Samsung Galaxy Note9 - Turn Emergency Mode On / Off
Emergency mode conserves your device's remaining power when you are in an emergency situation.
A notice of your approximate location is sent to the mobile phone of a chosen contact(s) you can set in advance.
To set an emergency contact, swipe up or down from a Home screen then navigate: Settings > Advanced features > Send SOS messages.
Battery power is saved by:
Turning off Mobile data when the screen is off.
Turning off connectivity features such as Wi-Fi and Bluetooth®.
Restricting usage to essential apps and those you select.
Limited functionality includes: