Why is my phone overheating? Top causes and fixes in 2026

Your phone has a safe operating range, typically between 0°C and 35°C (32°F to 95°F). When your cell phone feels hot to the touch, especially when idle, that’s a warning sign. You are right to ask, “Why is my phone overheating?” 

This excessive heat can permanently degrade your battery life and force your phone’s processor to slow down. Worse, it is a primary red flag for malicious apps. Spyware or cryptojackers can hijack your phone’s resources to run intense background processes. 

This guide