OURA Ring 4 Size 11 smart ring, 8 days battery

This smart ring from Oura combines discreet design with continuous health monitoring, offering sleep and activity tracking in a compact rose gold form that can be worn day and night for a subtle health overview. It is aimed at users who want a lightweight fitness tracker that monitors sleep, heart rate and recovery while remaining unobtrusive in daily life.

Key Points

The Oura Ring 4 uses Smart Sensing technology to track more than 30 physiological signals, including sleep stages, resting heart rate and activity levels. The ring is made from titanium and is designed for continuous wear, with water resistance and a low-profile finish that reduces interference during daily tasks and sleep. Battery life is stated as up to eight days according to the manufacturer, which minimises the need for frequent charging and keeps the device out of the way. The product is supplied in size 11 and comes in a rose gold colour, with a sizing kit available to confirm the best fit before purchase.

Technical Specifications

• Name: Oura Ring 4 Rose Gold Size 11
• Material: Titanium
• Battery life: Up to 8 days (manufacturer specification)
• Water resistance: Yes
• Sensing: Smart Sensing, tracks over 30 metrics
• Included: Sizing kit available

Benefits

Wearing the ring continuously allows for a steady stream of overnight and daytime data that can help highlight patterns in sleep and recovery. The discreet format removes the bulk of wrist-worn devices and avoids distracting screens or vibrations, which may make it easier to maintain natural sleep habits. The titanium construction offers durability and a light touch on the finger, which the manufacturer suggests is comfortable even for sensitive skin.

Usage Recommendations

Use the sizing kit first to confirm your ring size, as Oura sizes differ from conventional jewellery sizes and getting the correct fit improves sensor contact and data accuracy. Pair the ring with the Oura app to access the first month of subscription features for free according to the offer linked to new ring purchases. After that period, ongoing access to full analytics is available via subscription, with monthly and annual plans offered by Oura.

Consider that while the ring collects a broad set of health indicators, access to the full suite of insights requires an app subscription. Also, users who need an always-on display or frequent haptic alerts may find the ring’s minimalist feedback less immediately informative than a smartwatch.