Lynx Smart Ring-All Day Sleep & Activity Tracking, Includes Charging Case, Gifts for Men, 7-Day Battery Life, Subscription-Free App for iOS & Android, Size Before You Buy (Silver, Size 13)

Achieve the Ideal Fit: This smart ring features a unique sizing system, distinct from conventional jewelry rings or other products. For precise sizing, always measure with the official sizing kit before ordering. Detailed Health Metrics: Track your sleep, blood oxygen saturation, stress levels, heart rate, steps, distance traveled, and calories expended. It also monitors fitness exercises like walking and running, providing comprehensive insights to help you reach your wellness objectives. No Ongoing Costs: Connect this smart ring to the Health App seamlesslyno subscription is 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. Perfect for extended travel or work trips, it keeps your ring charged and operational. Wear It Constantly: Rated 5ATM waterproof and crafted with a titanium shell for all-day wear, this smart ring withstands activities including swimming and hiking, serving as a dependable partner for monitoring your health and fitness information. Accurate Monitoring 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. HSA/FSA Qualified: This smart ring is qualified for purchase with most Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA). Wearing Instructions: For optimal measurement accuracy, ensure the orientation marker points toward your palm. Also, take off the smart ring before applying lotions or oils to your hands to avoid it slipping off