Bluetooth and NFC are two wireless standards that have been around for more than a decade now. However, they each have their own unique advantages, which means that it’s important to know what they are and how they differ from one another.
What is Bluetooth?
Bluetooth allows data to be exchanged between two or more devices over a short distance. It uses a short-range wireless technology communication standard. Bluetooth mainly works between the 2.4GHz to 2.4835GHz frequency band. It can be divided into 80 individual communication channels. It can upload data packets in any of the 79 designated communication channels.
In 1998, Bluetooth version 1.0 was officially launched to the public, and its maximum transmission speed was only 723.1Kbit/s. Its farthest transmission distance was 10 meters. The early version of Bluetooth 1.0 had many problems but has become a more widespread technical standard. It is suitable for most smart electronic devices. People can initially have these smart devices paired with mobile phones and headphones. It was later developed to pair heart monitors with other medical devices. It allows for simultaneous data processing as well as voice transmission. It allows users to share voice, music, photos, and other information between paired devices.
As the technology continues to evolve, the Bluetooth standard has grown steadily. Bluetooth technology has been in development for over 23 years. It has been upgraded from the original version 1.0 to the latest version, Bluetooth 5.3, which will be released in July 2021. each new release means that features, modes, power options, and communication topologies may have been added or updated.
What is NFC?
NFC is short for Near Field Communication, a subset of RFID. It is a technology that evolved from integrating RFID and interconnection technology. It enables identification with compatible devices over short distances. The NFC chip can achieve more functions when it is built into the smartphone. The smartphone is capable of making small payments. It is also able to read information from other NFC devices or tags.
Bluetooth vs NFC
The biggest difference between Bluetooth and NFC is the maximum range they can each cover. However, they both use short-range wireless communication technology. They differ in transmission and reception capabilities.
The transmission range of NFC is about 4 cm, while Bluetooth is up to 10 meters. There is a huge difference between them. Using Bluetooth as a data transmission device allows you to make transactions at relatively long distances. On the other hand, NFC will only work properly at very close distances. In terms of transmission range, it is clear that Bluetooth vs NFC is the winner.
NFC uses a close-range and low-power communication technology. Its data transfer capability is relatively weak and has a low transmission speed. NFC’s transmission speed is much lower than other wireless technologies, at 400Kbit/s. But since it is mostly used for specific applications, such as contactless payments. It is fast enough to cope today.
Bluetooth can transmit data over a much larger range, meaning it needs more power than NFC. It has a high data transfer speed of over 2 Mbit/s. It is ideal for those who need to handle some relatively large data. People use Bluetooth for data transfer, such as music, images, videos, etc.
NFC connectivity is easy to use without any authentication. By manually turning on the NFC function and approaching other NFC-enabled devices. The data transfer happens instantly.
Bluetooth, however, requires a specific sequential procedure to transfer data with other devices. Usually, the Bluetooth connection requires entering a PIN code and some other configuration settings. It takes more time for the user to pair.
We mentioned earlier that the transmission distance of NFC is very short, which means that it has a higher level of security. It doesn’t have any security measures, including authentication or other verifications. But it requires two devices to be close to communicating, making it difficult for hackers to intercept data in transit. Unless the hacker is right in front of you to intercept it, he shouldn’t be that stupid. It is ideal for most payments and other sensitive/private data transactions.
Bluetooth transmissions are subject to PIN authentication and other security features. But Bluetooth transmission still has major security issues. It is also vulnerable to hacking. The reason is that its transmission range is too large, which allows hackers to find opportunities to exploit it. Hackers can intercept the data you are transmitting from a very long distance.
The comparison of Bluetooth vs NFC shows that Bluetooth has a clear advantage in our daily applications. But in terms of security, NFC is slightly better. Many other commercial giants are using NFC for contactless payments today. They include Huawei Pay, Apple Pay, Samsung Pay, etc.
Bluetooth vs RFID
Accurately locating physical assets is a feature needed in any asset tracking solution. If a business adopts RFID as a tracking technology, additional hardware needs to be added. Businesses can utilize beacon readers to find the location of specific RFID tags. Unlike RFID, Bluetooth tags are location-based solutions. Depending on the strength of the signal, the Bluetooth tag will first transmit the signal to a neighboring relay. The exact location relative to the relay fixed at the specific location is then found.
The BLE tag has more storage space than RFID. It is usually used to store some basic information about the identity asset. Unlike the BLE tag, it also allows the storage of additional information. It cannot only identify information but also provide the location of the item tag and the asset information on hand. Not only that, but it can also provide information about the monitored temperature. It can also provide data from lock-connected sensors. Thus, it is well suited for proximity marketing solutions in shopping centers.
A complete RFID system is carried out through RFID tags, readers, and asset management software. People can connect the reader to the asset management software via Ethernet cable. In BLE, the tag and the relay are connected via Bluetooth and WiF.
RFID is mainly used to transmit a limited amount of information (including product, location, etc.) stored in an RFID tag to an RFID reader. Bluetooth has more functions than RFID functions. It can handle data and voice transmission so people can use it for many applications.
Although Bluetooth belongs to RFID, it still has obvious differences in usage. A complete RFID system requires several different devices to work together to make it up. In most cases, the information it stores is related to the product. This information can be the item’s location, the place of production, and the quantity. It is relatively more suitable for physical asset management. And Bluetooth is quite advantageous in carrying out data processing and voice transmission. Most smartphones nowadays will be equipped with Bluetooth capabilities. Most people will know what Bluetooth is and not much about RFID.
Bluetooth vs NFC vs RFID
Bluetooth vs NFC vs RFID: The Three in Comparison
|Transmission range||Length up to 4 cm||Length up to 10 m||A few centimeters to tens of meters|
|Pairing||No pairing required||Need to pair||No pairing required|
|Power supply||Not required||Must||Active RFID requires power|
Passive RFID does not
Internet of things
|Asset tracking |
|Communication||Two-way communication||One-way communication||Two-way communication for active RFID tags|
One-way communication for passive RFID tags
Bluetooth vs NFC vs RFID is relatively different from each other. But they all have their advantages. If you ask who is more powerful among the three? It’s hard to say who is more powerful than the other because they work in different areas. I think they have improved our standard of living. They allow us to live a better life. So they are both the best helpers in our lives.
More Questions About Bluetooth
Is Bluetooth a Type of RFID?
Our common ones are classic Bluetooth and low-energy Bluetooth. Their technical standards all use RF signals for communication and information exchange. So both can be said to belong to the Radio Frequency Identification (RFID) category. They usually contain a battery and communicate via the 2.4GHz frequency. We can categorize Bluetooth technology as active RFID technology. For uniquely identified devices, objects or assets, they both apply.
Is BLE Access Control More Secure than NFC?
BLE, or Bluetooth Low Energy, is a wireless technology that allows devices to communicate over short distances. While BLE does not require the pairing of devices, it relies on the network’s security to protect data from hackers.
Since Bluetooth requires pairing and NFC does not, the question “Which is more secure?” might come up. It’s a good question, and as with most good questions, the answer is: “it depends.”
Standard NFC is not protected against eavesdropping—the act of a hacker intercepting or modifying data transmitted between two devices. However, applications often use higher-layer cryptographic protocols, a.k.a. higher security tech, to establish a secure channel. Conversely, Bluetooth’s range of up to 100 meters makes it more susceptible to eavesdropping. But BLE is often encrypted, so only authorized parties can view it—which makes it much more secure than NFC if you want to keep your private info safe from prying eyes!