Ultrahuman Ring AIR - Size 12 Matte Grey

TCH R20 iRing - Ring Size 7 Silver 220 mAh

OURA Ring 4 - Stealth Ring Size 6

Shenzhen Ninenovo Technology Limited RingConn Gen 2 Air - Ultra-Thin 10-Day battery

Ultrahuman Ring AIR - Size 12 Space Silver

Ultrahuman Ring AIR - Size 9 Space Silver 6 Days Battery Life

Porodo FitSync Smart Ring - Ring Size 7 (17.3mm) IP68 Water Resistant 16mAh

Amazfit Helio Smart Ring - Size 12 Titanium Alloy

BetterLife Horizons Pvt.Ltd., 18th Floor, Bldg. No.5A, Dlf Cyber City, Gurgaon(HR), India, 122002 Smart Ring - 7+ Day Battery Titanium

Ultrahuman Healthcare PVT LTD Ring AIR - Space Silver Size 14

OURA Ring 4 - Brushed Silver Size 10