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**Size Consideration Before Purchase** This smart ring has a wider and thicker ergonomic design optimized for sensor performance. For optimal comfort, we advise using the sizing kit prior to ordering. If you are between sizes, we strongly recommend selecting the larger one. **Titanium Construction** Made from robust titanium alloy, the ring weighs around 3 grams. Because of its integrated smart sensor design, it may initially feel different from a standard ring. Most users adjust within a few days of wearing it for daily activities and sleep tracking. **No Subscription Required** The smart ring offers access to sleep, heart rate, activity, SpO, and stress trend data without any app subscription fees. It is intended to support daily wellness awareness and is not a substitute for medical or professional devices. Your health data stays accessible without ongoing payments. **Battery & App Connectivity** Battery duration lasts up to 7 days depending on usage and settings. The ring syncs data periodically via Bluetooth to conserve power and may disconnect when not in use. Charging duration and battery performance can differ based on individual usage patterns. **Water Resistance & Daily Wear** With an IP68 water resistance rating, the ring is suitable for daily activities like hand washing, workouts, and light water exposure. For comfort and skin care, we suggest taking the ring off periodically, particularly during prolonged wear. **HSA/FSA Eligibility** This HSA and FSA eligible smart ring permits qualified customers to utilize HSA or FSA funds for purchase. It includes advanced health tracking, sleep monitoring, activity tracking, and wellness insights, making it a suitable wearable for men and women. **Package Contents** Ring Pro*1; Charging Dock*1; USB-C Cable*1