Using your KIDOCALL 4G Smart Phone Watch is a breeze. First, insert a Nano SIM card into the watch to activate it. You can then make voice and video calls just like on a regular phone. To use the GPS tracking, turn on the location feature in the settings. If your child is in an emergency, they can press the SOS button to send a distress signal. When taking pictures, simply tap the camera icon on the 2.5D full - view screen. The album is accessible through the main menu. For the geo - fence area alert, set the boundaries in the app on your paired device. The call firewall can be configured to block specific numbers. The pedometer starts counting steps automatically when you start moving. You can set alarms and use the stopwatch through the dedicated icons. Remember to switch to school mode during class hours to avoid distractions. When it comes to maintenance, since it's IP67 waterproof, you can wipe it clean with a soft, damp cloth. But don't submerge it for a long time. Keep the battery charged regularly to ensure it functions well. And if you have any issues, refer to the user manual or contact our customer support.