Comparison of QR and RFID
| QR code | RFID | |
| Application | product coding, web address, product description | Entrance controll, public transport ticketing, payment, digital document security |
| Special applications | payment and authentication | Dog vaccination controll, sport tracker |
| Visibility | Visible | Should not be visible |
| Reading distance | depending on the reading device, a few cm. | depending on the reading device, and antenna type from few mm to few meters |
| Writting/reading | on mobile phone application it is dinamic writable and readable, on card it is only readable | It is writable and readable, if it was not closed |
| Data capacity | 2953 byte, alphanumeric 4296, number 7089 characters | 1kb,2 kb,4kb,64k |
| Reliability | Printed, laser engraved code is readable even if 30% of the surface is demaged. | It is workable until the antenna, the chip, or the connection between these two is broken |
| Security | The QR code is readable with any standard equipment, and reader, but the data content can be protected with criptography, same leve as with RFID chip for ICAO. | different security levels (SL0,SL1,SL2,SL3). |
| Reading speed | quick | quick |
| Reading equipments | standard QR code readers, mobile phones (standalone, no adds on are neaded), passport readers | RFID reader |
| Cost | $0.00 | $0.05-$1.00 |
Summary adventages and disadvantages of CQR code:
- ISO standard reading, ICAO compliant
- no adds on, standalone cheap mobilephone is good enough to read, easy and quick to read
- durable code, 70% of the surface is enough to read.
- Even if data storage is much less than RFID chips, you can store color photo, personal data, biological data of the document holder.
- Same level of security is possible like RFID ICAO chips.
- You can use the CQR code on the screen of a mobile phone for full authentication of the holder, so this it can be used as digital ID as well.
- No direct cost of code printing, income can be generated without production cost