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- Comprehensive analysis
- High quality and robust workmanship
- DSGVO-compliant
- Excellent sleep analysis
- Precise pulse measurement
- expensive
−17%
Used
Oura Ring 4
11, SilverDelivered between Wed, 7.10. and Tue, 13.10.
Buy used from
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Used offer
| Condition | Used |
| Description | Selling because I ordered the new ring model. Size 11, silver. Used daily since purchase. |
| Purchased on | 28.11.2025 |
| Warranty | Valid until 27.11.2027 |
At a Glance
Comprehensive biometric data tracking
The integrated sensors continuously measure over 30 different health parameters such as sleep, heart rate, breathing rate and stress levels during daily use.
Long battery life
Offering up to 8 days of power on a single charge, the device enables long-term monitoring without frequent charging interruptions.
Durable titanium material
The casing, crafted entirely from titanium, reliably protects the internal components against everyday wear and tear.
In Detail
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/membership
Valid until 27.11.2027