About This

• Titanium Construction & No Subscription: Crafted from high-quality titanium alloy, the Ring D2 weighs only 2.3 grams and is skin-friendly for all-day wear. No monthly subscription fee. All health data is accessible through the dedicated app with no hidden costs
• Portable Charging Case: Includes a portable charging case with a built-in battery. The case stores power independently, allowing you to recharge without a direct power connection. Total usage with the charging case is 14+ days for travel convenience
• 24/7 Health & Activity Tracking: Tracks heart rate, blood oxygen (SpO2), HRV, and sleep stages including deep sleep, light sleep, and REM. The Ring D2 provides daily activity data such as steps, calories burned, and walking distance through the mobile app
• IP68 Waterproof & Daily Durability: IP68 waterproof rating allows for safe use during handwashing, swimming, and showering. The titanium construction is scratch-resistant and designed for daily wear, from workouts to sleeping
• Sizing Guide & Quick Start: Before purchasing, refer to the size chart (Sizes 7-12) to confirm your finger size. After receiving the ring, remove the protective film and charge for 10 minutes before first use. Continuous wear for 7 days is recommended to establish a data baseline
• Family Health Monitoring: Create a free in-app account to monitor your family's health metrics. Add parents, spouse, or other family members to view their sleep, heart rate, and activity data remotely through the mobile app
• Data Privacy & Security: You maintain full control of your health data with options to sync to the cloud or keep it only on your device. Data is encrypted during transmission and storage, and you can delete your data from the cloud at any time directly in the app

Overview

• Operating System : Other
• Memory Storage Capacity : 0.5 MB
• Special Feature : Activity Tracker, Daily Workout Memory, Lightweight
• Battery Capacity : 16 milliamp_hours
• Connectivity Technology : Bluetooth
• Wireless Communication Standard : Bluetooth
• Battery Cell Composition : Lithium Ion
• GPS : No GPS
• Shape : Round
• Brand : dyuanetec