How much more “data” does a QR code have, compared to a regular “bar code/UPC code”?

Question

I kind of understand how a UPC code works, but how is a QR code capable of “storing more data”?

In: Other

Answer 1

UPC, specifically UPC-A, is a series of line of varying thickness representing 25 bits to encode a 12-digit number

QR code is a series of black squares presented in a grid that can represent up to a 7089-digit number with 23624 bits.

So if you’re strictly speaking of data then a QR code can have 23599 more bits of data.

When you start encoding different types of information then it varies. There are multiple ways of encoding data into a QR code across the many iterations of the specification.