NTAG203 vs. NTAG424
These two chips, the NTAG203 and the NTAG424 are from the same NTAG family of chips. They are both manufactured by NXP.
The NTAG203 was the first of the NTAG series of chips from NXP released in 2011. The previous generation to the current NTAG series of chips.
The NTAG203 is no longer in production and we very, very strongly recommend that you do not purchase any tags using this chip. They are either very old or non-genuine NXP chips.
The authentication NTAG424 DNA chip was launched in 2019 as a replacement for the first authentication NTAG chip, the NTAG413. Hosting a wealth of security features this second generation frictionless authentication chip is now the standard for anti-counterfeit, phygital (physical to digital) and web3 based projects.
Both these chips have a strong ScanStrength and will work very well with mobile phones.
Key Features
Key Specifications
| Brand | NXP |
| Chip Series | NTAG |
| NFC Forum | Type 2 |
| Availability | |
| ScanStrength | High |
| Brand | NXP |
| Chip Series | NTAG |
| NFC Forum | Type 4 |
| Availability | Low |
| ScanStrength | High |
Phone compatibility
Typical Use Cases
- Marketing & Advertising
- Vouchers
- Bluetooth Pairing
- GS1 EPC/RFID
- Object Identification
- Product Information
- PLCR
- Anti-counterfeit
- Authentication
- Phygital
User Features
| NTAG203 | NTAG424 | |
|---|---|---|
| Total memory (bytes) | 168 | 416 |
| User memory (bytes) | 144 | 256 |
| Max URL (chars) | 136 | 249 |
| UID (bytes) | 7 | 7 |
| ECC signature | - | |
| 32-bit password | - | - |
| UID ASCII mirror | - | |
| Scan Counter | - | |
| Counter ASCII mirror | - | |
| Lockable |
Technical Specifications
| NTAG203 | NTAG424 | |
|---|---|---|
| Chip thickness | 120 µm | 75 µm / 120 µm |
| NFC Forum | Type 2 | Type 4 |
| Operating Freq. | 13.56Mhz | 13.56Mhz |
| Data Trans. Rate | 106 kbit/s | Up to 848 kbit/s |
| Input Capacitance | 50pf | 50 pF |
| Fast read | - | - |
| Data retention (years) | 5 | 50 |
| Write endurance (cycles) | 10000 | 200000 |
| Anticollision | - | |
| Standard | ISO/IEC 14443 A | ISO/IEC 14443 A |
| Release date | 2011 | 2019 |
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