Best IP67 water resistance detachable security kids watch tracker GPS with voice monitoring for fitness tracking Y48. IP67 Waterproof Design: Durable PC+ABS material with IP67 waterproof rating for reliable outdoor use. Multi-Positioning GPS: GPS+LBS+WiFi positioning with accuracy less than 5M for precise real-time tracking. Health Monitoring: Tracks heart rate, blood pressure, and blood oxygen levels for comprehensive health insights. Two-Way Communication: Supports 2-way voice and video calls, SOS emergency button, and voice remote monitoring. Long Battery Life: 730mAh rechargeable polymer battery provides 2-3 days of working time. Free Lifetime Platform: Beesure GPS app and AWS Cloud server platform are free of charge for lifetime use. Safety Features: Includes Geo-fence, Class mode, remote shutdown, and SMS alerts for child safety.