MUNBYN Smart Ring for Women and Men, Fitness Tracker with Sleep Tracking, Heart Rate, Blood Oxygen, Health Reports, Step Counter, 5ATM Waterproof, Compatible with iOS & Android, Rose Gold 8 — Open-Box

Name: MUNBYN Smart Ring for Women and Men, Fitness Tracker with Sleep Tracking, Heart Rate, Blood Oxygen, Health Reports, Step Counter, 5ATM Waterproof, Compatible with iOS & Android, Rose Gold 8
Brand: MUNBYN
SKU: awhd-us-b0ffm86fgy
Price: 20.86 USD
Availability: InStock

Brand: MUNBYN

Condition: Used

$20⁸⁶

Updated: 5 hours 10 mins ago

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Description

Size Before You Buy: Check your size with sizing chart or buy MUNBYN sizing kit before purchasing the Smart Ring to ensure a precise and comfortable fit, as our sizing standard is different due to built-in sensors

Monitor Your Health & Sleep: Wear this health ring to improve your life with daily/weekly/monthly sleep trend reports and analysis of heart rate, sleep stages, activity, and personalized wellness recommendations

4-in-1 Mental Health Tracker: Monitors your mood, stress, fatigue level, and emotion, enabling you to understand your mental health status clearly and make timely adjustments

Advanced Health Tracking: Precisely tracking heart rate and blood oxygen every 30 minutes, this fitness ring also predicts menstrual cycles without cloud data upload and provides instant health reports on steps, calories, distance, and heart rate

Wear All Day & Night: Ultra-thin, stylish 2 mm smart ring offers all around comfort and convenience in activities like sleeping, jogging, working, excercising, with a durable and waterproof design (IP68/5ATM)

smart ring

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Product Details

SKU:: awhd-us-b0ffm86fgy
Model:: 06976874155310
Country:: US
ASIN:: B0FFM86FGY
GTIN:: 06976874155310

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. 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 MUNBYN 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.