Ultrahuman Ring AIR - Aster Black - Size 7

The Ultrahuman Ring AIR is a lightweight wearable designed for all-day wear with a titanium shell and carbon coating. It offers a sizing kit to determine the correct fit across 10 sizes (US 5–14) and provides comprehensive health and sleep insights. The ring supports women's health tracking, including cycle and ovulation insights and an option for Pregnancy Mode, all accessible through a single app with no subscription. It combines advanced sleep tracking with activity, stress, heart health, HRV, skin temperature, and recovery metrics to help you optimize performance and well-being throughout the day and night.

Features

• 10 ring sizes (US 5–14) with sizing kit for accurate fit
• Tracks sleep stages (REM, Deep, Light, Wake) and sleep debt
• Monitors activity, stress, heart health, HRV, skin temperature, and recovery
• Women’s health features: ovulation, cycles, pregnancy mode
• One app, no subscription required
• Movement Index and Workout Mode for active tracking

Technical specifications

• Materials: space-grade titanium, carbon-coated outer shell
• Ultra-light design for all-day wear
• Charge in 90 minutes; battery life up to 6 days
• VO2 Max, steps, distance, and calories tracking
• PowerPlug monitors heart rhythm for AFib indicators
• Dynamic Recovery Score updates in real time, including after naps/sauna