The best smart ring in a great deal: Oura Ring 4 now costs just under 8 thousand CZK

If you’ve been looking for an opportunity to purchase a top-of-the-line smart ring, now is the perfect time. The Czech e-shop Alza is offering premium Oura Ring 4 smart rings with a 20% discount when using a special code. The basic versions in Glossy Black and Silver finishes are therefore available for just 7,992 Kč instead of the original 9,990 Kč, making them more affordable than ever before.

Premium features in a miniature body

The Oura Ring 4 is among the absolute top in the smart ring category. The device stands out with its full titanium body, which increases durability while reducing weight to just 4 grams. Users will also appreciate the water resistance up to 100 meters (10 ATM), meaning they don’t have to worry about wearing the ring while swimming or showering.

The ring offers advanced health features including blood oxygen saturation measurement, sleep monitoring, stress level measurement, body temperature, and heart rate. It also includes menstrual cycle tracking for female users. The battery life of up to 8 days (192 hours) on a single charge is also exceptional, significantly surpassing competing models.

Compatibility with both Android and iOS operating systems ensures that virtually any smartphone owner can purchase the ring. The connection between devices is made via Bluetooth technology, while charging is done using a modern USB-C charger, which is included in the package.

Significant improvement over the previous generation

The fourth generation of the Oura smart ring represents a significant leap over the previous version. While the Oura Ring 3 (Gen3) was already a quality product, the new model brings several key innovations that significantly improve the user experience and measurement accuracy.

The most visible difference is the redesigned inner part of the ring. While the Oura Ring 3 had three raised “bubbles” with sensors that could be uncomfortable during long-term wear, the Oura Ring 4 features recessed sensors and a smooth inner surface. This makes all-day wear much more comfortable and the ring easier to put on and take off.

Significant improvement also came in the area of sensing technology. The new Smart Sensing technology uses 18 signal paths (compared to just 8 in the previous generation), which significantly increases measurement accuracy. According to the manufacturer, the Oura Ring 4 has up to 120% better SpO2 detection and 30% higher accuracy in night measurement.

Comparison with the competition

Perhaps the most well-known competitor to the Oura Ring 4 is the Ultrahuman Ring Air – although reviewers worldwide agree that Oura also beats other brands – which also focuses on tracking health parameters. However, the Oura Ring 4 has the upper hand in several key areas. The most significant difference is in battery life – while the Ultrahuman lasts approximately 6 days, the Oura Ring 4 offers up to 8 days of operation on a single charge.

The Oura Ring 4 also excels in the accuracy and depth of sleep data. It is considered one of the most accurate rings for sleep tracking, including detailed analysis of individual sleep stages (light, deep, REM) and a comprehensive sleep score. The Oura app is also considered by many to provide a more user-friendly environment with a clearer display of data and long-term trends.

A clear comparison of all three models can be found in the following table:

All variants and their prices

In addition to the basic versions in black and silver, the Oura Ring 4 also offers other premium variants. The elegant Brushed Silver (matte silver) and Stealth (matte black) are available for 11,490 Kč (with code ALZADNY20 for 9,192 Kč). For more demanding customers, luxurious versions in Gold and Rose Gold are available for 13,690 Kč (with code ALZADNY20 for 10,952 Kč).

For comparison, the older model Oura Ring 3 (Gen3) in Heritage Silver finish is now available at a clearance price of 5,490 Kč, which represents an interesting alternative for those who want to save money and don’t mind compromises in comfort and measurement accuracy.

All variants are available in various sizes, and it is important to choose the correct size for optimal comfort and functionality. For this purpose, a special Sizing Kit is recommended to be purchased before buying the ring itself.

Price: from 7,992 Kč

Would you get the Oura Ring 4 smart ring?