Why does the phone get hot when using the navigation function?

Solution:

 In-vehicle navigation is a relatively complex environment. Navigation needs to be continuously highlighted and accompanied by high-volume voice prompts. Considering that the car environment is relatively closed, mobile phones fixed in the car are more likely to receive sunlight radiation and cause heat accumulation. At the same time, in the case of fast movement, the instability of mobile network and GPS signal will increase power consumption and temperature rise to a certain extent. If you use it with a charger (wired or wireless) connected while navigating in the car, it will also add heat to a certain extent.