Oura Ring 4

11, Stealth
Price in EUR including VAT
Delivered between Sat, 3/5 and Sat, 10/5
5 items in stock at supplier
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Colour

Size

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.

Key specifications

Colour
Grey
Material group
Metal
ring size
11
Weight
5.20 g
Health functions
Cycle protocolOxygen saturationRespiratory rateSleep recordingStress levelsTemperature detection
Item number
53420567

General information

Manufacturer
Oura
Category
Smart rings
Manufacturer no.
JZ90-54218-11
Release date
14/1/2025

Colour

Colour
Grey
Exact colour description
Stealth

Material

Material group
Metal
Material
Titanium

Smart Ring features

ring size
11
Health functions
Cycle protocolOxygen saturationRespiratory rateSleep recordingStress levelsTemperature detection
Sensors
AccelerometerHeart rate monitorInfrared sensor
Connectivity
Bluetooth Low Energy
Durability
Waterproof (10 ATM)
Protection type (IP code)
Waterproof
Power supply
Rechargeable battery operated

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Battery chargerUSB-C cable
Items per sales unit
1 x

Product dimensions

Weight
5.20 g
Diameter
7.90 mm

Package dimensions

Length
12 cm
Width
11.20 cm
Height
3.60 cm
Weight
176 g

14-day cancellation right
30-day right of return
Return policy
24 Months Statutory warrantyGuarantee provisions

Reviews & Ratings

Translation: machine translated
Overall ratingVery good82/100
Very good90/100
PC Welt Online Logo
PC Welt OnlineSingle testReleaseApril 2025
  • PositiveImproved battery life
  • PositiveLots of useful tracking information
  • PositiveVery comfortable to wear
  • NegativeEngraving is a matter of taste
  • NegativeScratches quickly
  • NegativeYou need an additional subscription

The Oura Ring 4 offers the best balance of design, tracking and battery, making it an outstanding smart ring as a complete package.

This test report belongs to a different type: Ring 4 (4, Black)
Good74/100
Computer Bild Logo
Rank 3 out of 8Computer BildSmarte Ringe im TestReleaseMarch 2025
  • PositiveHeart rate measurement good
  • PositiveSleep analysis good
  • PositiveSports recording possible
  • NegativePlan (5.99 euros/month) required
  • Negativeto use all functions

The Oura Ring 4 can do the same as the Ring 3, but is housed in a slim titanium casing. The battery life is good and the ring can be conveniently charged on the pad - but only with a permanent power supply. The good and detailed analysis actually speaks in favour of Oura. But it is only available with a plan (5.99 euros/month)...