NFC Tags Specifications

NFC Tags consist of a chip (integrated circuit) and an antenna. There are different kinds of NFC chip.

NTAG series NFC Chips have Universal Compatibility. They are compatible with every NFC-enabled smartphone and tablet.

Technical Specifications of NFC Chips are summarized in the table below.

NTAG Series Specifications

 NTAG203NTAG210NTAG212NTAG213NTAG215NTAG216
Total memory (1)168 bytes80 bytes164 bytes180 bytes540 bytes924 bytes
Available memory (2)137 bytes48 bytes128 bytes144 bytes504 bytes888 bytes
URL Max Length (3)132 characters41 characters122 characters132 characters492 characters854 characters
Text Max Length (4)130 characters39 characters120 characters130 characters490 characters852 characters
Max vCard fields (5)4-52-33-45-68-1010+
Universal compatibilityYesYesYesYesYesYes
NFC Forum Type (6)Type 2Type 2Type 2Type 2Type 2Type 2
Cryptography (7)NoNoNoNoNoNo
Scan counterNoNoNoYesYesYes
32 bit PasswordNoYesYesYesYesYes
Serial number (8)7 bytes7 bytes7 bytes7 bytes7 bytes7 bytes
Why choose this onePopular chip, available in several shapes, cost effective.Cheap, but small memory: just for short URLs.Cheap, good ScanStrength. Ideal for marketing (smart poster, packaging).Very good ScanStrength. Great NFC Tag.Good memory, but limited availability.Good ScanStrength and large memory. More expensive, but great for vCards.
  1. Total memory: is the total memory of the Tag. Part of it, however, is not writable, as required for some functions.
  2. Available memory: the actual memory you have for writing data on the NFC Tag.
  3. URL Length: the maximum number of characters that a link on this Tag can contain, net of the 'http://www.'
  4. Text Length: the maximum number of characters that you can write on this NFC Tag.
  5. Maximum number of vCard field: it is approximately because it depends on the length of each field.
    vCard is the standard format for importing/exporting contacts of address book.
  6. NFC Forum specifications T2: compatibility with the technical specifications drawn up by the NFC Forum Type 2. For more information, please visit http://www.nfc-forum.org.
  7. Encryption: a safety feature on the chip, which can help prevent the cloning is an advanced feature that requires technical skills, but not necessary for standard use.
  8. Serial Number: the Tag contains a unique ID, called UID.

For more information about Ntag213/Ntag215/Ntag216, see their data sheet by NXP.

Specifications of other types of NFC Tags: Mifare, Ultralight, Desfire, Topaz

Mifare Classic 1kMifare Ultralight EV1Mifare Ultralight CMifare Desfire 2k/4k/8kTopaz 512
Total memory (1)1 kb (1024 bytes)64 bytes192 bytes2/4/8 kb (4096 bytes)512 bytes
Available memory (2)716 bytes48 bytes148 bytes2/4/8 kb454 bytes
URL Length (3)710 characters41 characters132 characters2/4/8k characters449 characters
Text Length (4)708 characters39 characters130 characters2/4/8k characters447 characters
NFC Forum Type (6)NoneType 2Type 2Type 4Type 1
Cryptography (7)Crypto-1No3DESYesYes
Serial number (8)YesYesYesYesYes
Why choose this oneFor high storage or systems based on Mifare protocol.Cheap, but small memory: just for short URLs.Cryptography supported.Cryptography supported, very large memory.Universally compatible, but limited availability.
  1. Total memory: is the total memory of the Tag. Part of it, however, is not writable, as required for some functions.
  2. Available memory: the actual memory you have for writing data on the NFC Tag.
  3. URL Length: the maximum number of characters that a link on this Tag can contain, net of the 'http://www.'
  4. Text Length: the maximum number of characters that you can write on this NFC Tag.
  5. Maximum number of vCard field: it is approximately because it depends on the length of each field.
    vCard is the standard format for importing/exporting contacts of address book.
  6. NFC Forum specifications T2: compatibility with the technical specifications drawn up by the NFC Forum Type 2. For more information, please visit http://www.nfc-forum.org.
  7. Encryption: a safety feature on the chip, which can help prevent the cloning is an advanced feature that requires technical skills, but not necessary for standard use.
  8. Serial Number: the Tag contains a unique ID, called UID.