Oura Gen3 Heritage Smart Ring - Size 7, Black | Sleep, Heart Rate and Fitness Tracking Wearable - Up to 7 Day Battery Life - iOS/Android Compatible - Size First with Oura Sizing Kit

SIZE BEFORE YOU BUY - Oura Ring sizes are different from standard ring sizes. Purchase an Oura Ring Sizing Kit on Amazon and receive an Amazon credit of GBP 10 towards the future purchase of an Oura Ring (terms and conditions apply) THE REVOLUTIONARY SMART RING - Track your sleep, activity, stress, heart rate and more with Oura Membership. New members get the first month free, after which the price is GBP 5.99 per month. Register for Oura Membership in the Oura App MORE ACCURATE BY DESIGN - Your finger provides the most accurate pulse reading, making your health data and insights more personalised than ever. The Oura Ring’s research-grade sensors monitor over 20 biometric indicators with precision SYNC WITH YOUR FAVOURITE APPS - Compatible with iOS and Android - Oura seamlessly integrates with over 40 apps, including Apple Health, Google Health Connect, Natural Cycles, Flo, Strava and more EASY TO WEAR, EVERYWHERE - Every Oura Ring is made of titanium: built to last, lighter than the average wedding ring, non-allergenic and water resistant. From a workout to a night out, the Oura Ring discreetly monitors your health with comfort and accuracy