Femometer Ring Air & A Free Sizing Kit
$209.99

We recommend ordering our free size kit.

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Unique Benefits

✓ Lightweight and thin, enhanced wearability

✓ Vibrant metal outer

✓ No app subscription fee


✓ Precise Health Tracking

  • Sleep
  • Heart rate (HR)
  • Heart rate variability (HRV)
  • Blood oxygen
  • Basal body temperature (BBT)
  • Period and ovulation
  • Hot flashes
  • Activities
  • Stress
How to Use
Quality Warranty
Is It Right for Me
What's Included
Technical Details
  • Sleep
  • Women's Health
  • Activities and Stress
  • Heart Health
  • Hot Flush

Sleep Stages

Femometer Ring Air monitors light sleep, deep sleep, rapid eye movement (REM), and awake periods, offering comprehensive insights into your sleep patterns.

Sleep Quality

It allows you to have a deep understanding of sleep quality and you can cultivate healthy sleep habits for a restful night's sleep by utilizing this sleep data and guidance.

Blood Oxygen

Identify your risk of breathing disturbances by monitoring your blood oxygen levels while you sleep.

THIRD-PARTY TESTED

Light as Air, Effortlessly Smart

Crafted for unparalleled comfort, the ring easily integrates into your daily routine. With a lightweight construction and snug fit are so discreet that you'll hardly notice it's on. It's perfect for workouts, sleep, and everyday tasks.

3.3g

Weight*

-15% compared with Gen2

7mm

Width

-12.5% compared with Gen2

2.65mm

Thickness*

-1.9% compared with Gen2

Weight: 3.3-4g, depending on size. Thickness: (Size 6) 2.85mm, (Size 7-13) 2.65mm

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

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