−48%
Used
Oura Ring 4
8, GoldDelivered between Tue, 25.8. and Mon, 31.8.
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Used offer
| Condition | Used |
| Description | Various signs of wear. Ring was worn for approximately 4 months. Fully functional. |
| Purchased on | 25.2.2026 |
| Warranty | Valid until 24.2.2028 |
Product details
The Oura Ring 4 is the latest generation of Oura's smart ring. Made entirely from titanium, the smart ring employs the new smart sensing platform. It customises itself to you, captures your biometric values and offers you insights into over 30 biometric parameters, such as sleep, daily form, activity, heart health, stress and women's health. With up to eight days of battery life, the Oura Ring monitors your health and is so comfortable you'll hardly notice it's there.
Oura membership
In order to use all functions of the Oura Ring, a membership is required. Without a membership, the Oura Ring can only be used with limited functionality and you will not have access to the Oura API, but you can download all your personal data from Oura on the Web. With the Oura membership you get a detailed sleep analysis every morning and can track sleep, stress, activity, heart rate and much more. The first month of membership is free, after that it costs 5.99 USD per month. An annual membership is available for 69.99 USD. For more information: https://ouraring.com/de/membershipColour | Gold |
Material group | Metal |
ring size | 8 |
Health functions | Cycle protocol, Oxygen saturation, Respiratory rate, Sleep recording, Stress levels, Temperature detection |
Weight | 5.20Â g |
Item number | 53420540 |
Manufacturer | Oura |
Category | Smart rings |
Manufacturer No. | JZ90-54216-08 |
Release date | 14.1.2025 |
Sales rank in Category Smart rings | 7 of 280 |
Colour | Gold |
Exact colour description | Gold |
Material group | Metal |
Material | Titanium |
ring size | 8 |
Health functions | Cycle protocol, Oxygen saturation, Respiratory rate, Sleep recording, Stress levels, Temperature detection |
Sensors | Accelerometer, Heart rate monitor, Infrared sensor |
Connectivity | Bluetooth Low Energy |
Durability | Waterproof (10 ATM) |
Protection type (IP code) | Waterproof |
Power supply | Rechargeable battery operated |
COâ‚‚ emissions | 0.03 kg |
Climate contribution | CHFÂ 0.11 |
Scope of delivery | Battery charger, USB-C cable |
Items per sales unit | 1x |
Weight | 5.20Â g |
Length | 12.20Â cm |
Width | 11.60Â cm |
Height | 3.90Â cm |
Weight | 188Â g |
Specifications may include unverified machine translations.
Valid until 24.2.2028