Analysis
Natura launched Interface, a $99 smart ring that lets wearers summon AI agents with a finger press, undercutting health-focused smart-ring rivals on price while leaning on AI-agent access rather than clinical health tracking as its core pitch, per TechCrunch.
What it does
A press of the ring summons an AI agent to complete tasks, capture thoughts or control connected devices, including computers; responses arrive through headphones, an iPhone Live Activity, or Natura's own app. The ring connects to Meta's Muse, Instinct, Grok Bot, Anthropic's Claude and OpenAI's ChatGPT, making it agent-agnostic rather than locked to one backend. It also tracks heart rate, resting heart rate, HRV, sleep stages, activity, steps and skin temperature, with 6 to 12 days of battery life and a 100-minute full recharge. Founder Carlo Edoardo Ferraris, who previously built accessories company Rolling Square, said the ring form factor works because it is basically an extension of you, and that the main interface between users and technology is going to be the ring.
“It also tracks heart rate, resting heart rate, HRV, sleep stages, activity, steps and skin temperature, with 6 to 12 days of battery life and a 100-minute full recharge.”
Pricing against the health-wearable establishment
Natura's $99 hardware price, with an initial three-to-six-month free trial before a $9 monthly subscription, undercuts the category's leaders on upfront cost.
Oura raised $900 million from Fidelity in October 2025 on a subscription-first health model.
Ultrahuman just raised $70 million at a $365 million valuation, also leaning on health subscription revenue. Natura is making the opposite bet -- cheap hardware, a short free runway, and AI-agent utility as the reason to keep paying, rather than clinical-grade health metrics.
Competitive and historical context
Smart rings built around AI-agent access are not new territory for failure: Humane's AI Pin and Rabbit's R1 both tied hardware tightly to one AI backend and struggled to find a market once the novelty faded and the backend's limitations showed. Natura's multi-agent approach -- supporting Muse, Instinct, Grok Bot, Claude and ChatGPT at once -- is a direct attempt to avoid that single-point-of-failure problem, letting the ring survive even if one agent provider stumbles. Named competitors in the smart-ring category also include RingConn, Pebble, Vocci and Samsung's Galaxy Ring.
The counterweight
A $99 ring with a free multi-month trial is also a company betting it can convert a meaningful share of trial users to a $9 monthly subscription before the venture math runs out; Natura has not disclosed funding, revenue, or how many rings it has pre-sold, and TechCrunch's report does not include any investment figures. Agent-agnostic routing also depends entirely on third parties -- Meta, xAI, Anthropic and OpenAI -- keeping their APIs open to a hardware partner with no disclosed scale.
What to watch
Whether Natura discloses any funding or unit-sales numbers in the coming months, and whether the multi-agent approach holds up if one of the five AI backends it depends on restricts third-party hardware access the way some labs have done before.