Ultrahuman Ring AIR Sleep Tracker HRV Temp 6 Day Battery Size 8

Key Features

• Brand: Ultrahuman
• Product: Ring AIR sleep tracking wearable
• Vitals Tracked: heart rate, HRV, skin temperature, movement, sleep stages
• Battery: up to 6 days on a single charge
• Water Resistance: 100 m
• Connectivity: wireless charging
• Size: Size 8 (reference sizing info available for accuracy)
• Extra Insights: circadian phase alignment, stimulant window recommendations, workout mode

Specifications

• Model: Ultrahuman Ring AIR
• Band Material: titanium inner shell
• Languages: app available in multiple languages
• Subscription: Lifetime free subscription included

What It Tracks

• Sleep Index: Deep, REM, Light sleep, and awake periods
• Movement Index: steps, calories, METs, activity insights
• Recovery Score: derived from HRV, HR, and skin temperature signals
• Workout Mode: tracks heart rate during workouts for cardiovascular insights
• Stimulant Window: guidance on caffeine timing for productivity

The Ultrahuman Ring AIR provides comprehensive sleep, recovery, and activity insights with a compact, water resistant design and long battery life. Ensure correct sizing using available sizing options for an optimal fit.