Q: What sizes does the Oura Ring 5 come in?

Sizes 6 to 13, a narrower range than the Ring 4’s 4 to 15. A new sizing kit applies, so order one before you buy if you are unsure of your fit.

Question 1

What is the main difference between the Oura Ring 4 and Oura Ring 5?

Accepted Answer

The Oura Ring 5 is roughly 40 per cent smaller and lighter than the Ring 4, with a redesigned sensor system, longer battery life of 6 to 9 days, and a £50 price rise. Most of the new software features (Health Radar, Blood Pressure Signals, Live Activity Tracking) are available on both rings, so the differences are mainly physical.

Question 2

How does the Oura Ring 5 size compare to the Ring 4?

Accepted Answer

The Oura Ring 5 measures 6.09mm wide and 2.28mm thick, against the Ring 4&#8217;s 7.90mm and 2.88mm. The Ring 5 weighs 2 grams, compared to 3.3 to 5.2 grams for the Ring 4. The size range is narrower at 6 to 13 (the Ring 4 was 4 to 15).

Question 3

Do the new Oura Ring 5 features work on the Ring 4?

Accepted Answer

Yes, for the most part. Health Radar, Blood Pressure Signals, Nighttime Breathing, Live Activity Tracking, GLP-1 Insights, and Locate all reach the Ring 4, and most reach the Gen 3. The hardware-bound gains, chiefly the smaller size, longer battery life, and improved activity detection, stay with the Ring 5.

Question 4

Does the Oura Ring 5 measure blood pressure properly?

Accepted Answer

No. It tracks blood pressure patterns overnight and flags possible strain, and you can log readings from an ordinary cuff. It does not give a clinical systolic and diastolic measurement.

Question 5

Do you still need a subscription?

Accepted Answer

Yes. The Oura membership costs £5.99 or $5.99 a month on both the Ring 5 and the Ring 4, and the ring offers little without it. The Counsel Health care service costs extra again.

Question 6

Is the Oura Ring 5 worth it over the Ring 4?

Accepted Answer

For a new buyer who wants the smallest, most comfortable ring, yes. For an existing Ring 4 owner, usually not, because the important software is coming to the Ring 4 anyway. The upgrade is about comfort and battery, not features.

Question 7

What sizes does the Oura Ring 5 come in?

Accepted Answer

Sizes 6 to 13, a narrower range than the Ring 4&#8217;s 4 to 15. A new sizing kit applies, so order one before you buy if you are unsure of your fit.

Question 8

Can you trade in an Oura Ring 4 for the Ring 5?

Accepted Answer

Oura does not run a permanent trade-in or upgrade programme. The company has offered short-term discounts to existing members in the past, but there is no standing option to swap a Ring 4 for a Ring 5 at a reduced price. Your best option is to sell the Ring 4 privately and use the proceeds against a new Ring 5.

Question 9

Does the Oura Ring 5 use the same charger as the Ring 4?

Accepted Answer

No. The Ring 5 ships with its own size-specific charger and a USB-C cable. A separate Ring 5 charging case, priced at $99, holds up to five full charges and adds wireless charging. Ring 4 chargers and cases do not fit the Ring 5.

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