Oura Ring 5 smart ring

Last updated: 4 October 2026

What the Oura Ring 5 tracks

Sensors on the inside of the band read your heart rate and heart rate variability around the clock, along with breathing rate, temperature trends, blood oxygen and movement. Oura says the pulse signal at the finger is much stronger than at the top of the wrist.

The Oura app turns those readings into daily scores for sleep, readiness and activity. The Amazon listing counts more than 50 health metrics, and the app connects to more than 40 others, including Strava, Flo and Natural Cycles. Oura states that the ring is not a medical device and is not meant to diagnose or treat anything.

What changed from the Oura Ring 4

The Ring 5 is smaller. Oura says it is 40% smaller than the Ring 4, with a rebuilt sensor set and up to nine days of battery, against up to eight on the Ring 4. It is still titanium and still waterproof to 100 metres.

The fit changed too. Oura says the redesigned inside of the Ring 5 sits differently on the finger, so a Ring 4 size does not carry over. You need the Ring 5 sizing kit, and sizes run from 6 to 13 rather than 4 to 15.

Key facts

• Price: £399 in silver, direct from Oura and on Amazon UK on 4 October 2026; gold was £499 on Amazon UK
• Membership: £5.99 a month or £69.99 a year; the Amazon listing says new members get the first month included
• Material: titanium
• Battery: up to nine days, according to Oura
• Water resistance: waterproof to 100 metres, so it can be worn in the shower and the pool
• Sizes: 6 to 13, using the Ring 5 sizing kit
• Tracks: heart rate, heart rate variability, breathing rate, temperature trends, blood oxygen, sleep and activity
• Rating: 4.4 out of 5 from 2,188 ratings on Amazon UK

Who it suits

• People who will not sleep in a smartwatch: a ring is smaller and lighter on the hand overnight.
• Anyone tracking recovery: the daily readiness score is built from the overnight readings, so it is waiting when you wake up.
• People who want health data without notifications: there is no screen, so nothing lights up during a meeting.

If you would rather have a screen on your wrist, our Pixel Watch 4 page covers Google's smartwatch, and the Pixel Watch 4 review looks at its Fitbit sleep tracking.

The limits

The membership adds to the cost. Without it the ring works with limited features only, so budget £69.99 a year on top of the £399 ring if you pay annually.

Sizing matters more than with a watch. Order the sizing kit first and wear the sample ring for a day before you buy, because Oura has no half sizes. A Ring 4 owner cannot reuse their old size.

The Ring 5 also has a smaller size range than the Ring 4. If you need a size below 6 or above 13, the Ring 5 will not fit.

Where to buy the Oura Ring 5 in the UK

Amazon UK sells the silver Oura Ring 5 at £399, sold and dispatched by Amazon. The Oura Ring 5 page on Oura's site lists every finish, the membership terms and the free sizing kit.

Oura Ring 5 on Amazon UK

FAQs

How much is the Oura Ring 5 in the UK?

£399 in silver, direct from Oura and on Amazon UK on 4 October 2026. Gold cost £499 on Amazon UK.

Do you have to pay a subscription for the Oura Ring 5?

For full use, yes. Oura membership costs £5.99 a month or £69.99 a year, and without it the ring has limited functionality.

How long does the Oura Ring 5 battery last?

Up to nine days, according to Oura, depending on ring size and settings.

Is the Oura Ring 5 waterproof?

Yes. Oura rates it waterproof to 100 metres, so you can shower and swim in it.

Can I use my Oura Ring 4 size for the Ring 5?

No. Oura says the Ring 5 fits differently, so use the Ring 5 sizing kit before you order.

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