Home / Data Matrix vs. QR code – which 2D code fits?

Data Matrix vs. QR code – which 2D code fits?

Data Matrix and QR code are the two most common 2D codes. Both store a lot in little space but differ in capacity, minimum size and use case.

Structure & capacity

The QR code holds up to ~4,296 alphanumeric characters, the Data Matrix up to ~2,335. For large amounts of data or URLs, QR is usually the better choice.

Size & direct part marking

Data Matrix reaches very small minimum sizes (a few mm²) and is laser-etched directly onto parts (direct part marking). QR codes are ideal for displays, posters and packaging.

Error correction

QR offers four selectable error-correction levels (L/M/Q/H, up to 30 % recovery) – handy when embedding a logo. Data Matrix uses a fixed built-in Reed-Solomon correction.

Typical use cases

QR: marketing, menus, WiFi, payments. Data Matrix: industry, electronics, medical devices and pharma serialization under the EU FMD.

Which should I choose?

If end customers scan with a smartphone, use the QR code. For tiny parts or industrial marking, Data Matrix is the right choice. For very large data amounts, PDF417 is also worth a look.

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FAQ

Can a phone read Data Matrix?

Yes, modern camera apps read both codes. QR codes, however, are supported more broadly and faster by standard cameras.

Which code is smaller?

Data Matrix reaches smaller minimum sizes and is therefore better suited to direct marking of very small parts.

Is QR or Data Matrix more robust?

Both are robust. QR shines with adjustable error correction up to 30 %, Data Matrix with high data density in the smallest area.