Waterproof Ceramic NFC Ring, NFC Forum Type 2 215 496 Bytes Chip Universal for Mobile Phone, All-Round Sensing Technology Wearable Smart Ring, Wide Surface Fasion Ring(10#)

Bought this a while ago and cannot live without it. Simple, durable and perfect for my needs. I use it as a personal business card and have also used it for keypads and other card/nfc door access applications.

I wanted to try and nfc ring for fun. This product had the best cost so I purchased this one. The only feature provided by this product is NFC as stated so don't expect other smart ring functions. Works really well with any modern smart phone and the NFC tools app. I programmed the ring to have my Contact information.One note: Ensure that you do the ring sizing check that they suggest. I went with the largest option available and it was still too small for most of my fingers. I currently wear it on my pinky for the most part.

Not for the work I do, chipped and will crack.

Tesla model 3 did not recognize this ring, couldn’t use it. Looks nice though...

The ring looks and feels really nice, and works exactly how I expected it to as an NFC ring. The only thing was, I measured for my Index finger which turned out to be a size 10, and I received a size 10 ring, but it didn't come close to fitting my index finger. It did fit my Ring finger which is fine, but keep in mind you may need to order a size or two larger than what you've measured... otherwise, I highly recommend this ring.

This one works with iPhones! At least with my iPhone 13. Downloaded the Yalintech NFC app and, once I got through the dozen or so popup nag screens, was able to figure out how to write my website url to the ring. Easy enough and it's still working after a week. The ring itself is sized correctly, fits great and seems to be made of quality... metal? Certainly is smooth and round... ringlike, would probably be an accurate description. I think I'm done here.

It's perfect for my intended use, additional information available to emergency personnel that see my custom medical alert bracelet (a new, gutted, cheap watch with a modified and printed face) directing them to read it with their NFC enabled phone.R-E-A-D the instructions that come with the ring. I read someone was complaining they could not unlock their ring, after locking it. The instructions warn to never lock it, because you won't be able to unlock it ever.Another reason for purchasing this ring, is it's yours. You don't need to register it with the manufacturer in order to use it. Registration means possible invasion of your privacy, perhaps adding saved information to relational databases about you.

I thought this would be better than it is. The NFC is very hit or miss even when trying to find it with an android. Sometimes it shows up every time, other times you are tapping, tapping, and tapping for nothing to pop up. The ring also just looks ok, nothing really to be impressed by.