Why my camera gets hot?
It's normal to have a certain temperature rising while charging or operating the camera, you can stop charging to cool down the battery.
And please don't use it while charging, it will get a bit hot while recording in 4K.
For the Brave 8
Getting hot is normal. The heat mainly comes from the lens cover and grid. Please do not touch these two places. Also, you can use Brave 8 with a selfie stick (sold separately) to avoid touching it.