1. Smart ring with blood pressure, sleep tracker, heart rate monitor, SpO2: The ring measures heart rate, blood pressure, and oxygen levels. You can easily activate the mode for continuous 24hour heart rate monitoring. At night, the intelligent sleep function accurately records your sleep cycles and quality, including the distribution of light and deep sleep, helping you develop better sleep habits. 2. Only 3.8 g, stylish smart ring for women: This trendy, refined, and elegant ring is designed for fitness enthusiasts, weighing an incredibly light 3.8 grams. Whether you're typing at the office, sweating at the gym, or exploring the outdoors, the ring remains unnoticeable on your finger. Its ultralightweight design enhances comfort and lets you perform at your during any activity without distraction. 3. IP68 waterproof: Suitable for handwashing, showering, splashes, and rain. Not recommended for hot baths, diving, or underwater work. Avoid extreme hot or cold temperatures. This multifunctional fitness ring acts as a fullfeatured pedometer, accurately tracking daily activity data like steps, distance, and calories burned. It also supports various sports modes, including walking, running, and cycling. 4. Measure your size before : Before buying our smart ring, ensure you measure your finger precisely. We recommend taking measurements in the afternoon or early evening when fingers naturally expand slightly for a more accurate fit. Once sized, you can confidently select the fitnesstracking smart ring for yourself.