Lynx Smart Ring-All Day Sleep & Activity Tracking, Includes Charging Case, 7-Day Battery Life, Subscription-Free App for iOS & Android, Size Before You Buy (Black, Size 8)

Achieve the Perfect Fit: This smart ring features a unique sizing system, distinct from conventional jewelry rings or other brands. For precise sizing, always measure with the official sizing kit prior to purchase. Extensive Health Monitoring: Track your sleep, blood oxygen saturation, stress levels, heart rate, steps taken, distance covered, and calories expended. This device also records fitness activities including walking and running, providing detailed data to help achieve your fitness objectives. No Ongoing Costs: Connect the smart ring effortlessly with the health applicationno subscription fees are needed. It works with both iOS and Android devices, and the app integrates with Apple Health and Google Health Connect. Handy Charging Solution: Featuring a 7-day battery life, this smart ring comes with a charging case that provides an additional charge and secure storage on the go, reducing the chance of misplacement. It is perfect for extended travel or business trips, keeping your ring charged and prepared for any activity. Wear It Continuously: With 5ATM water resistance and a titanium exterior built for constant wear, this smart ring withstands activities like swimming and hiking, serving as a dependable partner for monitoring your health and fitness data in all conditions. Accurate Tracking on Your Finger: Equipped with an advanced chip and sensor, this smart ring is carefully engineered to deliver accurate and dependable data tracking, acting as your personal health advisor wherever you go. HSA/FSA Qualified: This smart ring qualifies for purchase using most Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA). Wearing Instructions: For optimal measurement accuracy, ensure the orientation indicator faces your palm. Also, remove the smart ring before applying any slippery substances to your hands to avoid it slipping off