Is oppoa56 the same as a57 mobile phone case?

Although these two mobile phones are different models in the same series. There are differences in performance, but the two phones are the same except performance. The appearance size is highly similar to the size of the mobile phone case. To sum up, the mobile phone cases of the two mobile phones are the same and can be used universally.

The mobile phone screen stays in a static picture for a long time (especially a few high-contrast pictures). When switching to other pictures, you can still see the residual image of the original picture, and the residual image will not disappear. This phenomenon is called "screen burning".