SKU: 93804761204

Oura Ring 4 Sizing Kit

Sale price$9.00 Regular price$10.00
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Oura Ring 4 Sizing KitKey Benefits The perfect way to find your ideal fit. Ensures a properly fitting Oura Ring 4 for maximum comfort, accuracy, and overall experience. Receive a 10 gift card once you've purchased your Oura Ring. The Oura Ring 4 Sizing Kit allows you to find the ideal size before purchasing an Oura Ring 4. It allows you to try multiple sizes, wear for 24 hours, and find your most comfortable fit. Oura Ring 4 sizes are slightly different from standard ring

Key Benefits

  • The perfect way to find your ideal fit.
  • Ensures a properly fitting Oura Ring 4 for maximum comfort, accuracy, and overall experience.
  • Receive a £10 gift card once you've purchased your Oura Ring.


The Oura Ring 4 Sizing Kit allows you to find the ideal size before purchasing an Oura Ring 4. It allows you to try multiple sizes, wear for 24 hours, and find your most comfortable fit. Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size. With a sizing kit purchase, you will receive a coupon code to use towards your Oura Ring 4 at checkout. 

NOT STANDARD SIZING — Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size yourself using our sizing kit and to follow the instructions provided. Oura Ring is available in sizes 6-13. There are no half sizes.

COMFORT AND ACCURACY — A properly fitting Oura Ring will result in the highest data accuracy, comfort, and overall experience.

CHOOSE A FINGER — Oura Ring 4 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring on your index finger, middle or ring finger.

HOW IT SHOULD FIT — Oura Ring 4 should fit securely and comfortably at the base of your finger. Your Oura Ring should not rotate as you go about normal daily tasks. We recommend wearing your ring sizer for at least 24 hours to confirm your best fit.

RECEIVE COUPON CODE — With a sizing kit purchase, you will receive a coupon code to use towards your Oura Ring at checkout. The coupon code amount equates to the cost of your sizing kit.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 93804761204

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4.9 ★★★★★
Based on 26 reviews
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Elijah
Carnegie, US
★★★★★ 5
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Size: 9.3" x 9.7" x 1.8"
This Bosch Filter costs less than an OEM Filter and is significantly better because it's a HEPA filter unlike the cheap filters that most automotive manufacturers use. Can't go wrong with this!
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Reviewed in the United States on May 26, 2026
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DanF
Grantham, US
★★★★★ 5
You really need to change this filter !!!!
Size: 9.3" x 9.7" x 1.8"
This is a great cabin filter for her 2013 Honda CR-V... It was relatively easy to get the glove box down just enough to allow me to get my hands on the cabin filter cover, and pull it out... It was so dirty!!! The new one immediately made the air coming into the car, so much nicer to breathe.... Great filter...Perfect fit.... Thanks, Bosch !!!
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Reviewed in the United States on February 7, 2026
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Thomas Lathrop
Alexandria, US
★★★★★ 5
Good deal
Good price for a good starter, arrived quicker than anticipated, well packaged, easy install and works as it should.
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Reviewed in the United States on August 19, 2025
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TN
Cuba, US
★★★★★ 5
Works fine 3 months in
Installed a few months ago, before the winter. I was chasing a no-start after replacing the old battery. We've seen single digit temps in the meantime and it is working well. The fit is perfect in a 2010 focus. If you can slide it in from the side and not drop it in from the top, you can replace it without taking off the intake manifold. There are useful videos online showing this. Good luck!
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Reviewed in the United States on December 28, 2025
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Chris C.
Lexington, US
★★★★★ 1
Will be returned as soon as I have a replacement.
When engine is cold starter works fine with engine is hot. It will free wheel the starter motor, but not kick the starter gear into the ring gear on the motor. Watch video and listen it actually did it twice at this location but I didn’t catch the first one on the video.
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Reviewed in the United States on December 25, 2025

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