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Description
Oxygen Monitoring and Tracking
The Wellue O2Ring Oxygen Monitor is designed for all-day monitoring of blood oxygen levels, pulse rate, and body motion. It can be used continuously for up to 16 hours, providing detailed insights into your oxygen saturation and heart rate. The device features a smart readings reminder that vibrates and marks low oxygen levels or abnormal heart rates in the report.
The O2Ring device is user-friendly and runs automatically when worn. It features a patented comfortable soft silicon sensor ring that is light and convenient, suitable for customers with a finger perimeter of 2.17-3.15 inches. The device is rechargeable, with a long battery life of up to 12-16 hours after a full charge.
The Wellue O2Ring Oxygen Monitor comes with a free APP and PC software that provides graphic O2 and PR reports, as well as trends of data. The APP is compatible with iOS 9.0 or above, iPhone 4s/iPad 3 or above, and Android 5.0 or above, with Bluetooth 4.0 BLE. The device stores four groups of 10-hour data, which can be uploaded automatically to the APP via Bluetooth.
- Continuous Recording: Up to 16 hours of continuous recording of SpO2 and PR
- Smart Readings Reminder: Vibration reminder for low oxygen levels or abnormal heart rates
- Detailed APP & PC Reports: Graphic O2 and PR reports, with trends of data and unlimited sharing of PDF and CSV reports
- Built-in Memory: Stores four groups of 10-hour data
- Rechargeable: Long battery life of up to 12-16 hours after a full charge
- Comfortable Design: Patented soft silicon sensor ring, suitable for finger perimeters of 2.17-3.15 inches
- Bluetooth Connectivity: Compatible with Bluetooth 4.0 BLE, for easy data transfer to the APP
Specifications
| Finger Perimeter | 2.17-3.15 inches |
| Continuous Recording Time | Up to 16 hours |
| Battery Life | Up to 12-16 hours |
| Compatibility | iOS 9.0 or above, iPhone 4s/iPad 3 or above, Android 5.0 or above, with Bluetooth 4.0 BLE |
Shipping
Shipping Policy
Last Updated: July 26, 2026
At Martmallow, operated by Capital Crew LLC, we are committed to delivering your order as quickly and efficiently as possible. Please review the information below regarding our shipping process.
Shipping Destination
We currently ship only within the United States. At this time, we do not offer international shipping.
Order Processing Time
All orders are processed after payment has been successfully verified.
Our estimated processing times are:
- Economy Shipping: 4–6 business days
- Standard Shipping: 3–4 business days
Business days are Monday through Friday, excluding U.S. federal holidays.
Orders placed on weekends or holidays will begin processing on the next business day.
Shipping Methods & Rates
We offer the following shipping options:
| Shipping Method | Processing Time | Estimated Delivery | Cost |
|---|---|---|---|
| Economy Shipping | 4–6 business days | 2–5 business days | $5.99 |
| Standard Shipping | 3–4 business days | 2–5 business days | $9.99 |
Estimated delivery times begin once your order has been shipped.
Order Confirmation
After placing your order, you will receive an order confirmation email. Once your order has been shipped, a shipping confirmation email containing tracking information will be sent to the email address provided during checkout.
Please allow up to 24 hours for tracking information to become active after receiving your shipping confirmation.
Shipping Delays
While we make every effort to deliver orders within the estimated timeframes, delays may occur due to circumstances beyond our control, including:
- Severe weather conditions
- High shipping volumes
- Carrier service disruptions
- Holidays
- Natural disasters
- Incorrect or incomplete shipping information provided by the customer
Delivery dates are estimates and are not guaranteed.
Incorrect Shipping Information
Customers are responsible for providing accurate shipping information at checkout.
If an incorrect or incomplete address is provided, your shipment may be delayed, returned, or undeliverable. Any additional shipping charges resulting from an incorrect address may be the customer's responsibility.
If you notice an error in your shipping address, please contact us as soon as possible. We will do our best to update your order before it is shipped.
Lost or Damaged Packages
If your package arrives damaged or appears to be lost in transit, please contact us promptly at support@martmallow.com.
To help us investigate the issue, please include:
- Your order number
- A description of the issue
- Photos of any damaged items or packaging (if applicable)
We will work with the shipping carrier to resolve the matter as quickly as possible and determine the appropriate resolution, which may include a replacement, refund, or other remedy where applicable.
Multiple Shipments
If your order contains multiple items, they may be shipped separately depending on inventory availability or warehouse location. You will receive tracking information for each shipment if this occurs.
Shipping Restrictions
Certain products may be subject to shipping restrictions based on size, weight, or applicable regulations. If a shipping restriction affects your order, we will contact you to discuss available options.
Order Changes and Cancellations
If you need to modify or cancel your order, please contact us within 12 hours of placing your order.
Once an order has entered processing or has been shipped, changes or cancellations may no longer be possible.
Contact Us
If you have any questions regarding our Shipping Policy, please contact us:
Capital Crew LLC
1001 S Main St
Kalispell, MT 59901
United States
Email: support@martmallow.com
Phone: +1 (406) 434-1996
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