QR codes are read by any phone and suit equipment people look up individually. Barcodes suit environments that already have scanners. RFID reads many tags at once without line of sight, which is decisive for dense stock and frequent full counts — and unnecessary otherwise.
All three identify an item by reading a tag. They differ in what does the reading, whether line of sight is needed, and what the whole arrangement costs once hardware is counted.
Side by side
Read byQR codeAny phone camera1D barcodePhone or laser scannerRFIDDedicated RFID readerLine of sightQR codeRequired1D barcodeRequiredRFIDNot requiredRead at onceQR codeOne1D barcodeOneRFIDManyTypical rangeQR codeCentimetres1D barcodeCentimetresRFIDUp to several metresData capacityQR codeHigh1D barcodeLowRFIDModerateTag costQR codePennies1D barcodePenniesRFIDSubstantially moreReader costQR codeNone — phones1D barcodeNone or modestRFIDSignificant, and per locationSurvives damageQR codePartially — error correction1D barcodePoorlyRFIDWell — no optical surface
| QR code | 1D barcode | RFID | |
|---|---|---|---|
Read by | Any phone camera | Phone or laser scanner | Dedicated RFID reader |
Line of sight | Required | Required | Not required |
Read at once | One | One | Many |
Typical range | Centimetres | Centimetres | Up to several metres |
Data capacity | High | Low | Moderate |
Tag cost | Pennies | Pennies | Substantially more |
Reader cost | None — phones | None or modest | Significant, and per location |
Survives damage | Partially — error correction | Poorly | Well — no optical surface |
QR codes
The default for most equipment tracking, for one reason that outweighs the rest: every person already carries a reader. Nothing to buy, nothing to charge, nothing to be in the wrong van.
They hold enough data to encode a URL, so a scan can open the record directly. Error correction means a partially scuffed label still reads, which matters more away from a desk than the specification suggests.
The limit is one at a time, with line of sight. Counting a dense rack is slower than RFID — noticeably so above a few hundred items in one pass.
1D barcodes
Still sensible where you already have barcode infrastructure, or where laser scanners are in use for other reasons. They read very fast at short range with a dedicated gun.
They hold little data, so the code is only a key — nothing useful without the system behind it — and they tolerate damage poorly. For a new deployment there is rarely a reason to choose them over QR, but if you have them, keeping them is usually cheaper than relabelling.
RFID
The genuine capability here is bulk reading without line of sight. Walk past a rack and capture everything on it; pass a cage through a portal and count it. For high item density with frequent full counts, nothing else comes close.
The cost is not primarily the tags. It is readers, per location, plus the deployment work to make reads reliable around metal and liquid, plus a tagging process that is more involved than sticking on a label.
RFID projects most often disappoint when bought for asset tracking generally rather than for bulk counting specifically. If your actual daily action is 'look up this one item', you are paying for a capability you will not use.
Choosing
- 1Do you need to read many items at once, without handling them? If yes, RFID. If no, stop — you do not need it.
- 2Do you already have barcode scanners deployed and in use? If yes, barcodes are cheapest to continue.
- 3Otherwise, QR. The reader is already in everyone's pocket, which is the constraint that actually decides whether a register stays accurate.
Stackroom reads QR codes and barcodes with a phone camera, and works with Bluetooth scanners if you own them. It does not support RFID readers — worth knowing early if bulk counting is your requirement.
Frequently asked questions
Is RFID better than QR for asset tracking?
Only if you need to read many items at once without handling them. RFID means tags, readers per location and a deployment effort. For looking up one item at a time, a phone camera and a QR code is faster to deploy and adequate.
Can a phone read asset barcodes?
Yes, phone cameras read both QR codes and standard barcodes. A dedicated scanner is faster for long high-volume sessions but is not needed for ordinary lookups and handovers.
Which is most durable?
RFID tags survive best because they have no optical surface to scuff. QR codes tolerate partial damage through error correction. Plain barcodes fail soonest when scratched or smudged.
What if we already use barcodes?
Keep them. If the label carries a code you can export, import it as the asset reference and scanning continues to work. Relabelling an existing estate rarely pays for itself.