xiaobi Smart Ring with Call/Clock/Events Alerts, No APP Subscription, Body Temp/Heart Rate/Women’s Health Tracker, 5ATM Waterproof Fitness Ring for Android & iOS

【Find Your Perfect Fit】The Xiaobi Sizing Kit helps you find the most accurate and comfortable ring size before purchasing. By identifying the perfect fit in advance, it reduces the hassle of returns and exchanges, ensuring a smooth and confident buying experience.
【Smart Notifications On Your Finger】Stay effortlessly connected with the Xiaobi smart rings, designed to bring smart notifications to your fingertips — literally. With subtle vibration alerts for calls, alarm clock and schedule reminder, you’ll never miss a message, even during workouts, meetings, or moments when checking your phone isn’t ideal.
【Track Sleep & Body Recovery】The sleep tracking ring continuously monitors key health indicators such as heart rate, blood oxygen (SpO₂), heart rate variability (HRV), and body temperature while you sleep. Using advanced sensors and intelligent algorithms, it analyzes your overnight data and generates a personalized wellness summary each morning. This insight helps you better understand your sleep quality, nighttime recovery, and overall readiness for the day — all from a lightweight, comfortable health ring you can wear 24/7.