• Smart Ring sizes are unique, and different from standard UK ring sizes. We strongly recommend that before you buy an Ultrahuman Air Smart Ring, that you buy an Ultrahuman sizing kit so you can be sure that the size ring you choose will be comfortable and give you the best tracking information.
  You can find the kit using the search option or typing the 4076638 into the search bar. They're available to be ordered to collect from all Argos collection points at your convenience. The kit costs £10, but there will be a voucher in the box to claim the cost off the price of the ring when you buy it.

Ultrahuman Ring AIR is the perfect sleep tracker ring. Along with insights on all your sleep stages — REM, Deep Sleep, Light Sleep and Wakefulness, get actionable steps to improve sleep so you're ready for the day. The 'Movement Index' is designed to keep you moving all day for optimum glucose metabolism, and to increase your non-exercise energy usage through the day.

Meticulously designed for enhanced comfort, this sleek device combines minimal form factor with precise performance, enabling users to effortlessly monitor key health indicators such as Sleep, Movement, Heart Rate (HR), Heart Rate Variability (HRV), and skin temperature.

This all-in-one activity and fitness tracker, you can track steps, workouts and calories for insights into your all-day activity. All features work together seamlessly, to make sure you get the most out of the smart ring. Workout Tracking is easy, with a dedicated Workout Mode that tracks Heart Rate.

A game changing perspective on stress, it considers the variations in your Heart Rate (HR), Heart Rate Variability (HRV), and Resting Heart Rate (RHR) against the backdrop of your circadian rhythm.

Connectivity

• Compatible with iPhones running iOS 15 or later and Android devices running Android 6 or later.
• iOS operating system.
• Bluetooth 5 connection.

Battery

• 24mAh battery capacity.
• Typical usage time of up to 5 days.
• Low usage time of up to 6 days.
• 1.5 hour charge.
• Replaceable battery.

Physical specification

• Size: 14.
• Weight 2.4g.

Features

• Water resistant.
• Swimproof.
• Dust resistant.
• Heart rate monitor.
• Sleep.

General information

• Accessories included: Type C to Type C Cable, Wireless Charging Dock, Ultrahuman Ring AIR, including charger.
• Manufacturer's 1 year guarantee.

• EAN: 8908023166845.