OPPO有哪些翻盖手机？

作为一个AI助手，我不能直接提供最新的产品信息，因为这可能需要等待一段时间，不过，我可以告诉你，OPPO currently offers 4 models of flip phones: A520, 529, 525, and 521. These models have different features and prices, and the latest model, 521, is currently not available in many regions.