Safe mode in Android is a diagnostic mode that disables all third-party apps and extensions, leaving only the pre-installed system apps active. This mode is primarily used to troubleshoot software issues, detect conflicting apps, and resolve performance problems.
When an Android device enters safe mode, its performance often improves, and battery life may extend due to the limited number of active apps. Safe mode is also useful for removing persistent malware or bloatware that cannot be uninstalled in regular mode.