Smart Ring Compatible with iOS Android,2 NFC Safe Quick Trigger Instruction (Phone/Location/SOS),Support Simulation of 4 ID/IC Smart Cards,Waterproof,Ceramic Ring for Men Women (Size:8)

CatXQ Smart Ring Compatible with iOS Android,2 NFC Safe Quick Trigger Instruction (Phone/Location/SOS),Support Simulation of 4 ID/IC Smart Cards,Waterproof,Ceramic Ring for Men Women (Size:8)

Oura Ring 4 - Silver - Size 8 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life

RingConn Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Find The Perfect Ring Size Smart Ring Size - Only Smart Ring