Ultrahuman Ring AIR - Black Size 9 Smart Tracker with Sizing Kit

The Ultrahuman Ring Air is a lightweight smart ring designed for everyday wear and comprehensive health tracking. It supports a wide range of metrics and features to help you monitor sleep, activity, stress, heart health, and recovery, while also offering women’s health insights and cycle-related guidance. The ring comes in multiple sizes, with a sizing kit available to determine your correct fit before purchase, and a single app that provides all essential health data without a subscription. It is designed for comfortable all-day wear, integrates with iOS and Android devices via Bluetooth, and includes long battery life and easy wireless charging.

Key features

• Sleep tracking with stages and sleep debt insights
• Activity and recovery analytics including HRV and skin temperature
• Heart health monitoring with real-time data and AFib detection reminders
• Women’s health insights: ovulation, cycles, and pregnancy guidance
• Fertility window predictions and symptom pattern tracking
• Single app access without a subscription; Bluetooth sync to iOS/Android

Technical specifications

• Sizing kit recommended to determine correct ring size; Ring Air comes in 10 sizes (5–14)
• Ultra-light, durable titanium outer shell with carbon coating
• Water-resistant design for workouts and daily use
• Battery life up to 6 days; 90-minute wireless charging
• VO2 Max, steps, distance, calories tracking; customizable notifications
• PowerPlug monitors heart rhythm to help detect early signs of AFib; complies with European voltage standards