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RingConn

RingConn Gen 2 Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Find The Perfect Ring Size Smart Ring Size

  • Based on 2,746 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Apr 25
Order within 17 hours and 42 minutes
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Color: Sizing Kit


Size: 6-14


Features

  • [Not Standard Sizing] RingConn Smart Ring differs from standard rings as it contains sensors on the inside. Therefore, we recommend using the RingConn Sizing Kit to determine the best fit. The RingConn Smart Ring is available in sizes 6 to 14, accommodating various finger sizes
  • [How to Measure & Fit Check] Wear the sizing gauge snugly around the base of your finger, ensuring it doesnt rotate freely. We recommend wearing it for over 24 hours to determine your most accurate fit. For optimal data and comfort, the RingConn Smart Ring should fit snugly against your skin without rotating. When testing for the best size, make sure the sizing gauge remains tight around the base of your finger
  • [Choose a Finger] The RingConn Smart Ring can be worn on any finger and on either hand. For optimal accuracy and comfort, we recommend wearing the RingConn Smart Ring on your index, middle, or ring finger. Be sure to size the exact finger on which you plan to wear your RingConn Smart Ring for the best fit
  • [Manufacturing Quality] RingConn Sizing Kit is made from premium-grade plastic, while the RingConn Smart Ring is crafted from aerospace-grade titanium, coated with a scratch-resistant layer for outstanding corrosion resistance and durability

Operating System: RingConn Smart Ring


Special Feature: Activity Tracker, Heart Rate Monitor


Connectivity Technology: Bluetooth


Wireless Communication Standard: Bluetooth


GPS: No GPS


Shape: Round


Brand: RingConn


Model Name: RingConn Gen 2 Sizing Kit


Color: Sizing Kit


Target Audience: Unisex Adults


Operating System: RingConn Smart Ring


Additional Features: Activity Tracker, Heart Rate Monitor


GPS Geotagging Functionality: No GPS


Band Material Type: Plastic


Case Material Type: Plastic


Water Resistance Level: Water Resistant


Human Interface Input: Buttons


Metrics Measured: Heart Rate, Blood Oxygen Monitor


Shape: Round


Color: Sizing Kit


Connectivity Technology: Bluetooth


Wireless Compability: Bluetooth


Wireless Provider: Unlocked


Communication Feature: Bluetooth


Item Dimensions: 9.52 x 4.17 x 1.02 inches


Warranty Type: Limited


Brand: RingConn


Model Name: RingConn Gen 2 Sizing Kit


Target Audience: Unisex Adults


Age Range Description: Adult


Model Number: SKR-02


Built-In Media: Instruction Manual, RingConn Sizing Kit


Wearable Computer Type: Smart Ring


UPC: 810180160926


Manufacturer: Guangdong Jiu Zhi Technology Co., Ltd.


Display Type: No Display


Compatible Devices: RingConn Gen 2 Smart Ring


Compatible Phone Models: Compatible with iOS and Android devices


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Apr 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Super Helpful and Accurate Sizing Kit
This RingConn sizing kit made the whole process so much easier. The set includes all the sizes from 6 to 14, and each ring is clearly labeled and comfortable enough to wear around for a day to test the fit. I really appreciated being able to try multiple sizes before ordering the actual ring—it took all the guesswork out of it. The kit is simple, accurate, and exactly what you need to make sure you get the perfect fit the first time. Definitely worth it. ... show more
Reviewed in the United States on January 6, 2026 by Mike Howell
    • Cheap, just buy it
For the price it is a good idea to just buy this sizing kit. That said you could just measure your fingers and use an online tool to find the ring size. Also an alternative if you have a 3D printer, RingCon supplies the necessary files to print sizers.
Reviewed in the United States on April 12, 2026 by Wingo
    • Great first step into buying a smart ring
Works like it should for a sizing kit. Able to size every finger with ease.
Reviewed in the United States on April 6, 2026 by Mike C.
    • Worth fitting first!
Definitely take the time to use the sizing kit. You aren't sizing a normal ring. You want to correctly size this ring because of the multiple sensors. A normal ring (that doesn't have a mount or stone), can spin on your hand and you don't know it. You want this ring to fit well enough that the sensors don't spin from the palm side of your finger. The ring kit allows you to try several sizes, over a day or so, to get exactly what will work best for you, including being in water, or wearing gloves. I actually kept wearing mine after I did order my ringconn, so it would help my finger (and brain) adjust to wearing a ring. I felt like the ring actually is smoother than the ring fitting kit. 👍 ... show more
Reviewed in the United States on March 13, 2026 by Dave Chesson
    • Sizing kit fits a tad more snug than actual ring conn
I thought the size 10 size in the sizing kit fit a little more snug than the actual ring conn 2 size 10 however when I received my ring conn 2 it fits it's just a tad bigger than the sizing ring. I think it's due to the different material from the sizing kit vs the actual ring size
Reviewed in the United States on December 31, 2025 by Ashley McLean
    • Worth the time
Worth the time and money to get the right size and feel of ring.
Reviewed in the United States on April 4, 2026 by Katie McIntyre
    • Great idea
Cheap and convenient way to ensure a proper fit for the real ring.
Reviewed in the United States on April 16, 2026 by Don Juan
    • Fit well
It was good to confirm my size.
Reviewed in the United States on April 7, 2026 by Shoprdh

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