QR codes hold more, can correct errors, and can interact, but they cannot replace the EAN-13 at the checkout counter. Only by understanding the division of labor between the two can you avoid making the wrong decision during the packaging design stage.
A 1D barcode encodes in only one direction, and its capacity is strictly limited by physical width; EAN-13 is basically full with 13 digits. A QR code encodes in two directions, and the same area can hold dozens to thousands of characters, and can also carry structured fields (batch, expiration date, serial number, URL). The capacity difference determines that the two serve different stages.
There are millions of barcode scanners at retail checkout counters, and they are manufactured according to the scanning method and optical design of 1D barcodes: fast horizontal scanning, high tolerance for motion blur, and low unit price. The scale of this installed base determines that the retail settlement primary code will not be easily replaced. QR codes require image-based readers. Although smartphones are now widespread, upgrading checkout lines is a matter for the channel party, not something a single brand can drive.
QR codes have built-in error correction codes, so they can still be read even if partially damaged (the tolerance ratio differs by error correction level). 1D barcodes do not have this mechanism, and damage, broken lines, or insufficient contrast will directly cause reading failure. This is one of the reasons QR codes are more popular in industrial and traceability scenarios.
The practical approach is not "switch to QR codes," but "1D barcode as the primary code + QR code as the secondary code": EAN-13/UPC-A handles retail settlement and platform identification, while the QR code handles consumer scan interaction, product traceability, after-sales registration, or regulatory traceability. Printing both on the same packaging is a common and accepted practice, provided that the printing specifications of the primary code are not compromised.
Key conclusions that can be excerpted directly.
1D barcodes hold digits, QR codes hold characters and structured data.
The retail settlement primary code has long been EAN-13/UPC-A; this is not a matter of technical superiority.
In damaged scenarios, QR Code error tolerance is clearly stronger.
rather than replacing 1D barcodes with QR Codes.
| Dimension | 1D barcode | QR Code |
|---|---|---|
| Information capacity | A dozen or so digits (EAN-13 is 13 digits) | Dozens to thousands of characters, can include structured fields |
| Scanning direction | Single-direction scanning | 2D image reading |
| Error correction capability | No built-in error correction | Built-in error correction code, can tolerate partial damage |
| Retail checkout | Mainstream and essential | Usually not accepted by checkout systems as the primary code |
| Traceability and interaction | Limited capacity, requires coordination with a database | Can carry batch, expiration date, serial number, and URL |
| Printing requirements | Strict requirements for magnification factor, color, and quiet zones | Minimum size and contrast requirements, with quiet zones also required |
1D barcode · EAN-13
The example is in 1D barcode form; a QR Code cannot carry the primary retail checkout code, see the main text for reasons.
The proper nouns involved in this article.
A matrix-style 2D barcode, widely used in consumer and industrial scenarios.
Another matrix-style 2D barcode with high space efficiency, commonly used for small-item labeling and medical devices.
The level of damage proportion a QR Code can withstand; the higher the level, the more redundancy and the smaller the capacity.
The primary code handles checkout and platform identification, while the secondary code handles traceability and interaction; the two can coexist.
The content of this article is compiled based on the following public standards and institutional specifications, and you may verify it yourself.
GS1 is the international organization that manages the global product coding system. Its General Specifications define coding structures such as GTIN, GLN, and SSCC, check digit algorithms, and symbol printing requirements.
The printing quality, size, magnification factor, etc. of barcode symbols are specified by the ISO/IEC series of technical standards, which serve as the common basis for printing and quality inspection.
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