My project manager travels to China a lot selling test equipment to Chinese electronics makers. He has seen China's engineering up close. His observation is that China is capable of excellent engineering and production quality. They have the expertise and there are some companies striving to be the best, but the drive to at least meet a universal minimum doesn't exist there as it does in a lot of other countries, and regulation of products is very lax. There is still some honor in producing a junk product and making a lot of money with it. In the west, a company producing a product that is too shoddy would probably get sued out of business.
People can debate what the poorest quality cars sold in the US are, by some measures, it's VW, others might say Fiat products, and there are other opinions. But the worst cars sold in the US are probably far more reliable than the bottom rung of cars made in China. The best cars made in China probably are on par with what you can get in the west, but the worst are probably among the worst in the world. China has been eying the US car market, but they still haven't introduced a car in the US market yet. Most of the cars sold in China today are designs from outside the country, though most are built there. I suspect many Chinese cars introduced here would become the new Yugo.
I also noticed the OS for the Youxia is Android which is not the most secure OS in the world.