Circul Smart Ring-Automatically Adjustable Wearable Ring for Men & Women, No App Subscription, Fitness Ring for Sleep Tracking - Fitness Tracker by Circul - Used condition

Circul Smart Ring-Automatically Adjustable Wearable Ring for Men & Women, No App Subscription, Fitness Ring for Sleep Tracking - Fitness Tracker — Open-Box

Name: Circul Smart Ring-Automatically Adjustable Wearable Ring for Men & Women, No App Subscription, Fitness Ring for Sleep Tracking - Fitness Tracker
Brand: Circul
SKU: awhd-us-b0ggz9b924
Price: 142.71 USD
Availability: InStock

Brand: Circul

Condition: Used

$142⁷¹

Updated: 3 days ago

Buy at Amazon.com

Description

Adaptive-Fit Design: Revolutionary technology automatically adjusts to finger size changes throughout the day. Perfect skin contact ensures accurate readings while maintaining comfort. Fits multiple fingers without sizing kits.

Advanced Sleep Monitoring: Tracks your sleep patterns and oxygen levels throughout the night, providing insights to help you understand your sleep better.

Real - time SpO2 Tracking: Continuously monitors your blood oxygen levels in real - time, keeping you informed of your body's oxygen status. Monitors heart rate, HRV, SpO2, activity, stress, and temperature. OTA updates ensure latest features, while the app provides trend analysis and personalized insights.

No Subscriptions, Extended Battery: One-time purchase unlocks all features permanently. 4 - 7 day battery life with 120+ additional hours from portable charging case. iOS/Android compatible with Apple Health sync. 5 ATM waterproof.

Professional Fitness Tracking: Accuracy rivals chest straps with multiple sport modes, real-time monitoring, and customizable goals to optimize training effectiveness.

CIRCUL Smart Ring-Adjustable Wearable Ring for Men & Women, blood oxygen & blood pressure ring,No App Subscription, Fitness Ring for Sleep Tracking - Heart Rate - Fitness Tracker

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-b0ggz9b924
Country:: US
ASIN:: B0GGZ9B924

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 Circul 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.