I have replaced my beloved ring with the exact same ring to restore battery life for traveling. The ring originally lasts 5-7 days but at my use (I don’t use any power saving features like airplane mode) it was only lasting 2-3 days between charges, causing me to lose data. Perfectly functional with diminished battery life. Condition: many tiny scratches visible in photos. Barely noticeable discoloration from gold to silver on edges near sensors (worn facing in). Factory reset. Will send with charger and USB cable in original box, doesn’t include usb port wall block, can work with any USB charging port. This ring is about 18 months old, purchased Oct 2022, stopped wearing March 2024. Requires an active Oura subscription to view most of your data via smart phone app ($6/monthly at the moment), so please be aware of this before purchase. Original price before tax $499, screenshot included.