femometer Ring Air | Ultra-Thin Smart Ring | Sleep/Heart Rate/SpO2/Stress | Women's Health & Fertility Tracker with BBT Technology | Hot Flash Monitoring | Free Subscription - Size12 — Open-Box, 46% Off

Name: femometer Ring Air | Ultra-Thin Smart Ring | Sleep/Heart Rate/SpO2/Stress | Women's Health & Fertility Tracker with BBT Technology | Hot Flash Monitoring | Free Subscription - Size12
Brand: femometer
SKU: awhd-us-b0ggrjslyl
Price: 106.80 USD
Availability: InStock

Brand: femometer

Condition: Used - VeryGood

$106⁸⁰

$199⁰⁰

-46% Save $92²⁰

Updated: 3 days ago

Buy at Amazon.com

Description

Extremely Lightweight, Worn with Ease - Femometer Ring Air is only 3.3g Weight and 7mm wide. The nano-level PVD coating process, more durable & wear-resistant, while the skin-friendly epoxy resin inner ring ensures comfort all day long. Light yet durable, it combines beauty with practicality.

Exclusive Technology, Precision Monitoring - Femometer Ring Air features the industry's first triple-temperature sensors, combined with integrated PPG and a 3-axis accelerator, it accurately tracks BBT, heart rate, blood oxygen, sleep, stress, etc. Beyond monitoring, it provides valuable insights such as menstrual cycle analysis, ovulation prediction, and exclusive hot flash detection.

Intelligent Core, Professional Care - The new chip delivers a smaller size and stronger performance. With 3x more memory, doubled data transmission speed. Offering you more professional health insights in a lighter way.

Long Battery Life & Daily Use - Up to 30-day battery life with quick charging dock (stores 5 full charges), it supports all-day wear. Magnetic charging and IP68 waterproof rating make it ideal for daily use.

No Subscription Fees - All health data is stored and analyzed through the dedicated Femometer App at no cost—no subscription fees required. From menstrual cycle management to early health awareness, femometer remains dedicated to women's health throughout every life stage.

Femometer Ring AIR: Lightweight Design, Professional Care for Women Weighing only 3.2 grams and measuring just 7mm wide, the AIR ring is one of the lightest and thinnest smart rings available. Its ergonomic shape and smooth finish ensure a comfortable, secure fit around the clock. The outer ring is crafted from stainless steel with a nano-PVD coating, offering exceptional scratch resistance and a subtle shine. Inside, a medical-grade epoxy resin inner ring provides hypoallergenic comfort, even during workouts or daily activities.

Buy at Amazon.com

Sold by

Amazon Warehouse

Verified Retailer

Official Amazon outlet for open-box & returned items

Backed by Amazon's A-to-Z Guarantee
30-day return policy
Ships from Amazon fulfillment centers
Price verified on Amazon

Product Details

SKU:: awhd-us-b0ggrjslyl
Country:: US
ASIN:: B0GGRJSLYL
UPC:: 810115238058

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $92 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

Why use OpenBoxFox?

Finding refurbished deals is time-consuming — you'd have to check Amazon Warehouse, Reebelo, Dyson Outlet, and others separately for femometer products. OpenBoxFox aggregates these listings in one place, so you can compare and find the best deal without the legwork. We update pricing daily so you always see current availability and real savings.

Is it safe to buy refurbished?

Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.