Ultrahuman Ring AIR Aster Black Size 12 Smart Ring Sleep Tracking

Key Features

• Brand: Ultrahuman
• Product: Ring AIR
• Model/Color: Aster Black
• Size: 12 (sizing kit recommended for accuracy)
• Subscription: No monthly subscription required
• Health Tracking: Sleep stages, activity, stress, heart rate, heart rate variability, skin temperature, recovery, and more
• Women’s Health: Ovulation and cycle tracking with pregnancy insights
• App: All features accessible in Ultrahuman App without subscription

Sizing

• First purchase Ultrahuman Sizing Kit to determine accurate size. Ring AIR is available in 10 sizes (5–14).
• Sizing kit helps prevent returns by ensuring right fit before purchase.

Technical Specifications

• Metrics: Sleep, activity, stress, heart rate, HRV, skin temperature, movement, recovery
• Sleep Tracking: Detailed sleep stages including REM, Deep Sleep, Light Sleep, Wakefulness
• Insights: Actionable nudges and daily guidance for rest and performance

Note: This listing reflects the Ultrahuman Ring AIR in the specified size and color. Features described pertain to product capabilities as provided by the manufacturer.