Interface is a stainless steel ring for people who want to talk to AI agents without taking a phone out of a pocket. Worn at the base of the index finger, it has one button. You press, speak, and release, and NatureOS sends the request to an agent you connect. Natura has named Claude, ChatGPT, Meta's Muse, Instinct, and its own tinyNature among those options. Replies can come back through headphones, an iPhone lock screen, or the NatureOS app. The same button is also how the ring handles memory and health. A press can catch a reminder or a passing thought. A double press starts a meeting recording that NatureOS saves with a transcript, speaker labels, and a recap. Natura says the ring is built to track heart rate, resting heart rate, heart rate variability, sleep stages, steps, and skin temperature, with those health readings still being validated before release. It only records when you use the button. Battery life is rated at 6 to 12 days in typical use, a full charge takes about 100 minutes, and the charging case is expected to hold 10 recharges. The band is 7.35 mm, in US sizes 7 through 13, in a sealed stainless steel design for everyday wear. Preorders are now open on Kickstarter, at the price Natura says will be the lowest the ring will have. An early pledge is $159 for one ring, a charging case, and three months of membership, with shipping estimated for February 2027. The company has said agent features will cost $9 a month after that included period. The campaign, which runs through December 20, 2026, has already passed its $20,000 goal, with 1,094 backers and $148,929 pledged. Natura was founded by Carlo Edoardo Ferraris, who previously founded the accessories company Rolling Square. The Lugano team spent about two years on voice hardware for agents, first with HumanPods earbuds and now with a ring built to stay on through sleep and showers.