Oura Ring 5 Sizing Kit

Get your fit right before you buy. Our Oura Ring 5 Sizing Kit helps you size accurately so your new ring delivers precise data and comfortable wear. This kit is essential because Oura Ring 5 sizes differ from standard rings and from Oura Ring 4. Use it to choose the correct size for long-term comfort and reliable health insights. Available sizes range from 6 to 13. There are no half sizes, so pick the closest whole size for the best fit. If you plan to wear the ring on a specific finger, size that exact finger for optimal accuracy. The ring works on all fingers and can be worn on either hand, but for the most accurate readings we recommend sizing for your index, middle, or ring finger. A correctly fitted Oura Ring 5 improves data accuracy, comfort, and overall user experience. Ordering the right size online is easy—match your finger and pick the size that feels snug but comfortable. Fast delivery options may be available after you place your order. If you’re unsure, the sizing kit helps you confirm the best choice before you buy, avoiding returns and ensuring you get the best value.