Got for my teenage daughter but she never wore it - $200 new. Excellent Hume health tracker in black. This device has a fabric wristband and includes a charging cable. It comes with its original box and packaging. From website - longevity tracker that goes beyond basic fitness devices by monitoring key biological signals and offering meaningful health insights to help users improve recovery, resilience, and overall wellbeing. It continuously tracks metrics like heart rate variability (HRV), heart rate, blood oxygen levels (SpO₂), skin temperature, sleep stages, activity, strain, and recovery status with clinical‑grade precision. The data syncs with the Hume Health app, where it provides personalized insights into how daily habits affect long‑term health, metabolic capacity, and aging trends. Designed for daily wear with a comfortable wristband and solid battery life, the Hume Band aims to help users understand what their bodies are doing internally so they can make smarter lifestyle decisions for improved performance and longevity. Key Features Continuous heart rate and HRV monitoring Advanced sleep tracking and recovery analysis Daily activity and calorie tracking Real-time health insights via Hume Health app Lightweight and comfortable wearable design Bluetooth connectivity with smartphone sync Long-lasting rechargeable battery Seamless integration with Apple Health and Google Health Connect