RENPHO Ring Sizing Kit for Lynx Smart Ring, Find Your Size with Measurement Tool Set, 6-13 Sample

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Your Sales Price $1.99 - $1.00

A quick rundown of this product’s key features:

The RENPHO ring size differs slightly from universal ring sizes. To determine your ideal fit, purchase this sizing kit before buying the actual ring.
RENPHO Ring Sizing Tips: To find your perfect fit, test it on your desired finger, wear it for a full day, and then confirm the size.
Choosing the right size for RENPHO LYNX Smart ring is crucial for precise measurements, which ensures optimal performance and personalized insights tailored to you.
The RENPHO sizing kit is crafted from durable plastic. The actual ring exterior, available for separate purchase, features a premium Titanium construction.

Our Top Reviews

Reviewer: Javier Inga
Rating: 5.0 out of 5 stars
Title: Honest review
Review: If you compare it with ringconn, another option of smart ring with a free app, this ring has less data but has the most important data such as sleep tracking, pulse, stress level and blood oxygen (these 4 being the most important). Also, the material of construction is of quality, if scratched but with difficulty in addition to its design is unique if you compare them with other brands such as ringconn or aura ring.Its 5 ATM waterproof protection is great, I have 3 weeks of daily use, washing my hands or washing dishes and there has been no problem.The only negative thing I could say is that it takes a few seconds to sync with the app every time you enter to see the information and the step count information is not accurate (like all smarr ring).If you are looking for a smart ring and at a price below the competition, this could be an option, it will not have all the details that a ringconn or aura ring have, but it certainly has the most important information for the care of your health. Hopefully the brand can update the app to put more detailed information of the measurements that makes this ring, because although the app offers the most important information, it is obvious that the app is not 100 % prepared to get the most out of this ring.TIP: If you have doubts between this or other rings the best thing to do is to download their apps and check if the app and the information it offers is good enough to be willing to pay 200 or 300 dollars.

Reviewer: Christopher Armstrong
Rating: 5.0 out of 5 stars
Title: Excellent buy, very happy with this.
Review: I recently purchased this ring and can confirm it is of excellent quality. The app is super easy to navigate, you can sync it with Fitbit and other health related apps. It monitors your sleep, heart rate, blood pressure, blood oxygen levels, steps, calories burned, exercise and you can even input aspects of your diet. I haven’t tested it yet but I believe you can also pair it with a smart scale. It is a little on the large side so it definitely seems more oriented towards men but from one customer to another I say this is a good purchase.

Reviewer: smitchell
Rating: 5.0 out of 5 stars
Title: worth the money
Review: Good and cheap way to get your ring size.

Reviewer: Gerald
Rating: 4.0 out of 5 stars
Title: Renpho App is awesome
Review: This is my 3rd fitness ring the first 2 were generic. The app makes the difference and this ring stays charged for over a week. I wear size 11 in most rings but it is a bit snug.

Reviewer: buwanidaddy
Rating: 5.0 out of 5 stars
Title: Everything $400 for only $180!!!
Review: Perfect fit, seamless integration with the scale and BPM, and the battery is ridiculously robust. I’m very pleased with the tech and ecosystem. Well done guys.

Reviewer: Ashutosh Upadhyay
Rating: 5.0 out of 5 stars
Title: Good choice and easy to use
Review: It is easy to use for the sizes mentioned.

Reviewer: Stephanie Chudy
Rating: 2.0 out of 5 stars
Title: Bulky for women’s hands
Review: Love this brand and was excited for it but it’s better for a man’s ring than female. Wish they had a thinner ring had to return

Reviewer: Crystal
Rating: 4.0 out of 5 stars
Title: Small
Review: Works good. But a very small size 6

Price effective as of Jun 28, 2025 04:01:48 UTC

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