Be careful watch youi wish for...
A lot of these low-end Chinese phones use the firmware update .apk to remotely install adware apps, remote code exucution using LUA scripts and can grant any permission to any app through reflection and run with system permissions.
https://www.bleepingcomputer.com/news/security/chinese-backdoor-still-active-on-many-android-devices/
(I suggest you purchase a used Pixel device or an iPhone SE and avoid any third-party apps if you're trying to save money without compromising security/privacy)
Biting the hand that feeds IT
