This is the Oura Gen 3 Heritage - Silver ring in the size 07 and the charger that came with it. I wore this religiously (if you can't tell from the scratches) and I love it. I got a new one that I don't need this one anymore otherwise I would've kept it! Other than the scratches - it is like new. It tracks your heart rate, your sleep activity, your workouts, etc. that you can view on the Oura app. It is waterproof. The battery lasts up to a week. It is a very nice ring.