Oura Ring 4
Smart ring · iOS and Android
- Cheapest price
- £244
- Subscription
- £69.99/yr
- Over 3 years
- £453.97
Prices
- John Lewis£244View at John Lewis (opens in a new tab)
- Oura£244.30View at Oura (opens in a new tab)
- EE£249View at EE (opens in a new tab)
- AmazonAmazonFind it on Amazon (opens in a new tab)
We earn commission on some of these links. It never changes the order. Disclosure
What it measures
- Heart rate
- Resting heart rate
- HRV
- Sleep stages
- Deep sleep
- Blood oxygen
- VO2 max
- Breathing rate
- Skin temperature
- Readiness score
- Steps
- ECG (no)
- GPS (no)
- Blood pressure (limited)
- Cycle tracking
As ouraring.com states it.
What it does
An all-titanium smart ring worn on the finger day and night. Red, green and infrared LEDs, a temperature sensor and an accelerometer record heart rate, HRV, blood oxygen, temperature trends and movement, which the Oura app turns into sleep, readiness and activity scores.
From the description on ouraring.com.
Oura Ring 4 specs
- Type
- Smart ring
- Works with
- iOS and Android
- Battery
- 5 to 8 days (maker's claim, varies by ring size)
- Water resistance
- Water resistant to 100 m
- Width
- 7.90 mm
- Thickness
- 2.88 mm
- Weight
- 3.3 to 5.2 g, depending on ring size
- Materials
- Titanium inner and outer surfaces, seamless titanium interior
- Sensors
- Red, green and infrared LEDs, digital temperature sensor, accelerometer
- Connectivity
- Bluetooth Low Energy; supports airplane mode
- Charging time
- Typically 20 to 80 minutes, depending on battery level
- Operating temperature
- -10 to 52 °C
- Finishes
- Silver, Stealth, Gold
- Sizes
- Fitted with a sizing kit; no half sizes
- In the box
- Ring, size-specific charger, USB-C cable
Further specs from ouraring.com.
How it compares
- To buy, it is the 2nd cheapest of 8 smart rings we compare (the middle one costs £279.65).
- Over three years, subscription included, it is the 6th cheapest of 8 smart rings.
- It measures 5 of the 8 features we compare; the middle smart ring measures 5.
- It needs a subscription, as 2 of the other 7 do.
Oura Ring 4 reviews and discussions
Reviews
- Engadget review of the Oura Ring 4
- TechRadar review of the Oura Ring 4
- Tom's Guide review of the Oura Ring 4
- Digital Trends review of the Oura Ring 4
Which?
- Which? tests of this kind of product members' content
Owners talking about it
- Oura Ring 4 Hacker News
Links to other sites' reviews and discussions; we do not run them and they are not ours.
Subscription
- Oura Membership required: £69.99 a year (£5.99 a month).
- Adds: Scores, insights, trends and Oura Advisor in the app; first month free
- Source: ouraring.com
Questions
- Where is the Oura Ring 4 cheapest?
- John Lewis, at £244 when checked on 2026-10-29.
- Does the Oura Ring 4 need a subscription?
- Oura Membership required: £69.99 a year. It adds: Scores, insights, trends and Oura Advisor in the app; first month free
- What does the Oura Ring 4 cost over three years?
- £453.97, the price plus any required subscription.
- How does the Oura Ring 4 compare with other smart rings?
- To buy, it is the 2nd cheapest of 8 smart rings we compare (the middle one costs £279.65). Over three years, subscription included, it is the 6th cheapest of 8 smart rings. It measures 5 of the 8 features we compare; the middle smart ring measures 5.
Compare with
- 1
- 3 years
- £399
- Price
- £399
- Subscription
- None
- 2
- 3 years
- £429
- Price
- £429
- Subscription
- Optional
- 3
- 3 years
- £489.27
- Price
- £279.30
- Subscription
- £69.99 a year
Readings are not a diagnosis. If you are worried about your health, speak to your GP, pharmacist or NHS 111. How we earn.