Is it better to enter vivo factory or oppo factory?

These two big factories are both quite good.

Requirements of vivo factory and oppo factory for general workers: Education requires junior high school education or above, and the comprehensive salary is 4,500 to 6,500 yuan per month. Mainly standing to work, two shifts. OPPO and vivo have quite a few shareholders with the same interests, so they can be regarded as half interests, and some of them will be used in channels. But they don't belong to the same company, and they are all in the highly competitive mobile phone market.