Oura Ring 4

The Oura Ring integrates advanced technology with a deep understanding of wellness, offering a truly holistic approach to health tracking. Backed by an in-house team of over 20 PhDs, the rings were refined across four generations, each version smarter, lighter, and more durable than the last, trusted by millions of users worldwide. Its research-grade sensors, comparable to those used in sleep labs, provide highly accurate to ensure you get reliable insights for your wellbeing.

The ring also continuously fine-tunes your health data, delivering increasingly personalised feedback the longer it’s worn. Additionally, each Oura Ring is made from aerospace-grade titanium, one of the strongest materials on earth. Years of testing guarantee they're comfortable to wear and will last long– making them a reliable partner that powers your lifelong health journey.

Born in the happiest country in the world, Oura is the wellness brand behind the revolutionary Oura Ring and Oura App. Combining Finnish craftsmanship with cutting-edge technology, its mission is simple: to make health a daily practice. That’s why they created a tool that fits seamlessly into daily life, offering clear insights to support wellbeing. Empowering individuals to take control of their health, Oura guides everyone on their journey, helping them make informed decisions and lead better, healthier lives.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

WEARING YOUR OURA RING
The Oura Ring is designed for all-day comfort and can be worn 24/7.

TIP: Before purchasing the Oura Ring Gen4, it's a good idea to use the Oura Ring Sizing Kit (sold separately and available at Healf). This custom sizer helps you find the perfect fit, ensuring a more comfortable and accurate health tracking experience.
To avoid discomfort or unintended scratching, it is not recommended to wear the Oura Ring next to other rings.
For optimal wear, it is advised to use the Oura Ring on the non-dominant hand. This minimises friction and helps protect the ring from scratches caused by daily interactions with objects and surfaces.

WATER RESISTANCE
The Oura Ring is water-resistant up to 100 metres (approximately 330 feet).
It can be worn while showering, swimming, or engaging in recreational diving activities such as snorkelling. However, it is not recommended for scuba diving or for submersion underwater for more than 12 hours.

TEMPERATURE GUIDELINES
The Oura Ring operates effectively within a temperature range of -10°C to 52°C (14°F to 125°F).
It can be safely worn in the shower, hot tubs, saunas, ice baths, and cryotherapy tanks. However, prolonged exposure to extreme temperatures—below -20°C (-4°F) or above 60°C (140°F)—may damage the ring’s battery.

BATTERY LIFE
For the Oura Ring Generation 4, a full charge provides up to 8 days of battery life.

CARE AND MAINTENANCE
To clean the Oura Ring, use a small amount of mild dish soap and water, then rinse thoroughly.
Ensure both the ring and hands are completely dry before wearing it again.
Hand sanitiser is safe to use with the ring. For more thorough hand-washing routines, remove the ring while scrubbing and clean it separately as you would other jewellery.
Don’t leave the ring exposed to heat for extended periods.
Don’t puncture the Oura Ring or its battery.

SPECIFICATIONS

HARDWARE:
Styles and Sizes
Oura Ring 4 features a sleeker, fully titanium design and recessed sensors on the interior, enhancing both durability and wearability.
Oura Ring 4 is available in one design and six colors: Black, Silver, Stealth, Brushed Silver, Gold, and Rose Gold. It has an expanded size range, now available in sizes 4-15. No half sizes are offered.



External Surface Materials
Titanium with physical vapor deposition (PVD) coating in Black, Silver, Brushed Silver, Gold, and Rose Gold
Titanium with Diamond-like Carbon (DLC) coating in Stealth 

Inner Surface Materials
Non-allergenic, titanium inner shell. This is a medical grade, BPA-free inner surface
Shock resistance and bonding between printed circuit board and ring outer frame

Connectivity
Bluetooth Low Energy (Bluetooth Smart®)
EMF-Safe and allows Airplane Mode
FCC certified

Other Specifications

Battery: Up to 8 days.
Width: 7.9mm
Thickness: ~2.88mm
Weight: 3.3-5.2 grams (depending on ring size)