Are the sizes of the different Oura generations consistent? In other words, if I have a size 12 on the Gen 1, can I order a size 12 on the Gen 4 without any problems? Or do I really need the sizing kit again?

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Answer

Unfortunately the manufacturer does not provide any information on this, but to be on the safe side we would recommend the sizing kit.

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Question about Oura Ring 4

Are the sizes of the different Oura generations consistent? In other words, if I have a size 12 on the Gen 1, can I order a size 12 on the Gen 4 without any problems? Or do I really need the sizing kit again?