Smart ring activity tracker Ultrahuman Ring Air Size 07 — Gold, 6-day battery, 8.1 mm width

The Ultrahuman Ring Air Size 07 — Gold is a compact smart ring activity tracker designed for continuous wearable monitoring in a discreet round form factor. Finished in gold and measuring 8.1 mm in width, this lightweight ring weighs approximately 2.4 g and houses a 24 mAh LiPo battery that provides up to 6 days of use per charge. The device supports Android and iOS 15 and ships with a USB‑C to USB‑C cable for charging. Core tracking features include activity, sleep and basic health monitoring with sensors for heart rate, skin temperature and movement-based metrics, along with calculated indices such as Sleep Index, Movement Index and HRV-derived recovery insights.

Advantages

The ring’s ultra-slim 8.1 mm profile and 2.4 g weight make it unobtrusive for all-day and overnight wear, reducing interference with daily tasks and sleep. A 24 mAh LiPo battery delivers up to 6 days of continuous operation, minimising charging frequency. Compatibility with Android and iOS 15 enables seamless syncing and access to app-based insights, while the included USB‑C to USB‑C cable simplifies charging. Built-in monitoring of skin temperature, heart rate and movement supports consolidated sleep, activity and recovery metrics for straightforward interpretation.

Suitable for

• Everyday activity tracking and step monitoring
• Overnight sleep monitoring and sleep quality assessment
• Continuous heart rate and HRV-based recovery tracking
• Skin temperature trend monitoring for physiological changes
• Users seeking a discreet, lightweight wearable alternative to a smartwatch

Key specifications

• Form factor: round smart ring, 8.1 mm width
• Weight: approximately 2.4 g
• Battery: 24 mAh LiPo, up to 6 days of use per charge
• Compatibility: Android and iOS 15
• Charging: USB‑C to USB‑C cable included
• Primary sensors and metrics: heart rate, skin temperature, motion sensing, sleep index, movement index, HRV insights

How to use

Wear the Ultrahuman Ring Air on the finger for consistent sensor contact and round-the-clock monitoring. Pair the ring with the Ultrahuman app on a compatible Android or iOS 15 device to enable data sync, view sleep and activity reports, and receive personalised nudges. Charge the ring using the supplied USB‑C to USB‑C cable when the app indicates low battery; typical use cycles can reach up to six days between charges. For accurate sleep and temperature tracking, wear the ring overnight and keep it fitted comfortably but not overly tight.

Usage recommendations

For best results, ensure consistent wearing position and regular app syncs. Wear the ring continuously for several nights to establish baseline sleep and temperature patterns, and follow app prompts for personalised nudges and recovery guidance based on heart rate variability and movement metrics.