How much is Nubian mobile phone's own software?

There are many self-contained software, but there are many junk software and few second-hand software. Sometimes I want to uninstall and I don't know how to uninstall. The most rubbish software is weather software, which always restarts automatically and prompts an error. Because there is too much software, it consumes a lot of power. If it is fully charged, charge it once a day or two. However, the performance of the mobile phone is still quite good, and large-scale games can be played without delay or card, which is very smooth. Not to mention the appearance, wow!