Oppo is a well known brand and I have been using oppo a37 f since much time and all that I have experienced is a very good experience using this phonw, not only it has a perfect camera for selfies and photos but also has good space to keep your files. The main problem that other people face for the mobile phones of a different brand is that it hangs a lot that creates a problem for using it and here in this case there is no such problem, it generallly never hangs and the battery backup is also good. Also it has many addition built in features that makes the phone good