nfc tag compatibility with google nexus 5
According to this article Tectiles 2 tags are based on the NFC Forum Type 4 tag standard (though the article does not mention an exact chip). Also Samsung explicitly released Tectiles 2 for use with devices that have non-NXP NFC chipsets (like Galaxy S4). This means that these tags are compatible to all current Android NFC devices including the Nexus 5.