I've been playing around with NFC tags a lot lately. I have one with my contact info ready to go to a conference with me, I have one on my gym bag to open Endomondo and Google Play Music. I have one on my keychain that opens a note for me of things I deem important if I'm going somewhere (the note is in Evernote, so I can change it pretty easily).
I originally bought a pack of tags and a keychain from tagsfordroid.com through Amazon. These tags are pretty beefy. In using NFC Task Launcher, I posted a twitter update that ultimately earned me two free tags from tagstand. I noticed theirs seems much thinner.
The differences are substantial, as illustrated in the image below.
The tagstand sticker is a normal sticker thickness. The tagsfordroid.com sticker is much thicker.
The image below shows the entire group - the two tags from tagstand and a stack of tags from tagsfordroid and a set of a dozen decals to apply to the tags so you know what your tags do.
While the tags provided by tagstand were free, they do this for anyone that downloads the NFC Task Launcher app and posts a twitter update using the application. They aren't aware I'm writing this, the tags were not provided to help write this, and I've not been offered any compensation for writing this.
I am not trying to show that one is better than the other. Both tags work. There are times one may want a thicker tag, and there are times that one may want a thinner tag. The purpose of this post is to illustrate a difference between the two.