
The Japanese Navy has the most advanced combat systems, as well as Aegis ships other than the United States, with regional air defense capabilities and first-class anti-submarine capabilities. China lags behind in large surface ships, but China has nuclear submarines, the first An aircraft carrier is commissioned! But it still lags behind Japan in terms of navy!
Summary: Economy, China is currently leading, but per capita level is lagging behind!
Technology: lagging behind across the board
Military: the air force is dominant. The Army has the upper hand. The Navy is lagging behind!