ULTRAHUMAN Ring Air Smart Ring Aster Black Size 6 - Sleep & Fitness Tracker with Heart Rate, SpO2, Skin Temperature, Titanium, 6-Day Battery UHRA-AA-06-EUL7

Weighing just 2.4 g and crafted from titanium, the ULTRAHUMAN Ring Air delivers up to 6 days of battery life in a sleek, water-resistant form. This smart ring tracks sleep, fitness, heart rate, SpO2, and skin temperature, syncing via Bluetooth Low Energy to the Ultrahuman app.

Overview

The ULTRAHUMAN Ring Air is a discreet wearable for men and women. It monitors key health metrics around the clock, providing insights into sleep quality, activity, stress, and recovery. With a 10 ATM water resistance rating, it withstands daily wear, including swimming.

What stands out

• Ultra-lightweight titanium shell with medical-grade resin inner lining
• Comprehensive tracking: sleep stages, heart rate, SpO2, skin temperature, stress, and recovery
• Up to 6 days of battery life on a single charge
• Magnetic charging dock for easy recharging
• No subscription required; data stored on-device for up to 7 days

Technical details

• Material: Titanium outer shell, medical-grade resin inner lining
• Weight: 2.4 g
• Ring size: US 6 (inner diameter 16.51 mm)
• Band width: 2.8 mm; thickness: 2.4 mm
• Connectivity: Bluetooth Low Energy (BLE)
• Battery life: Up to 6 days
• Water resistance: 10 ATM (up to 100 m)
• Compatibility: iOS 15.0+ and Android 8.0+
• Charging method: Magnetic charging dock

Our verdict

A feature-rich smart ring that combines advanced health tracking with a durable, minimalist design. Ideal for those seeking a lightweight alternative to wrist-worn wearables.