Oura CEO baits Apple with smart ring shade: its hard to do this Ring "Aura" Oura's smart ring that everyone wants right now gets a huge 150 Black Oura Ring. Smart Ring for Fitness, Stress, Sleep & Health. The Lean Guide to Product Research. Handmade porcelain Unisex Care Taking proper care of your jewellery is essential for extending its lifespan and maintaining its original appearance. We recommend removing your jewellery before applying oils, lotions, creams, or perfumes. Additionally, take it off when washing your hands, swimming at the beach or pool, or handling household chemicals. To prevent scratches, store each piece separately from other accessories. Porcelain is delicate, so handle your TSVITE TEREN jewellery with care.??