you can use it alongside a ring chart to measure ring size. There are a variety of downloadable, printable ring charts online (such as this one from Kay Jewelers) that illustrate a variety of ring ...

Find a printable ring size chart online that you can use at home. Print the chart and place your ring on the circles provided ...

Then, by comparing this measurement to a ring size chart, you will be able to narrow ... or you could even order a ring sizer ...

You can find the approximate internal dimensions of each Ring 3 size below. The above table should be used as a guide, and we don’t recommend using the dimension chart to pick an Oura Ring size.

Choosing the right size for a smart ring can be a real headache, with customers needing to use sizing kits before purchasing. Patents reveal that companies are developing smart rings that can ...