• (1.5 Hours Charging, Long Lasting for a Week) Can be used up to 1 week on a single charge, eliminating the hassle of frequent charging. The charging speed is excellent, and it only takes 1.5 hours to fully charge, allowing you to use it for a long period of time. There is no need to worry about charging even on the go or on a busy day, so you can charge it quickly in the morning, and avoid the hassle of frequently carrying the charger while traveling • (24 Hours/7 Days Sleep Management) Automatically records 4 levels of deep sleep, shallow sleep, REM sleep, and awakening (can detect lunchtime sleep for more than 30 minutes). Visualize your sleep quality and rhythm for an objective understanding of your daily status, and monitor your blood oxygen levels, heart rate and stress levels in real time. The vibration alarm will let you sleep naturally, so you don't have to worry about the surrounding environment when you wake up in the morning, and the data will be automatically synchronized with the app to support analysis. It is an ideal device for improving sleep quality and adjusting your life rhythm • (100+ Exercise Modes x GPS Linked x IP68 Waterproof) Compatible with over 100 different exercise modes, so you can accurately measure distance, calories burned, heart rate, pace, and more. It is equipped with IP68 waterproof performance, so you can use it for daily washing and going out in the rain, as well as when swimming in the pool or doing other activities. In addition, you can use your smartphone's GPS function to check your position in real time • 140+ Dial x AI Dial x Constant Display: The L1 has more than 140 types of wallpapers (watch face) that can be selected to match a variety of styles such as business, casual, and design. It also supports constant display functions, so you can switch between 4 different display formats that include time priority, simplicity of information, design, and power saving. In addition, with the AI voice generator function, you can create a custom dial by simply telling "Little Cat Drink Water Design 410 x 502 Watch Face" to create a custom face or upload your own photo to make your own original wallpaper, creating a completely personalized watch design • Sensory Games & Chat GPT: Comes with a free GPT language function, so you can easily use the language tools for everyday conversations and information searching. It also supports a free sensory game, so you can exercise through games such as "FitDance," "Racing," and "Boxing" even in rainy days or when outings are inconvenient. Wear your smart watch to play games at home and automatically record the calories burned during exercise, providing both entertainment and health management