Oura Ring 5 Sizing Kit - Size Before You Buy - Unique Non Standard Fit - Reimbursement With Subsequent Smartring Purchase
Product details checked 5 September 2026 · price checked live
Check price on Amazon →Overview
OURA Ring 5 Sizing Kit - Size Before is one of the 43 wearable technology products in our catalogue, tracked on rating, review volume and live price. The maker describes it as follows: The Oura Ring 5 Sizing Kit is the ideal way to find the perfect size. It’s a custom sizer that allows for you, and those around you, to find the perfect fit before purchasing. Oura Ring 5 sizes are different from standard ring sizes. Size yourself with the Oura Ring 5 Sizing Kit. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.6 out of 5 from 364 ratings. What that score is worth next to its rivals is set out below.
- Brand
- OURA
- Amazon rating
- 4.6 / 5 from 364 ratings
- vs Wearable Technology
- 0.2 above the category median of 4.4
- Rank in category
- 16 of 43 rated wearable technology we track
- Price position
- Among the cheaper options (category spans £3.99 to £319)
- How proven
- Fewer ratings than most rivals here, so less settled
Price range as of · details
How it compares in Wearable Technology
Across the 43 rated wearable technology products we track, the typical score is 4.4 out of 5. This one sits at 4.6, which puts it in the upper quarter of the category rather than level with it. Where almost everything is rated well, the gap at the top is small in points and large in practice.
It carries 364 ratings against a category median of 3,467. That is a thin base by the standards of this category, so treat the score as provisional: a handful of extra reviews can still move it either way.
On price it sits in the lower third of a category running from £3.99 to £319, where the midpoint is about £7.99. Cheaper than most while rating at or above the category norm is the combination worth looking for, and it is the main argument for this one.
Category prices as of · details
Worked out from the 43 wearable technology products in our catalogue, not from the brand's own claims. How we rank →
Key features, as the manufacturer lists them
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
- OURA RING 5 SIZING KIT - The Oura Ring 5 Sizing Kit is the ideal way to find the perfect size. It’s a custom sizer that allows for you, and those around you, to find the perfect fit before purchasing
- SIZE BEFORE YOU BUY - Oura Ring 5 sizes are different from standard ring sizes. Size yourself with the Oura Ring 5 Sizing Kit
- NON STANDARD SIZING - Oura Ring 5 sizes are slightly different from standard ring sizes and other Oura Ring sizes. It’s important to size yourself using our Oura Ring 5 Sizing Kit. Oura Ring 5 is available in sizes 6-13. There are no half sizes
- COMFORT AND ACCURACY - A properly fitting Oura Ring 5 will result in the highest data accuracy, comfort, and overall experience
- CHOOSE A FINGER - Oura Ring 5 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring 5 on your index, middle, or ring finger. Size the exact finger you plan to wear your Oura Ring 5 on
