In short
NFC has a few limitations: a range of a few centimetres, older phones or tablets without a chip, reading disrupted by metal, a small memory and, for an online profile, the need for internet. Each one has a simple solution, starting with the QR code.
NFC limitations at a glance
NFC has become the standard way to pay contactless, validate a transport ticket or share your contact details. Knowing NFC limitations helps you avoid surprises and pick the right back-up when NFC is not enough. Here are the six limitations you meet in practice, each with its solution.
1. A range of a few centimetres
NFC only works between about 1 and 4 centimetres. That is intentional, for security, but it sometimes surprises people: you really have to bring the card close, to the right spot of the phone.
Solution: hold the card against the top of the back of an iPhone, or the centre of the back of an Android phone, for a second. Once you know the gesture, reading is instant.
2. Not every device reads NFC
iPhones older than the iPhone 7, some entry-level Android phones and most tablets, including every iPad, cannot read NFC cards. On Android, NFC can also be switched off in the settings.
Solution: an SVCard business card also carries a printed QR code, which opens the same page with the camera of any smartphone or tablet. On Android, NFC can be switched on in a few seconds in Settings.
3. The screen must be on and unlocked
For security, most phones do not read NFC cards when the screen is off or locked. Someone holding a phone in standby may think the card does not work.
Solution: simply wake and unlock the screen before bringing the card close. When you hand over your card, you can mention it in a few words: most people get it right the first time.
4. Metal and thick cases
The NFC magnetic field is disrupted by metal: a metal case, a magnetic card holder or a metal surface under the card can prevent reading. A very thick case also moves the card away from the antenna.
Solution: remove the case for the test if needed. Metal NFC business cards, for their part, are designed so that the chip stays readable despite the card’s metal.
5. A small memory
A business card NFC chip only stores a few hundred bytes: enough for a web address, but not for a photo or a full contact card. Cards that store contact details directly on the chip quickly run out of space, and must be reprogrammed after every change.
Solution: the SVCard holds the address of your online profile. The profile itself can include a photo, a logo, links, social networks and a full contact card, and can be edited at any time from your account, without touching the card.
6. Internet to display an online profile
Reading the chip needs no network, but displaying an online profile needs an internet connection on the phone reading the card.
Solution: almost every phone is permanently connected; otherwise, the address stays in the browser history and the profile opens as soon as the network is back. Once your contact card is saved, it stays on the other person’s phone, even offline.
NFC is still the simplest way to share your details
None of these limitations prevents everyday use of an NFC business card: they only require knowing the right gesture and having a back-up, which the QR code provides.
Despite these limitations, NFC has a decisive advantage: a single gesture, with no app and no typing. Combined with a QR code and an editable online profile, it covers every situation, from trade shows to client meetings.
