Oneplus only give nice device but in case of its apps, it does not stand in and around of Samsung device application. like it does not give many apps as its official app like music. And also the apps that it gave like gallery doesn’t have the feature of the slideshow. because oneplus does not do any work for improving or upgrading its official application like Samsung, besides that it puts its all focus on making its devices flagship to get more revenue from the market. Also, the notification light is not bright.
And, its file manager is worst app in oneplus because when you copy an item to another location you don’t have or get the option to create a new folder, till the paste command or option is shown on the top of the file manager.
And not that when you want to rename a file, music, video or any other type of document in the file manager, you get a single line space to do that work and rest of the file name was covered. so you get very little space to rename a long name file or document.
Also, put your attention on this, that when you upgrade your ROM or updater your device to official ROM or new update new ANDROID version like from Marshmello to Oreo. You may counter some errors or problems with your device. Like in my device after 2 months of purchase, the notification light does not work fine with mostly all the apps, rather than messaging apps. gaming DND was not able to block notification from all apps.
And sometimes when you move or copy an item, it hangs on 100%. Also, all the apps stop unexpectedly in both the case as they are open or not open.
So think once again before purchasing it.