Top-Tier AI for Wearable Health Data
Backed by top-tier AI performance, including a 34.8% score on HealthBench Hard, NOX transforms complex wearable data into clear health intelligence you can actually understand.
Nox opens straight into the chat: ask any health question and get an answer with Leo — Nox's medical-safety system — screening for warning signs first. Free to start, no credit card required. <a href="/chat">Open the Nox chat</a>.
Nox is an AI-powered health and wellness companion built by Xhealth, Inc. You talk to Nox in plain language — about symptoms, sleep, nutrition, medications, and everyday wellbeing — and Nox answers clearly, screens for warning signs, and helps you understand when something may need professional care.
Unlike typical smart-ring apps that mainly display data dashboards, Nox is designed as a conversational AI companion at the center of a smart-ring ecosystem — you talk to it, ask it health questions, and it helps you understand your body in plain language. Nox is a companion and educational tool, not a medical device, and not a replacement for a clinician.
Every conversation runs on the Nox model family, and every answer passes through Leo — a safety net, not a diagnosis or a guarantee. Learn how it works and <a href="/transparency">review Nox's transparency information</a>.
Current Nox models and tools
Nox 1.3 Astra is the flagship reasoning model, alongside the faster 1.3 Nova and 1.3 Vela. Nox also offers image generation and charts, Nox's App for confirmation-first connected-app actions, and signed-in MCP integrations. <a href="/models/">Explore the Nox model family</a> or <a href="/features/">see all Nox features</a>.
Topics you can discuss with Nox
- Understanding symptoms and getting guidance on whether something may need professional care
- Getting plain-language explanations of health topics, lab results, or medications
- Building daily health plans and habits
- Managing your health routine hands-free via voice
- Getting a safety-first response — with emergency guidance surfaced — when you describe something potentially serious
- Companionship and daily check-ins around your health and wellbeing