What is an NFC business card?
Andrew Geerdts · 11 October 2026 · 4 min read
An NFC business card is a plastic, metal or wooden card with a small NFC chip inside, written with the address of your digital business card. When someone holds their phone near it, the phone reads the chip and opens your card in the browser. Most phones made since about 2018 read one without any app.
How does an NFC business card work?
NFC stands for near field communication. It is the same short-range radio that contactless payment uses: a reader creates a small field, a passive chip inside that field draws enough power from it to wake up and answer, and the two exchange a few bytes. In a business card the chip holds a single web address. When a phone comes within a few centimetres, it reads the address and offers to open it. There is no battery in the card and nothing to charge.
What opens is your digital business card, the page with your details on it. The NFC card is only the doorway. This is the point most people miss when they first look at NFC cards: the card itself holds almost nothing, and everything that matters lives on the page it points to.
Which phones can read an NFC business card?
Nearly all of them. iPhones have read NFC tags in the background since the XS and XR, so roughly since 2018, and Android phones have done so for longer. The reader sits near the top of the phone, so the tap is a matter of holding the top edge against the card for a moment. No app is needed; the phone shows a small banner and a tap on it opens the page.
Older phones and a few budget models have no NFC. For those, the usual fallback is a QR code printed on the same card, which is why most NFC business cards carry both.
What is on the chip?
A web address, and usually nothing else. The chip has room for a few hundred characters, which is plenty for a short link and far too little for a card's worth of details. That is a feature, not a limit. Because the chip holds a pointer rather than the details, the details can change without touching the chip. A card written with umbel.me/@mary opens whatever Mary's card says today.
Do you need a special NFC card, or will any tag do?
Any tag that can hold a web address will do, and most can. You can buy a plain NFC sticker or a blank plastic card and write your link to it with a free NFC writing app in under a minute. Branded metal and wooden cards do the same job and cost more; you are paying for the object, not the chip. Umbel does not sell tags or cards, and does not need to. The card it makes is the page, and any tag written with that page's address opens it.
If you do buy a printed card, make sure the chip is rewritable, so you can point it somewhere new later, and that the card also carries your QR code.
NFC business card or QR code: which is better?
They are not rivals; they are two ways of moving the same address. NFC is quicker and feels more like a handshake, since nothing has to be aimed. A QR code works on every phone with a camera, can be shown on your screen without owning anything, and can be printed on anything. The honest answer is to have both, lead with the tap, and let the code catch the phones that cannot read a tag.
What happens when your details change?
Nothing happens to the card, which is the whole appeal. You change the page, and the next tap opens the new version. If you move to a different card service, you rewrite the chip with the new address, assuming you bought a rewritable one. If the chip is locked and the service you used closes, the card becomes a piece of plastic, so the rewritable question is worth asking before you buy.
What does an NFC business card cost?
A blank tag or sticker costs very little, and a plain plastic card not much more. A branded metal card is a considered purchase. The recurring cost is the page behind the card, if there is one: one card on Umbel is free, and services charge for more cards, teams and extras. Weigh the price of the object against how often you will actually tap it; for many people a sticker on a phone case does the job.