Oura Smart Ring 4 – Stealth – Size 5 – Non-Standard Fit Measure with a Size Kit Sleep, Heart Rate and Fitness Tracking Wearable 8-Day Battery, iOS / Android Compatible

Compact and intelligent design for comfortable everyday wear
Advanced health monitoring capabilities, including heart rate, sleep patterns, and activity tracking
Long battery life with convenient wireless charging
Seamless smartphone app integration for detailed health and activity analytics
Available in multiple finishes and sizes for personalized style