QR code vs barcode

A traditional barcode stores about 20 characters in one dimension and must be scanned in roughly the right orientation. A QR code stores up to 2,953 bytes in two dimensions, reads at any angle, and survives up to 30% damage. Retail is now migrating from one to the other.

The comparison

	1D barcode (EAN/UPC/Code 128)	QR code
Dimensions	One — width only	Two
Typical capacity	12–20 characters	up to 2,953 bytes
Orientation	Must be roughly aligned	Any angle
Damage tolerance	Very low	7–30% depending on level
Reader	Laser or imager	Imager or any camera
Size for the same data	Wide	Compact
Consumer readable	No — needs dedicated hardware	Yes — any phone

Why 1D barcodes still dominate retail

Speed and cost at the till. A laser scanner sweeps a line and decodes in milliseconds, and the entire global product-identification system (GTIN) is built on them. Inertia here is measured in billions of items.

Why that is changing

The GS1 Sunrise 2027 initiative aims for point-of-sale systems worldwide to accept 2D codes. The driver is data: a 1D barcode identifies a product, while a GS1 Digital Link QR code identifies this specific batch of this product and links to a web page at the same time.

That single change enables batch-level recalls, expiry-aware discounting, and a consumer route to provenance and allergen data — all from the code already on the pack.

The EU Digital Product Passport pushes the same way for regulated categories.

Which to use

A till scans it → 1D today, plan for 2D. Print both during the transition.
A consumer scans it → QR code. A phone cannot usefully read an EAN.
You need more than 20 characters → QR code.
The surface is small and square → QR code, or Micro QR.
The surface is long and thin → 1D barcode, or rMQR.

FAQ

Can a phone read a normal barcode?

Most phone cameras can read EAN and UPC codes, but the result is just a number with no context, and the phone has nothing useful to do with it. QR codes are designed to carry an action.

Is a QR code better than a barcode?

For consumer-facing use and for anything needing more than about twenty characters, yes. For high-speed till scanning of a product identifier, a 1D barcode is still faster and universally supported.

What is Sunrise 2027?

A GS1 initiative for point-of-sale systems worldwide to accept two-dimensional codes such as GS1 Digital Link QR codes alongside traditional barcodes, enabling batch-level data on consumer packaging.

Do QR codes replace product barcodes?

Not yet. During the transition, packaging typically carries both — the 1D code for existing tills and a QR code carrying a Digital Link for everything else.