The lighter way to understand your body
What's in the Box
- Femometer Ring Air
- Charging Dock
- USB-C cable
- User Manual & Quick Guide
- Gift Box
- App Access
Want to go deeper? MeetSoMind
*AI features require a paid subscription.
AI Health Analysis
Explore possible relationships across sleep, stress, activity and recovery.
Personalized Guidance
Receive wellness guidance informed by your baseline and changing body patterns.
AI Health Coach
Ask questions about your health trends and receive clearer, more actionable explanations.
Why choose Ring Air
Femometer Ring AirFemometer Ring Gen 1Others
Product
Designed forLighter, fully women’s
health trackingEssential cycle and
sleep insightsGeneral wellness tracking
health trackingEssential cycle and
sleep insightsGeneral wellness tracking
Cost
Monthly Subscription FeeFreeFreeVaries by brand
Price$199.99$139.99From $349
Features
Sleeping TrackingFour-stage SleepThree-stage SleepGeneral sleep stage tracking
Women Health TrackingCycle, Ovulation, BBT, Symptoms, Hot FlashesPeriod, Ovulation, BBTGeneral tracking
Daily WellnessHeart Rate, HRV, SpO2, stress, activityCore cycle, sleepVaries by model
AI Health CoachPersonalized AI insights and daily guidance with SoMindBasic insightsBasic insights
Form
Weight3.3g (Varies by size)3.8g (Varies by size)Varies by material
Water Resistance
FAQs
Tech Specifications
Material
- Outer ring: stainless steel treated with nano-level PVD vacuum plating.
- Inner side surface: epoxy resin, highly resistant to corrosion from sweat.
- Charging contact points: Silver-plated for corrosion resistance.
Weight & Thickness
- Width: 7mm.
- Thickness: (Size 6) 2.85mm, (Size 7-13) 2.65mm.
- Weight: 3.3g to 4.0g (depending on size)
Battery
- Up to 7 days of battery life on a single full charge.
- Full charge achieved in 90 mins.
Waterproof
- IP68 water resistant
Sensor
- New Generation nRF54L15 with smaller size, faster data transmission.
- Three temperature sensors track overnight skin-temperature trends.
- Single temperature measurement error ≤ ±0.1°C (between 30°C and 37°C) or ±0.18°F (between 86°F and 98.6°F), resolution 0.01.
- Incorporates PPG Sensors to monitor vital signs day and night.
- 3-Axis Accelerometer to oversee your activities and sleep in real time.
Compatibility
- Femometer App is available in English, French, German, Indonesian, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Turkish.
- SoMind is currently available in English.
- Supports metric and imperial units.
- Available on iOS and Android.
