Android → iPhone
Fix a Problem
How do iPhone Wi-Fi hotspot settings affect heat and battery?
Running a personal hotspot uses the phone's cellular radio and can increase battery drain and heat, especially with weak coverage or multiple connected devices.
What to do
- Keep the device ventilated and use a stable power source if needed.
- Turn off Personal Hotspot when finished.
- Reduce connected devices and test in a stronger-signal location.
Limits and compatibility notes
Check this before relying on the answer
Heat levels vary by device, ambient temperature, radio signal, and workload. Stop using the phone if it displays a temperature warning.
Further help
These official help pages are starting points, not confirmation for every phone or claim above. Check the guidance for your exact device and software version.