24/7 Activity Tracking: Fitness tracking ring has 26 sports modes and can automatically track and record running and walking (activity duration exceeding ten minutes). Fitness rings for women tracks and records your daily activities in terms of distance, calories burned, activity duration, and steps. You can also set your daily goals and customize your daily tags to comprehensively record your mood and activity intensity each day Improved Connection Stability: Easily connect the smart rings for men to the no subscription app via Bluetooth. Compatible with Android 5.1 above, and iOS 8.0 above, the app provides a comprehensive dashboard to monitor your health and fitness data. Health tracking ring also features smart photo capture function for a more interactive experience Multidimensional Sleep Tracking: Sleep tracking ring can track your sleep from multiple dimensions: average sleep heart rate, average heart rate variability, sleep temperature difference, blood oxygen saturation, sleep activity status, and more. It generates personalized sleep adjustment suggestions based on recent sleep data to help you develop better sleep habits, ensuring you wake up refreshed and energized All-Day Sleep and Nap Tracking: Smart rings can track your sleep around the clock, whether it's a daytime nap or nighttime sleep. Nighttime sleep tracking primarily monitors sleep duration, deep sleep, light sleep, REM sleep, and sleep efficiency, while nap tracking only monitors duration Durable & Convenient Design: Made from high-quality epoxy resin and stainless steel, heart rate monitor ring is designed for durability and comfort. With an IP68 waterproof rating, heart monitor ring can withstand daily activities, including swimming. The magnetic charging ensures easy and efficient recharging, offering 3-5 days of use and 7-10 days of standby time 24/7 Health Monitor Fitness Tracker: The smart ring offers real-time heart rate and blood oxygen measurements. Stay informed about your health status throughout the day, ensuring you can make data-driven decisions to improve your overall well-being