Difference Between QR Code and Data Matrix Code: Key Points

The modern world actively uses two-dimensional codes for quick information transfer. The most common type is the QR code, which can be found everywhere, from product packaging to advertising materials, thanks to their wide availability and ease of creation. Thus, they are easily seen in advertisements, on receipts, tickets, and can also be used to create an electronic business card. Nonetheless, QR codes are not the only kind in existence: there is also the Data Matrix code, which finds application in various areas thanks to its unique characteristics.

Differences Between QR Code and Data Matrix Code

At first glance, it seems difficult to differentiate between these two types of codes, as both are grids of pixels. However, their appearance is deceptive: the encoding systems differ. QR codes are recognizable by three squares in the corners, which are used for their identification and decoding. In contrast, Data Matrix codes use an L-shaped corner for this purpose.

Functionality Comparison of QR Codes and Data Matrix Codes

From a functional standpoint, both types of codes represent two-dimensional images for storing information and can be used interchangeably in some cases. However, each has its features that make them more suitable for certain tasks. QR codes can contain more data, including up to 7089 numeric or 4296 alphanumeric characters, and support Kanji and Kana. Data Matrix codes, however, are limited to 3116 numbers or 2335 alphanumeric characters without support for other writing systems, which narrows their use. Still, they can be significantly smaller in size, which is beneficial for marking small details or use on curved surfaces.

Readability of QR Codes vs. Data Matrix Codes

Data Matrix codes, being more adapted to industrial use, withstand physical damage better than QR codes, thanks to a higher level of error correction and less stringent requirements for print contrast. This allows them to remain functional even with significant damage or color changes, which is especially important for long-term use in manufacturing conditions.

Size Differences Between QR Codes and Data Matrix Codes

In terms of size, a larger code size allows for more information storage. The minimum size for a Data Matrix code is 10x10 cells, while a QR code starts at 21x21 cells. The maximum sizes are 144x144 cells for the Data Matrix code and 177x177 for the QR code, highlighting the differences in their application and data storage capabilities.