COLMI R02 Smart Ring, Smart Ring for Women and Men, with a Charging Case, Supports Heart Rate, Blood Oxygen, Sleep Health Monitoring, No Subscription Fee. (Rose Gold, 10#)

Name: COLMI R02 Smart Ring, Smart Ring for Women and Men, with a Charging Case, Supports Heart Rate, Blood Oxygen, Sleep Health Monitoring, No Subscription Fee. (Rose Gold, 10#)
Brand: COLMI
SKU: awhd-us-b0fksld31t
Price: 53.18 USD
Availability: InStock

Brand: COLMI

Condition: Used

$53¹⁸

$55⁹⁸

-5% Save $2⁸⁰

Updated: 4 days ago

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Description

Purchase a Sizing Kit: Before purchasing the COLMI R02 smart ring, we strongly recommend that you purchase the COLMI sizing kit or measure your finger size according to the size chart to help you choose the correct ring size for a comfortable fit and to avoid unnecessary returns or exchanges

No App Subscription Fee Required: Say goodbye to monthly bills! The COLMI smart ring requires no app subscription fee. Enjoy all features right out of the box, instantly unlocking core data such as heart rate monitoring, sleep analysis, and 24/7 activity tracking, making health management pure and simple

Heart Rate Measurement: 24/7 smart heart rate measurement allows you to understand your heart rate status and monitor heart rate abnormalities, keeping track of your daily health

Battery Life: Your usage frequency determines your power consumption. Basic Mode (4-5 days): Tracks only steps and basic sleep. Balanced Mode (3-4 days): Synchronizes heart rate every 60 minutes. Enhanced Mode (2-3 days): Monitors heart rate in real-time throughout the day. Requires frequent daily charging

Portable Charging Case: Includes a compact charging case for charging anytime, anywhere, without worrying about running out of power

Nighttime Sleep Insights: Tracks continuous night rest for holistic wellness trends. Note: Algorithm is strictly calibrated for nighttime cycles to ensure data purity

Daily Health Tracking: Tracks long-term activity trends through natural arm swings. The algorithm filters out stationary hand movements to prevent data errors, supporting holistic health and lifestyle goals

Photo Control: Remote camera control allows you to control your phone's camera with a flick of a finger, making selfies, group photos, and creative photography more convenient

Complete Package Included: Comes with 1 smart ring, 1 portable charging case, 1 charging cable, and 1 instruction manual for your convenience

The COLMI R02 smart ring supports multiple functions, including measuring heart rate, blood oxygen, sleep, etc., recording exercise data, controlling mobile phones to take photos, and comes with a charging case, making travel more convenient. A stylish smart ring for women. Smart health rings for women. Available in black, silver, rose gold, and gold smart ring. It is recommended to select a smart ring sizing kit before purchasing to avoid size issues.

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Product Details

SKU:: awhd-us-b0fksld31t
Model:: COLMI R02
Country:: US
ASIN:: B0FKSLD31T

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 $3 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 COLMI 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.