1. Location Update Schedule Modes: There are two location update modes. User can combine the two modes to better experience location services. (1).Manual positioning: Click 'Refresh' in the real-time location map interface of the APP or click 'Function' to 'Real-time position' to update the current location information, and the watch will report updated position as soon as possible. (2).Real-time Positioning: Updates location data to APP based on set interval when there is continuous movement. Note:①User can click 'Function' to 'Download Interval' to set the device download interval in minutes. The value must be an integer between 1 and 86400 ②The default interval of real-time positioning mode is 10 minutes ③ In real-time positioning, the watch will regularly update the location on the APP map page and history 2. Historical Location Reading: In the real-time location map interface of the app, click the 'History' button on the right, you can check the location history playback. 3. Geo-fence (safe)Area): This feature sets a geo-fence (security)Zone) perimeter and sends the user a push notification if the tracker has left or entered the safeZone. Click 'GeoFence' à Click the "+" icon in the upper right corner à Click and drag the map to set the center point à D Cloth to set the coordinates Range of coordinate zone à C Click '√' At the top right à Enter the name of the fence à Click confirm for save.   Noticed: (1) The app will display enter or leave geofence alarm information (Click ‘Mine’ to ‘Message’). (2) After the watch downloads the location, the APP can judge whether to enter or exit the geofence.    4. Call: (1)Telephone directory: ①Add contact: Click APP 'Function' to set sharpening book to click the '+' icon to insert the name, number (can be set to 10 digits), and finally, click 'SAVE' to save. ②Edit Contact: Click APP 'Function' to set sharpening book to drag to select the number you want to edit to save after editing ③Delete contact: Click APP 'Function' to set the sharpening book to drag the number you want to delete to click 'Delete' (the deletion information will be synchronized in watches and APP). (2)Call: ①Use the phone book to call: Click 'Contact' icon in the watch to display the contact list, slide up and down to select a contact to call. ②One SOS Button: In case of emergency, press and hold the power button to bring up a new page, click the ‘SOS’ icon. At this time, the watch will call the 3 preset emergency numbers circularly. ③Call dialing: Click the 'Phone' icon in the watch, enter the phone numbers manually, the phone number. 5. Chat Features: (1) Voicemail: ①From app send to watch: Click "Chat" in the main page of the app, voice can be sent to the watch. ②From Watch send to APP: Click the 'Chat' icon in the watch - press and hold the talk button to talk - release your finger to finish recording. (2) Video Chat: ①APP to issue video chat: Click the APP 'Function' to VideoChat. ②Watch to start video chat: Click the 'VideoCAll' in the GPSwatch icon. Select a contact, long press the name to choose video cAll or voice cAll. 6. Camera: (1) GPS watch to take photos: Click "camera" in the GPS watch to enter the camera interface, click the icon in the middle of the camera to take Pictures. Click the bottom right corner of the image icon to enter the gallery page, you can view, delete images. (2) GPS Watch to Record Videos: Click “Camera” in the GPS watch to enter the camera interface, click the Camera icon to record videos. Click the bottom right corner of the image icon to enter the gallery page, you can view, delete videos. 7. Health Pedometer Steps: Pedometer Features Set: APP Function to STeps Setting to Click '+' Icon to a Ddpedometer time period, and click save. 8. APN Settings: The default GPS watch contains most of the APN information, but if you can call and receive text messages but cannot get the GPS watch online from the beginning of the unboxing, you need to configure APN. Ask your carrier for APN information,