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 7)

Get the Perfect Fit: This smart ring uses a unique sizing system that differs from standard jewelry rings or other brands. For accurate sizing, it is advised to measure your finger using the official sizing kit before purchase. Comprehensive Insights: Monitor your sleep, blood oxygen levels, stress, heart rate, steps, distance, and calories burned. The smart ring can also track fitness activities like walking and running, providing detailed insights to support your fitness goals. No Subscription Fees: Seamlessly connect the smart ring with the health appno subscription fees are needed. It works with both iOS and Android, and the app syncs with Apple Health and Google Health Connect. Convenient Charging: The smart ring offers up to 7 days of use per charge and comes with a charging case for an additional charge and secure storage while on the move, eliminating the risk of loss. This makes it perfect for extended travel or business trips, ensuring your ring is always prepared for your adventures. All-Day Wear: With a 5ATM waterproof rating and a titanium exterior made for 24/7 wear, the smart ring withstands activities such as swimming and hiking, making it a dependable companion for tracking your health and fitness data in any condition. Precision Tracking at Your Fingertip: Powered by an advanced chip and sensor, the smart ring is carefully designed to deliver precision and reliability in data tracking, serving as your personal health consultant anytime, anywhere. HSA/FSA Eligible: This smart ring is eligible for purchase with most Flexible Spending Accounts (FSA) and Health Savings Accounts (HSA). Wearing Guide: To ensure the most accurate measurements, please make sure the orientation indicator is facing towards your palm. Also, please remove the smart ring before applying slippery substances to your hands to prevent it from falling off