Astro 110 Plus Kids smart watch use the top tracking technology to help you locate the child's geographical location precisely. Through Geo-Fence alarm protect your kids in their activity are, once the child out of the preset area will trigger the alarm and notify you through the app. Features 1. Large Color Touch Screen 1.22 inch 2. Real-time positioning, monitoring, tracking 3. Pedometer 4. SOS Emergency Alarm 5. Remote Shutdown 6. Geo-Fence 7. Safe Zone Setting 8. Low Battery Alarm 9. Watch Take Off Alarm 10. Fast Location 11. Remote Monitoring 12. Mobile App or Computer service platform dual control 13. Android and iPhone Support 14. Leather Hand Strap Specifications • Speed Accuracy: 0.1m/sec • Screen Size: 1.22-inch color touch screen • Battery: 3.7V 400mAh lithium polymer battery • Standby Time: 3 days • Talk Time: 3 hours • Compatible Devices: Android and iOS devices • Weight: 35.1g • Maximum Altitude: 18000m • GPS Channel: 22 • GPS Sensitivity: Tracking: -165dBm, Capture: -148dBm • GPS Position Accuracy: 5-15m (2D RM) • LBS Position Accuracy: 100-1000m • Working temperature: -20~70℃ • Humidity: 5% ~ 95% RH • Dimension: 33.6mm*30.5mm*12.8mm