NFC and Bluetooth are both short range radios, but they trade distance for effort. NFC runs at 13.56 MHz over a few centimetres with no pairing, so a single tap starts an action. Bluetooth, and especially Bluetooth Low Energy, reaches tens of metres, holds a connection, and drives beacons, audio, and accessories at low power. Use NFC for an instant, deliberate touch, and Bluetooth when you need range or a continuous link.
What each one is built for
NFC trades range for certainty. Because it works only across a few centimetres, presence itself is the signal, so there is no pairing step. Bringing a phone to a target is deliberate and unambiguous, which is why NFC carries payments, transit, and tap to pair. The interaction is momentary: it happens on the tap and then it is done.
Bluetooth trades that certainty for reach. Bluetooth Low Energy reaches tens of metres, holds a connection, and runs for a long time on a small battery, which is why it underpins beacons, wearables, audio, and background presence per the Bluetooth SIG. It pairs or connects first, because at range you have to confirm which devices should talk, and it can keep acting without a deliberate gesture.
Parousya's patented method can sense both. Bluetooth is often the detection layer where range is needed, and NFC is the layer for a close tap, but neither radio is the point. The method adds the server in the middle: it identifies the nearest correct provider and routes the transaction through a central server, so the two devices never connect directly. That architecture is covered by US10657515B2 and the divisional US11392923B2.
Side by side
| Dimension | NFC | Bluetooth |
|---|---|---|
| Range | A few centimetres | Up to tens of metres |
| Setup | No pairing, a tap starts it | Pairs or connects, then stays linked |
| Connection | Momentary, per tap | Continuous while in range |
| Power | Very low, passive targets need none | Low, Bluetooth Low Energy is built for battery devices |
| Typical uses | Payments, transit, tap to pair | Audio, accessories, beacons, presence |
| Data rate | Small payloads | Higher throughput, streams audio and data |
| Intent | Explicit, a deliberate tap | Can act in the background |
| Standards body | NFC Forum | Bluetooth SIG |
Choose Bluetooth (BLE) when
- You need range, from across a desk to across a room.
- A continuous connection matters, for audio, sensors, or accessories.
- You are building beacons or background presence detection.
Choose the proximity method when
- The interaction should be a single, deliberate tap.
- You want no pairing step and instant action.
- The job is a payment, a transit fare, or quick pairing.
Common questions
- Is NFC or Bluetooth better?
- It depends on distance and intent. NFC is instant and deliberate but works only over a few centimetres. Bluetooth reaches tens of metres and holds a connection, at the cost of pairing and a little more power. Neither replaces the other.
- Why does NFC not need pairing?
- Because its range is a few centimetres, presence itself is the signal. Bringing two NFC devices together is unambiguous, so no pairing step is needed. Bluetooth works at range, so it pairs to confirm which devices should talk.
- What is Bluetooth Low Energy used for?
- Low power, intermittent communication: beacons, sensors, wearables, and presence detection. It reaches tens of metres on a small battery, which is why it underpins most indoor proximity beacons per the Bluetooth SIG.
- Where does Parousya's proximity method fit?
- Bluetooth and NFC are both transports its patented method can sense, alongside ultra wideband and WiFi Direct. The method does not compete with either radio. It adds the server in the middle that identifies the nearest correct provider and routes the transaction, per US10657515B2 and the divisional US11392923B2, so the devices never connect directly.