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 7)

Achieve the Perfect Fit: This smart ring features a unique sizing system, distinct from standard jewelry rings or other brands. For precise sizing, always measure with the official sizing kit prior to purchase. Comprehensive Health Monitoring: Track your sleep, blood oxygen levels, stress, heart rate, steps, distance, and calories burned. It also monitors fitness activities including walking and running, providing detailed insights to help you reach your fitness objectives. No Subscription Required: Connect the smart ring seamlessly to the health appno subscription fees are needed. It works with both iOS and Android, and the app integrates with Apple Health and Google Health Connect. Convenient Power Solution: This smart ring offers up to 7 days of use per charge and comes with a charging case for an extra 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. Wear It All Day: With 5ATM water resistance and a titanium exterior built for 24/7 wear, this smart ring withstands activities like swimming and hiking, serving as a dependable partner for monitoring your health and fitness data in any condition. Precise Tracking at Your Fingertip: Equipped with an advanced chip and sensor, this smart ring is carefully engineered to deliver accurate and reliable data tracking, acting as your personal health advisor wherever you go. HSA/FSA Eligible: This smart ring qualifies for purchase with most Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA). Wearing Instructions: For the most accurate readings, ensure the orientation indicator faces your palm. Also, remove the smart ring before applying slippery substances to your hands to avoid it slipping off