Advanced GPS Route Tracking – Record and review your workout paths directly through the Dafit app with GPS motion trajectory. Whether running, hiking, or cycling, you can accurately track your outdoor routes and performance.3ATM Waterproof Protection – Built with a durable zinc alloy frame and silicone strap, this smartwatch withstands daily splashes, rain, and even swimming sessions, giving you reliable performance in active lifestyles.AI Dial & GPT Features – Personalize your watch face with innovative AI dial design and enjoy GPT-powered assistance for quick answers and smart interactions, making your smartwatch both stylish and intelligent.Flashlight Function for Daily Use – Equipped with a convenient built-in flashlight, the KC91 provides practical lighting for night walks, outdoor adventures, or emergency use, adding more safety and functionality to your wrist.Comprehensive Health & Fitness Tracking – Supports heart rate, blood pressure, SpO₂, and sleep monitoring, plus 107 sport modes including running, yoga, cycling, and more. Smart notifications, Bluetooth calls, and app synchronization keep you connected while improving your health and productivity.