SOS: Smartwatch with fall detection. In an emergency, press and hold the SOS help button to automatically call the preset SOS number and notify the family immediately, compatible with iOS and Android platforms. VOICE CALLS: By locating the watch, you can set your home number, two-way calls, and the watch supports 4G SIM cards. Connect this product to unlock additional features. Multiple positioning: GPS + LBS + WIFI multiple positioning, 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 range on the APP. When seniors and children go outside the set safe range, 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 (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 calls 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: 0.45 kg Functions: Fall alarm, SOS, GPS positioning, body temperature measurement, pedometer, motion tracking, alarm clock, message reminder, voice calls. Black color Size: 24.1*40.5*18.8mm Package content: 1x watch Note: 1. Please allow a small margin of error due to manual measurement. 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 (e.g.: 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.