50 PCS NFC Tags Sticker with NTAG213 Chip Blank NFC Stickers Adhesive Labels RFID Tags Rewritable 137 Bytes Memory Compatible with All NFC-Enabled Smartphones and Devices

I've four so far for various automations in the iOS Shortcuts app on my iPhone and they've worked well. But note, it seems like sticking them to a conductive surface permanently disables them. I tried sticking one to a piece of silver trim in my car (which I thought was plastic) and the tag stopped working even after I peeled it off and it visually seemed fine. I thought it was a dud so I tried another tag and the exact same thing happened (and I verified it was working right before sticking). But as long as you avoid metallic-looking surfaces, they seem to work well. I'm only using these to trigger automations on my phone, so I have not attempted to read or write any data with them. They're quite compact and easy to stick onto anything. They unlock a lot of possibilities: any routine task you do, app you open, or setting you change that is associated with a location or object can now be automated.

They work, they’re cheap, a little bigger than some micro nfc tags. Can’t complain. If I had to be a whiner, I wish for their size they would be detected a little easier.

The LeadSeals 30 PCS NFC Tags Stickers with NTAG213 chips have been a fantastic addition to my tech toolkit. Functionality: These tags are rewritable and programmable, allowing for repeated edits or setting them to read-only mode for added security. UBUY Compatibility: They work seamlessly with all NFC-enabled smartphones and devices, making them highly versatile for various applications. WALMART Design: The adhesive backing is strong, ensuring they stay in place once applied. The white finish blends well with different surfaces, maintaining a clean look. Durability: Made from environmentally friendly PET material, these tags are waterproof, smooth, and wear-resistant, ensuring longevity even in various conditions. AMAZON Memory Capacity: With 144 bytes of memory, they are sufficient for storing URLs, contact information, or other small data sets. SHOP NFC Overall, these NFC tags are reliable, easy to use, and offer excellent value for various NFC applications. Highly recommended!

Mirror what the other reviewers say, with my own two cents. It's really easy to use with any NFC app you find on the app store. I have an iPhone so I usually use NFC Tools, but I bounce between a couple just to make sure that the commands are working. The sticking quality is really good. For speed, that depends on your data/connection so that's user error. And for functionality, just make sure that your device can do NFC things like the "Tap-to" function. My complaints are that the package it arrives in is SO suspicious. It's an envelope with a line of these- clearly ripped from a roll. I wish it came as a washitape roll instead of a creepy piece of torn paper. It makes you nervous to tap your device, but at least it functions well. In addition, make sure to allocate one or two test tags, as sometimes the commands won't erase fully- and there's nothing you can do about it. Learnt this the hard way.

These are small, cheap, and work well. They were exactly what I expected.

These do work with Ubiquiti/Unifi/Access readers (if you turn on "3rd party" cards option), although they are very low security (since any phone with NFC can read/impersonate them). But they are great if you don't need that level of security. They *are* pre-programmed with a 10-digit number on each tag (although it is not printed anywhere; you can use a USB HID reader and obtain the number if needed, or read it from a phone app). And it appears to be somewhat random (not sequential). The first 4 tags were numbered 2458982148, 2458981124, 2459045892, 2459048964. I can't spot the pattern, if there is one, other than the numbers are increasing. I don't know if different batches would have tags with the same number, but it is possible. It might even happen in the same batch (which could be problematic). Of course, you can reprogram the number to something else, but that is an additional hassle and wouldn't help with knowing if that number was already used. I do wish they enclosed documentation with the exact numbering methodology/scheme; it wouldn't cost them hardly anything to do (1 piece of paper). Anyway, I tested sticking these to the back surface of ID badges, and so far they seem to hold up well (if you clean the surface first). None of the several I have been using with people for several weeks have failed in any way. They are reasonably sticky and constructed well and easy to remove from the backing. Then I tested actually laminating these INSIDE newly-made ID badges. To my surprise, the heat/pressure didn't damage them and they work fine! Also didn't seem to affect the range. With the Unifi readers, that seems to be about under 1 inch or so, which is reasonable for such a small tag. Overall, I am very happy. Except for not knowing how they are numbered, they are nearly perfect for what I wanted to do and will likely buy many more.

Stiker NFC The product works very well and is easy to program with NFC Tools. I've tested and used it on both iPhone and Android, and it works wonderfully.

I make art badges and I like putting these behind the lamination so that way, if you ever are out and about, you can use the NFC tag to help with any type of link or social networking. Great quality they adhere amazingly and have pretty decent signal strength when reading and writing.

El producto funciona muy bien y se programa fácilmente con nfc tools. Lo he probado y usado tanto en iPhone como en Android y funciona de maravilla.

Works great! Embedded into a plastic ring that is 3mm thick, picked up by several phones. Worked best with apple devices, android surprisingly was hit or miss. Read through phones with cases as well. Great range. Id say upto 10mm applications should be fine.

Great product. 4 stars because their photo of the product is extremely misleading.

Not reliable for immediate action. Very slow to register when using an iphone. Takes multiple passes with the top of the phone. Update: Avoid! Unreliable.

poor quality, sometimes it works, sometimes it doesn't, waste of money