What is the difference between NFC and barcode asset tags?
An NFC tag stores an ID in a chip that is read by radio. A barcode or QR code stores an ID in a printed pattern that is read by sight. Both do the same job: they let a scan pull up the right record in your register.
That record lives in your asset tracking software, not on the tag. The tag only has to identify the item quickly and reliably. So the choice comes down to how and where each asset is used.
There are three common options:
- 1D barcodes are the familiar rows of bars. GS1-128, the GS1 linear barcode for business data, holds up to 48 data characters.
- 2D codes such as QR codes and Data Matrix store data in a grid of squares. They hold more data and can survive some damage.
- NFC tags hold a chip and an antenna. The NXP NTAG213 chip, used in many tags, runs at 13.56 MHz and has a unique 7-byte ID set at the factory.
How far away can you read NFC tags, barcodes and QR codes?
NFC tags are read at very short range, while barcodes can be read from further away with the right label and scanner. NXP gives an operating distance of up to 100 mm for NTAG213. That depends on field strength and antenna geometry, and with a phone it is a few centimetres in practice.
Barcode range depends mostly on the size of the printed code and the scanner. GS1 publishes separate symbol size tables for normal and long-distance scanning. Larger labels can be read from further away, which helps with assets mounted high up.
Short range is not always a weakness. It means the person scanning must be standing at the asset. For an audit, that is useful proof that someone actually saw the item.
Do asset tags need line of sight to scan?
Barcodes and QR codes need line of sight, but NFC tags do not. A scanner must see a printed code clearly, so dirt, paint, glare or a missing corner can stop a read.
An NFC tag is read through a radio field, so the chip can sit inside a sealed plastic casing. NXP's data sheet notes that the reader's field also supplies the tag's energy. There is no battery to fail.
Metal is the exception. NXP's antenna design guide explains that metal near an NFC antenna absorbs power and shortens the operating distance. A ferrite sheet between the antenna and the metal shields it.
For tools, cabinets, generators and vehicles, ask for NFC tags made for mounting on metal. Test a sample on the real asset before you order in bulk.
Which asset tag lasts longest in harsh conditions?
The tag that lasts longest is the one whose housing suits the environment, whatever the technology. A chip in a sealed casing usually outlasts a paper label outdoors. A well-made engraved label can outlast a cheap sticker of either kind.
For NTAG213, NXP specifies data retention of 10 years and 100 000 write cycles. Asset tags are mostly read, not rewritten, so the write limit rarely matters.
Printed codes wear differently. A scratch across a 1D barcode can stop it scanning. QR codes have four levels of error correction, and GS1 notes the highest level recovers up to 30% of the code.
For parts that wear off any label, GS1 also covers 2D codes marked directly onto the item. This is called direct part marking, and it has its own symbol specification table.
Can asset tags be copied?
Printed barcodes and QR codes are easy to copy, and NFC tags are harder. A photocopy or a phone photo of a printed code will usually scan. Someone could scan an asset without being near it.
NTAG213 adds several protections, according to NXP's data sheet:
- A 7-byte ID programmed by the manufacturer for each chip.
- An originality signature, so software can check the chip was made by NXP.
- A 32-bit password to block unauthorised changes to memory.
- A locking function that makes memory pages read-only.
Copying an NFC tag needs special blank tags and tools. That makes casual copying much harder, though not impossible. Your software also matters, because it should flag the same tag scanned in two places.
How do NFC, barcode and QR asset tags compare?
NFC tags win on durability and copy resistance, while printed codes win on cost and read range. The table sets out the main differences.
| Feature | 1D barcode | QR code (2D) | NFC tag |
|---|---|---|---|
| How it is read | Optically, by a laser scanner, imager or camera | Optically, by a 2D imager or a camera | By radio, from an NFC phone or reader |
| Line of sight | Needed: the bars must be visible and clean | Needed, but some damage is tolerated | Not needed: the chip can sit inside a plastic casing |
| Read distance | Depends on label size and scanner; long-range labels exist | Depends on code size and camera | Up to 100 mm for NTAG213, a few centimetres on a phone in practice |
| Data held | Short ID; GS1-128 allows up to 48 data characters | Much more; an ID or a web link is typical | Factory ID plus 144 bytes of user memory (NTAG213) |
| Damage tolerance | Low: scratches across the bars stop reads | Error correction recovers up to 30% of the code at level H | Good while the casing protects the chip |
| Copying | Easy: a photocopy or photo scans | Easy: a photocopy or photo scans | Harder: needs special blank tags and tools |
| Reader you need | Any barcode scanner or a phone camera | A 2D imager or a phone camera, not a laser scanner | An NFC phone or an NFC reader |
| On metal | Fine, if the label stays on | Fine, if the label stays on | Needs a tag built for metal |
| Cost per tag | Lowest | Lowest | Higher |
Read distances and data limits come from the NXP and GS1 documents listed under Sources. Cost is shown as relative, because label and tag prices vary with material, size and quantity.
What reader do you need for each type of asset tag?
Laser scanners read 1D barcodes, 2D imagers and cameras read both 1D and 2D codes, and NFC needs an NFC reader. GS1 is clear that laser scanners and linear imagers cannot read 2D codes such as QR codes.
A smartphone can cover all three, if it has NFC and a scanning app. Its camera reads barcodes and QR codes, and its NFC antenna reads tags. Rugged handhelds suit warehouses and workshops where phones get dropped.
Before you choose a tag, list the devices your team already carries. Choosing QR codes for a team with laser scanners means buying new devices.
Which asset tag should you choose for each kind of equipment?
Most registers end up using more than one tag type, chosen per asset class. A practical split looks like this:
- Office furniture and IT equipment indoors: barcode or QR labels. They are cheap, quick to print in bulk and stay clean.
- Tools and equipment that are checked out daily: NFC tags, or durable QR labels. Fast scans at the store counter matter more than tag cost.
- Outdoor and dirty equipment: NFC tags in a sealed casing. Printed codes fade and get covered in grime.
- Metal assets: NFC tags built for metal, or engraved and directly marked 2D codes.
- High-value or theft-prone items: NFC tags, so a scan cannot be faked with a photo.
If you want a standard numbering scheme, GS1 defines the Global Individual Asset Identifier (GIAI) for individual assets. It can be carried in GS1-128, GS1 DataMatrix or GS1 QR Code, and must never be reused.
Tagging is only the start of an audit. Our guide on how to do a fixed asset audit covers counting and reconciling. For checkpoints rather than assets, see NFC vs QR code patrol systems.
How Worxit handles this
Worxit Asset Management works with both NFC and barcode asset tags. Staff register and onboard assets from a phone, then attach a tag to each item.
- Scanning the tag confirms the asset at check-out, check-in, transfer and audit.
- Transfers are recorded between staff and between branches.
- Each scan is recorded with the GPS location, which gives the asset's last known location.
- All branches share one central asset register with a custody history.
Worxit pricing is a R600 monthly dashboard licence, including one admin user. Extra dashboard users are R75 per user per month. Each phone, tablet or radio running the app needs a R350 monthly device licence.
Zamatrack also sells NTAG213 NFC tags in IP67 casings at R30 per tag. All prices exclude VAT. These are sold as patrol checkpoint tags, so test one on your asset type before you roll them out.
Frequently asked questions
What is an NFC asset tag?
An NFC asset tag is a small chip and antenna, usually in a sticker or plastic casing, fixed to a piece of equipment. A phone or reader held close to it reads the tag's unique ID. The software then links that ID to the asset's record in the register.
Do NFC asset tags need batteries?
No. A passive NFC tag, such as one built on the NTAG213 chip, has no battery. It takes its energy from the reader's radio field at the moment it is scanned. The phone or reader doing the scanning is what needs charging.
Can a phone read both barcodes and NFC asset tags?
A phone with NFC can read NFC tags, and its camera can read barcodes and QR codes through a scanning app. Dedicated laser scanners read 1D barcodes but not QR codes. Check that each device your team carries supports every tag type you plan to use.
Do NFC tags work on metal equipment?
Not well on their own. Metal close to an NFC antenna absorbs energy from the field and shortens the read distance. A ferrite layer between the antenna and the metal shields it. For metal assets, ask your supplier for tags designed to be mounted on metal and test them first.
Are NFC asset tags more expensive than barcode labels?
Usually, yes, per tag. A printed barcode or QR label costs very little, while an NFC tag has a chip and often a casing. Compare the total cost instead: how often labels must be replaced, how long scans take, and what a lost or misidentified asset costs you.
Sources
- NXP NTAG213/215/216 product data sheet, Rev. 3.2: operating frequency, operating distance, 7-byte ID, memory, originality signature, password, data retention and write endurance.
- NXP AN11564, PN7120 Antenna Design and Matching Guide, Rev. 1.1: how metal near an NFC antenna shortens range, and ferrite shielding.
- GS1 General Specifications Standard, Release 26.0: GS1-128 data length, QR code error correction, which scanners read 2D codes, direct part marking and the GIAI asset identifier.