Oura Ring 5 (Gen 5) Smart Ring Health Tracker

Sleep, Activity, Women's Health & AI Advisor — Compatible with Android & iOS

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Product Overview

The Oura Ring 5 is Oura's smallest and lightest smart ring to date — 40% smaller in volume than the previous generation, while still delivering a full week of battery life. It's built with a fully titanium body, a redesigned sensing architecture, and 12 signal pathways for more accurate readings across more finger types and skin tones.

Key Features

• Sleep Tracking: In-depth sleep staging, sleep score, and nightly recovery insights
• Activity & Readiness: Daily activity, calorie burn, and readiness scores
• Heart Rate & HRV: Continuous heart rate and heart rate variability monitoring
• Temperature Sensing: Skin temperature tracking for cycle and illness insights
• Women's Health: Period prediction and cycle insights, with Natural Cycles compatibility
• Oura Advisor (AI): Personalized AI-powered health guidance based on your data
• Blood Oxygen (SpO2) Sensing
• Battery Life: Typically 6–9 days per charge; ~80 minutes to fully charge
• Water Resistance: IP68 rated, water-resistant to 100 meters
• Material: Titanium with scratch-resistant PVD coating
• Dimensions: 6.09mm width, 2.28mm thickness — noticeably slimmer and lighter than Oura Ring 4
• Connectivity: Bluetooth, works with the free Oura App on Android & iOS

What's Included

• 1 x Oura Ring 5 (Brand New / Never Worn)
• 1 x Charger
• ❌ No original retail box
• ❌ No charging cable included

📏 Sizing Chart — Oura Ring 5 (Sizes 6–13)

Oura Size	US Ring Size (approx.)	Inner Diameter (mm)	Inner Circumference (mm)
6	5.5 – 6	15.7	49.3
7	6 – 6.5	16.5	52.0
8	6.5 – 7	17.4	54.7
9	7 – 7.5	18.2	57.3
10	7.5 – 8	19.1	60.0
11	8 – 8.5	19.9	62.7
12	8.5 – 9	20.8	65.3
13	9 – 9.5	21.6	68.0

⚠️ Note: Oura sizing does not match standard US jewelry ring sizes exactly, and there are no half sizes. Oura Ring 5 uses a different internal sizing system than Oura Ring 4, so do not rely on a previous Oura ring size. The safest options are ordering a free official Oura Sizing Kit from Oura, or getting sized in person and for free at any Best Buy location.

Shipping & Returns

• 🚚 Same-day shipping if purchased before our daily cutoff time
• ↩️ 30-day return policy
• Please confirm your correct size before purchasing to help us both avoid a return

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Oura® and Oura Ring® are registered trademarks of Ōura Health Oy. This listing is not affiliated with or endorsed by Oura.