RingConn Ring sizes are different from regular ring sizes, so purchase the ’Don't know my size' option to get the perfect size.
Find Your Perfect Size
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Wearing Guide
The RingConn Smart Ring fits all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing it on your index finger. You can also try it on your middle finger for comfort.
When wearing the ring, position the ring tracker (sensor side) against the pad of your index or middle finger. This ensures the ring is oriented correctly for accurate sizing and optimal sensor contact.
Your fingers naturally expand and shrink throughout the day due to temperature, activity, and sleep. To find your most accurate fit, wear the ring sizer for at least 24 hours, including during sleep.
A well-fitting ring should feel comfortable and stay securely in place without rotating during your daily activities.
The RingConn Smart Ring fits all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing it on your index finger. You can also try it on your middle finger for comfort.
When wearing the ring, position the ring tracker (sensor side) against the pad of your index or middle finger. This ensures the ring is oriented correctly for accurate sizing and optimal sensor contact.
Your fingers naturally expand and shrink throughout the day due to temperature, activity, and sleep. To find your most accurate fit, wear the ring sizer for at least 24 hours, including during sleep.
A well-fitting ring should feel comfortable and stay securely in place without rotating during your daily activities.
RingConn Size Chart
To find the ideal fit for your smart ring, refer to the table below to match your finger’s inner diameter or circumference with the appropriate RingConn size. For the best accuracy and comfort, we suggest using our dedicated smart ring sizing kits. Choosing the right size helps ensure your RingConn smart ring provides accurate biometric data, consistent performance, and comfortable wear throughout the day.
FAQ
Can I use a 3D printer instead of ordering the Sizing Kit?
Can I use a 3D printer instead of ordering the Sizing Kit?
Yes. If you have access to a 3D printer, you can download our sizing ring STL file and print your own. Just make sure to print at 100% scale for accurate sizing.
What if I'm between two sizes?
What if I'm between two sizes?
We recommend choosing the smaller size in between to get more accurate measurements.
Can I borrow a Sizing Kit from someone else?
Can I borrow a Sizing Kit from someone else?
Yes! If someone you know has a RingConn Sizing Kit, you can use it to find your correct size.
Gen 2 and Gen 2 Air share the same sizing kit and can use the same measurements. For Gen 3, we strongly recommend using a Gen 3 Sizing Kit for the most accurate fit, as sizing may differ from previous generations.
Once you’ve confirmed your size, you can go straight to our website and place your order with the correct size selected—no need to go through the sizing confirmation process.
Can I wear the ring on any finger?
Can I wear the ring on any finger?
Yes, the RingConn Ring fits all fingers and can be worn on either hand. For best accuracy, we recommend the index finger.
Should I test my size at different times of the day?
Should I test my size at different times of the day?
Yes—we strongly recommend it.
Your fingers may swell or shrink depending on:
- Morning vs. evening
- Exercise or physical activity
- Hot or cold weather
- Hydration, meals, or sleep
For the most accurate fit, wear your sizing ring for at least 24 hours, including sleep and normal daily activities.
Why does the actual ring feel slightly different from the sizing kit?
Why does the actual ring feel slightly different from the sizing kit?
That’s normal.
The sizing kit is made from plastic, while the actual RingConn ring has a smoother inner surface, so it may slide on and off a little more easily—even if the size is the same.
That’s why your sizing ring should feel secure and slightly snug, rather than loose during testing.
Is it okay if the sizing ring leaves light marks?
Is it okay if the sizing ring leaves light marks?
Yes—light marks can be normal, especially after sleep or when your fingers naturally swell.
However, your sizing ring should never feel painful, restrict circulation, or be difficult to remove. If it does, try the next size up.
How do I submit my size after trying the Sizing Kit?
How do I submit my size after trying the Sizing Kit?
It depends on how you got your sizing kit:
If you ordered a Ring with "Unknown Size" on our website:
1. Go to ringconn.com and log in or register an account using the same email you used for your order.
2. Navigate to My Orders in your account dashboard.
3. Open your order details and submit your ring size directly there.
If you used a 3D printed sizer or borrowed a Sizing Kit from someone else:
Once you’ve confirmed your size, you can simply go to our website and place your Ring order with the correct size selected—no extra steps needed.