The Volas Smart Ring is for someone who wants a ring-shaped wearable and can work from the short listing.
It may suit you if Black or Gold is enough, and you want the listed wellness data, Bluetooth 5.3, 7–9 day battery and 5ATM line. It is a weaker fit if you need a published ring size, an app name or medical-grade accuracy.
See the Volas Smart Ring if that profile is you.