Our smart ring is crafted from durable stainless steel, yet-remains as light as a feather for a comfortable wear-it-and-forget-it experience. The fitness tracker ring ensures both sturdiness and accuracy of the sensor, making it ideal for all-day wear without any discomfort. Stay connected in your preferred language with our fitness tracker's app that supports a wide range of languages including Danish, Ukrainian, Russian, Croatian, Hungarian, Hindi, and many more. Whether you're tracking your health data or setting exercise goals, the multi-language support ensures seamless interaction. The smart ring offers advanced monitoring capabilities for blood pressure, blood oxygen saturation, sleep patterns, heart rate, step count, and various exercise modes. With this comprehensive health tracking system at your fingertips, you can monitor and improve your overall well-being effortlessly. Designed to keep up with your active lifestyle, the smart ring features a waterproof certification. This means you can wear it worry-free while swimming, washing hands, or even when caught in the rain. The fully sealed design ensures durability and reliability in various conditions. The heart rate tracker is equipped with a magnetic charging system and a 17mAh polymer lithium battery, which provides long-lasting battery life and allows for real-time battery level checks through the app. Item Name: Smart Ring Material: Stainless Steel Compatible System: for Android5.1 or Above, for iOS8.0 or Above Flash Memory: Ram 208kb Rom 512kb Battery Capacity: 17mAh Waterproof Level: 5ATM Charging Time: 1 Hour Working Time: 5-7 Days Standby: 15 Days Features: Lightweight, Smart, Easy to Use Size Details: No.8: 1.81cm/0.71" (Approx.) No.9: 1.89cm/0.74" (Approx.) No.10: 1.98cm/0.78" (Approx.) No.11: 2.06cm/0.81" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Smart Ring