http://www.bloomberg.com/news/2014-10-09/sony-plans-to-start-china-console-packaging-by-december.html
XB1 has a 5 million unit cap in China, but I'm not seeing any lifetime cap being mentioned for the PS4.
Sony’s venture for China intends to package 200,000 consoles annually, according to a filing on the website of the China (Shanghai) Pilot Free Trade Zone. Masaki Tsukakoshi, a Tokyo-based spokeswoman for Sony Computer Entertainment Inc., confirmed the document’s authenticity and said actual production amounts may differ.
XB1 has a 5 million unit cap in China, but I'm not seeing any lifetime cap being mentioned for the PS4.