Lynx Smart Ring, Subscription-Free App, Black, Size 12 | All Day Sleep & Activity Tracking, Includes Charging Case, 7-Day Battery Life, Size Before You Buy

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Perfect Fit: This smart ring employs distinctive sizing, which differs from conventional jewelry rings or other brands. For precise sizing, measure with the official sizing kit prior to purchase.
Comprehensive Insights: 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 aid your fitness objectives.
No Subscription Fees: Effortlessly link the smart ring with the health appno subscription fees are needed. The app works with both iOS and Android and synchronizes with Apple Health and Google Health Connect.
Convenient Charging: It features a 7-day battery life and comes with a charging case for an additional charge and secure storage while on the go, reducing the chance of loss. Suitable for extended travel or business trips, it keeps your ring consistently charged and prepared.
All-Day Wear: With 5ATM waterproof rating and a titanium exterior designed for continuous wear, it withstands activities such as swimming and hiking, serving as a dependable partner for monitoring your health and fitness data in all conditions