Smart ring activity tracker Ultrahuman Ring Air Size 06 — Silver, round, 6-day battery, LiPo 24 mAh

The Ultrahuman Ring Air Size 06 in Silver is a compact smart ring activity tracker designed for continuous, comfortable wear. With a lightweight round form factor and a low-profile 2.4 mm bezel, this ring monitors daily activity, sleep and recovery metrics while syncing with Android and iOS 15 devices. Powered by a 24 mAh LiPo battery, the device offers up to 6 days of runtime on a single charge, enabling multi-day monitoring without frequent recharging. The ring is intended to provide discreet, all-day physiological insights including heart rate, movement and skin temperature trends through companion app analysis.

Advantages

The Ultrahuman Ring Air combines a minimalist silver design with a lightweight build to minimize interference with daily activities and sleep. Its multi-day battery life reduces charging interruptions and supports continuous tracking of activity and recovery metrics. Built-in sensors provide sleep indices, heart rate and skin temperature data that feed into consolidated insights for sleep quality, movement and recovery without bulky wristwear.

Suitable for

• Everyday activity and step tracking
• Sleep monitoring and sleep quality assessment
• Recovery tracking using heart rate variability and resting heart rate
• Users who prefer a discreet, lightweight wearable over a smartwatch

Key specifications

• Form factor: round silver smart ring
• Compatibility: Android and iOS 15
• Battery type and capacity: Lithium Polymer (LiPo), 24 mAh
• Battery life: up to 6 days per charge
• Primary sensors and metrics: heart rate monitoring, movement tracking (activity and steps), sleep metrics, skin temperature tracking, HRV-based recovery insights
• Design attributes: ultra-lightweight (approx. 2.4 g), low-profile thickness (approx. 2.4 mm)
• Connectivity: Bluetooth for smartphone syncing

How to use

Wear the Ultrahuman Ring Air on the finger for continuous monitoring; ensure the ring fits snugly to maintain consistent sensor contact with the skin. Pair the ring with a compatible Android or iOS 15 device via Bluetooth and complete initial setup in the Ultrahuman companion app. Use the app to view sleep index, movement index, temperature trends and HRV-based recovery insights. Charge the ring as needed using the supplied charger and follow on-screen app prompts for firmware updates and calibration recommendations.

Usage recommendations

For reliable readings, wear the ring consistently day and night and keep it clean and dry. Ensure Bluetooth is enabled on your phone for uninterrupted data sync, and recharge the ring when battery levels are low to maintain continuous multi-day tracking.