Hey there EDVINOZA,
You might notice that your device feels warmer when you:
Set up your device the first time
Restore from a backup
Wirelessly charge your device
Use graphics-intensive or processor-intensive apps, games, or features, including augmented-reality apps
Stream high-quality video
These conditions are normal, and your device will return to a regular temperature when the process is complete or when you finish your activity. If your device doesn't display a temperature warning, you can keep using your device.
Make sure to also follow the guidance under "If your device gets too warm" in the resource below to further help with this issue:
If your iPhone, iPad, or iPod touch gets too hot or too cold
If your iPhone continues to feel warm to the touch, Contact Apple Support for additional support options.
Take care!