Oura Ring OURA RING Gen3 Heritage ・Color: Black ・Size: 09 I used this only when sleeping to check my sleep quality. It was working without any problems. Only those who understand that this is a used item, please. Overall, I think it's in good condition, but there are some minor scratches. [Included Items] ・Oura Ring body ・Charger ・Charging cable ・Box ・Instruction manual