Smart Ring Size Adjuster for Oura Ring Gen 4/3/Samsung Galaxy Ring/Ultra Human Ring AIR/RingConn 2/1, Invisible Accessories for Loose Ring Sizing Kit Fit
Condition: New
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- – 4-month term
- – No impact on credit
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- – Secure and straightforward checkout
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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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30-day returns
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Thursday, Nov 13
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Features
- Adjustable & Customizable Fit: Easily resize your smart ring for a perfect fit! Our transparent silicone stickers can be cut or layered to achieve your desired thickness, ensuring comfort all day. For best adhesion, clean your ring before applying.
- Skin-Friendly & Eco-Friendly: Made of high-quality, non-toxic silicone thats gentle on your skin and environmentally safe. Remove without residue or damage to your ring.
- Waterproof & Secure: Stay worry-free during workouts, handwashing, or rainy daysthese stickers stay firmly in place and wont peel off easily.
- 100-Piece Long-Lasting Supply: Each pack includes 100 stickers (approx. 2-year supply). If charging is affected, simply replace the stickerno hassle!
- Compatible Charging Solution: For uninterrupted charging, ensure no gap between the ring and sticker. Alternatively, shop our smaller-sized Oura Ring charger for a seamless fit. Avoid covering sensor areas.
Material: Silicone
Brand: WONJOY
Color: Transparent
UPC:
Manufacturer: WONJOY
Product Dimensions : 1.97 x 1.57 x 0.19 inches; 0.32 ounces
Item model number : 32
Date First Available : March 7, 2025
Manufacturer : WONJOY
Best Sellers Rank: #125,227 in Clothing, Shoes & Jewelry (See Top 100 in Clothing, Shoes & Jewelry) #40 in Ring Sizers
#40 in Ring Sizers:
Customer Reviews: 3.8 3.8 out of 5 stars 54 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, Nov 13
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.
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
Learn more about financing & leasing here.
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Top Amazon Reviews
This works great on my off brand ring. It was a bit of a challenge to apply because the strips are so small, and because I have bad eyesight and arthritis. I managed to get it on the ring tho. I applied the strip next to the charging spot, but not on the actual sensors. It seems to be a comfortable fit, and until they come out with half sizes for rings, these strips are the solution to the slightly large ring problem.
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Reviewed in the United States on July 17, 2025 by Becky
I bought these to help create a better fit for my Oura ring which was loose after losing weight. The helped my ring stay in place and didn't impact the stats the ring provides. While I was happy with the way my ring fit when using, there were a couple of challenges. They require a delicate hand to apply and I needed to remove them to successfully charge the ring. They also left some residue when removing.
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Reviewed in the United States on September 29, 2025 by Kim
Not exactly what I expected but they work. These are stickers that need to be removed each time I need to charge my ring. Need to reapply after charging again in order for this product to work. I have 3 stars because they work as described but not how expected. The stickers fit on the ring but not to be left as a permanent fit.
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Reviewed in the United States on September 24, 2025 by Asia
I lost weight and this fixed the ring for me
Reviewed in the United States on August 24, 2025 by Mary Ann Swan
The sticky strip works reasonably well for snugging up the Oura ring (I’ve lost 35 lb since I purchased it). I only used it for 1 day, and the strip was already “catching” and sticking to things as I would pull my ring on and off, so I expect chronic users will have to replace the spacer strip quite often. However, despite placing correctly (sensors are not covered), my ring will not charge. So therefore these are useless to me unless I want to waste my tracker ring to wear it just as a fashion accessory. Poor functionality. Hard to place correctly. Also, after having the strip in for less than 12 hours, there is a god-awful sticky mess inside my ring after removing the strip, which took me about 20 minutes of hard work to remove. I am ant even fathom how awful a mess the strip would leave if you left it stuck to your ring even longer. Yuck. Would NOT recommend.
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Reviewed in the United States on September 13, 2025 by MK
Works great! Easy to install and lasts a while! It helps with the fit of my ring and it doesn't even feel like anything is there!
Reviewed in the United States on June 11, 2025 by Alexis Puckett
While the product didn't work for me, the customer service for the company was great.
Reviewed in the United States on July 20, 2025 by Annette Donovan
Works exactly as expected!
Reviewed in the United States on October 8, 2025 by Ebony Chambers