💍 Smart ring – Size 10 ✨ Smart ring with an elegant and modern design Specifications: * ❤ Heart rate measurement * Blood oxygen level measurement * 😴 Sleep tracking * 👣 Step and daily activity tracking * 🔥 Calorie calculation * 📱 Connects to mobile via its app * 💧 Water resistant * 🔋 Rechargeable battery * 📏 Size: 10 Selling for offers. The item is new, I only opened it to check the size and it didn't fit me. 🔴 Reason for selling: The size is not suitable.