Why don't you delete the unused city settings when the location setting is added to the weather forecast on oppo mobile phone?

Can be deleted. Take OPPO R9S mobile phone as an example. The deletion method is as follows:

First, click "Weather" on the desktop of OPPO R9S mobile phone.

Second, after entering, click the symbol in the red box in the upper left corner of the page to enter.

Third, after entering, find the city to delete. Take "London" as an example, hold it down and slide to the left.

4. Then find the symbol in the red box below, and click to delete the weather forecast of this city.