The smart ring health tracker monitors sleep, recovery and a wide range of daily biometrics. Comfortable enough for continuous wear and offering cycle and pregnancy insights, ULTRAHUMAN Ring AIR helps people feel more in control of their wellbeing. Is the certified renewed condition and the required sizing process right for your priorities?
⚡ At a Glance
- • Wearing Comfort: Lightweight design supports 24/7 wear and comes in sizes 5-14 with a recommended sizing kit
- • Best for: Health-conscious sleepers, athletes tracking recovery and people monitoring fertility and cycles
- • Not ideal for: Buyers seeking guaranteed identical cosmetic finish or those who avoid renewed-condition items
Certified renewed units undergo professional inspection and testing and include a one-year manufacturer warranty. Comprehensive tracking covers sleep, activity, stress, heart health, movement, workouts and recovery.
All-day comfort and secure fit - with a recommended sizing kit and ten size options
Sizes range from 5 to 14 and Ultrahuman recommends buying the sizing kit first to determine the correct fit. Accurate sizing reduces slippage during sleep and workouts.
A correct fit supports 24/7 wear and reduces the chance of returns, making round-the-clock monitoring practical and comfortable.
Detailed sleep and recovery insights - with multi-metric health tracking
Measures a wide range of metrics including sleep, activity, stress, heart health, movement, workouts and recovery to build daily and longer-term trends. Professional inspection ensures renewed units meet Ultrahuman performance standards.
Actionable recovery and sleep data help plan training load and rest, so users can refine routines based on measurable trends.
Women's health and fertility tracking - with multi-biomarker-based predictions and pregnancy mode
Multi-biomarker-based tracking predicts a seven-day fertile window, aims to pinpoint ovulation and offers cycle phase insights. Pregnancy Mode supplies trimester-specific guidance.
Practical for those trying to conceive or tracking cycle phases, with personalised guidance that aligns daily habits to each cycle phase.
✨ The 4 Key Reasons for ULTRAHUMAN Ring AIR
Long battery life - Long-lasting battery reported by users, reducing charging frequency
- Easy setup - Simple onboarding completed through the Ultrahuman app, per users
- Personalised cycle insights - Predicts fertile window and pinpoints ovulation timing for conception support
- Unique renewed finish - Each unit may show individual visual differences from manufacturing
📋 Technical Details at a Glance
- Category: Wearable health tracker
- Brand: ULTRAHUMAN
- Model: Ring AIR
- Product ID: B0D7956WT1
- Condition: Certified Renewed by Ultrahuman
❓ Frequently Asked Questions
Q: Do I need the sizing kit before buying?
A: Yes. Ultrahuman recommends purchasing the sizing kit first because Ring AIR sizes differ from standard ring sizes and the kit helps ensure an accurate fit.
Q: What does Certified Renewed mean for condition and support?
A: Certified Renewed units undergo professional inspection and testing to meet Ultrahuman performance standards and come with a one-year manufacturer warranty.
Q: Can it track fertility and pregnancy?
A: Yes. Multi-biomarker-based tracking predicts a seven-day fertile window, aims to pinpoint ovulation and includes a Pregnancy Mode for trimester-specific insights.
🏆 Our Verdict
Ideal for health-conscious sleepers, athletes focusing on recovery and people tracking fertility or pregnancy. Certified renewed condition combined with multi-biomarker tracking and a dedicated sizing process delivers continuous, personalised health insights. Long-term value suits anyone wanting ongoing trends and reassurance from a one-year warranty and app-based support.
