To scan an NFC tag, bring your unlocked phone close to the tag with the screen on. The method for how to scan NFC tags differs between iPhone and Android, and understanding each platform’s specific requirements is the key to a successful scan.
How to scan NFC tags on iPhone
Apple’s NFC scanning is proximity-based and requires no manual toggle. On supported iPhones, the system automatically looks for nearby compatible tags whenever the screen is illuminated. iPhone 7 and later have NFC capabilities for scanning tags. Background tag reading is available on iPhone XS, iPhone XS Max, and iPhone XR, and works after the phone has been unlocked at least once after boot, while the display is on. The system processes only the first discovered URL record in an NDEF message, and that URL must be a valid Apple Universal Link URL to route to an app. Background reading does not work when a Core NFC reader session is in progress, Wallet or Apple Pay is in use, the camera is in use, or Airplane Mode is enabled. For devices that do not support background reading, apps should support in-app tag reading instead.
How to scan NFC tags on Android
Android’s official documentation for NFC tag scanning focuses on an app allow list path. The setting is located under Settings > Apps > Special app access > Launch via NFC. This means the experience of scanning an NFC tag on Android depends on the specific phone manufacturer and any pre-installed or third-party apps that handle NFC reading. Some devices require a quick tap, while others may require a sustained hold to recognize the tag.
What to do when an NFC tag won’t scan
- Ensure the screen is on and unlocked. Many devices require the screen to be active for NFC scanning to work.
- Bring the phone within close proximity of the tag. The tag does not need to touch the device, but should be within a few centimeters.
- Verify the tag is NDEF-formatted with a valid URL record for iPhone background reading. Background reading on iPhone only processes the first discovered URL record, and that URL must be a valid Apple Universal Link URL.
- Confirm no conflicting services are active. On iPhone, background reading is paused when Wallet, Apple Pay, the camera, or Airplane Mode is in use, or when a Core NFC reader session is in progress.
- Check that the tag is compatible with your device. Some older or non-standard tags may not be recognized.
- Check if there are any software updates available for your device, as they may include improvements for NFC scanning.
Frequently Asked Questions
Do iPhones need an NFC setting?
No. NFC scanning on iPhone works automatically by proximity when the screen is on and the phone has been unlocked.
Which iPhones support background reading?
Apple documents background tag reading support for iPhone XS, iPhone XS Max, and iPhone XR. Other iPhone models may require an app to scan NFC tags.
Can NFC tags be scanned from a distance?
Apple states the iPhone only needs to be in close proximity to the tag, not touching it. The ideal distance is usually a few centimeters.
What tags work with background reading on iPhone?
Compatible tags must be NDEF formatted and include a URL record.
What else can NFC tags be used for?
NFC tags can be used for smart home automation and access control.
For the wider topic, see NFC tags and readers explained.
