SOS: Smartwatch with fall detection. In an emergency, press and hold the SOS help button to automatically dial the preset SOS number and immediately notify the family, compatible with iOS and Android platforms. VOICE CALL: By locating the watch, you can set your home phone number, two-way calling, and the watch supports 4G SIM cards. Connect this product to unlock additional features. Multiple positioning systems: GPS + LBS + WIFI multiple positioning systems, locate the position quickly and accurately, you can check the specific position in real time via the APP. Electronic fence: Smartwatch for seniors with GPS tracker to keep the family safe at all times. Set a safe electronic area in the APP. When seniors and children go outside the set safe area, the family's mobile phone will remind in real time. Incoming call reminder: When there is an incoming call on the bracelet, the bracelet vibrates to remind you that there is an incoming call, even in a noisy environment you will not miss important calls. Product description This 4G smartwatch requires you to insert a SIM card to use it (this product does not include a SIM card). Health monitoring, fall reminder, smart bracelet for seniors, SOS alarm, anti-lost tracker, pedometer, geofence. The SOS button can be pressed in an emergency and automatically dials the stored emergency number. Specifications: Color: Black Material: Silicone Battery capacity: 700mAH Standby time: 5-7 days Positioning system: GPS/LBS/WIFI Network: 4G Weight: 0.45kg Functions: Fall alarm, SOS, GPS positioning, body temperature measurement, pedometer, motion tracking, alarm clock, message reminder, voice call. Black color Size: 24.1*40.5*18.8mm Package content: 1x watch Note: 1. Please allow a small error due to manual measurement. Please make sure you don't mind before bidding. 2. The color may vary depending on different monitors, please understand. Note: Hello, please pay attention to your delivery address when purchasing products. If your reception information (such as: name, street, house number, doorbell/email without name and other information is incorrect, the order will not be delivered correctly.) We strive to provide you with excellent customer service. No matter what problems you encounter, our professional team will do their best to solve them for you and ensure you have a pleasant shopping experience.