ULTRAHUMAN Ring Air Smart Ring, Size 14, Aster Black - Sleep & Fitness Tracker with Heart Rate, HRV, SpO2, Skin Temperature, 6-Day Battery, Titanium, Water Resistant UHRA-AA-14-EUL7

Track your sleep, activity, and recovery with the ULTRAHUMAN Ring Air, a lightweight smart ring that fits seamlessly into your daily routine. Whether you're at the office, in the gym, or asleep, this titanium ring continuously monitors key health metrics without a screen or constant charging. Its aerospace-grade titanium body with PVD coating is durable and comfortable for 24/7 wear, while the companion app provides actionable insights to optimize your performance and rest.

Key specifications

• Colour: Aster Black
• Ring size: US 14
• Material: Aerospace-grade titanium with PVD coating
• Water resistance: Up to 100 m (10 ATM)
• Battery life: Up to 6 days
• Charging time: 45–60 minutes
• Connectivity: Bluetooth Low Energy (BLE)
• Compatibility: iOS and Android
• Sensors: PPG heart rate, skin temperature, 3-axis accelerometer, SpO2
• On-device storage: Up to 7 days of data

Why choose it

The Ring Air goes beyond basic step counting. It tracks heart rate variability (HRV), blood oxygen (SpO2), skin temperature, and sleep stages to give you a complete picture of your health. The Ultrahuman app calculates your Movement Index, Sleep Index, Recovery Score, and Thermal Signature, helping you understand how your body responds to stress, exercise, and rest. With no subscription required, you get full access to your data and insights.

Ideal use cases

• Continuous sleep and recovery tracking without wearing a bulky watch
• Monitoring heart rate and HRV during workouts and daily activities
• Tracking skin temperature trends for early signs of strain or illness
• Long-term health tracking with 7-day on-device storage and 6-day battery

Good to know

The ring is water resistant up to 100 meters, making it safe for swimming and showering. It charges via a magnetic dock (included) and pairs with the Ultrahuman app for iOS and Android. The ring is available in multiple sizes; this listing is for US size 14.