Mobile phone NFC is not a novel feature. As early as seven or eight years ago when smartphones became popular, NFC became the standard for many flagship phones. Its usage scenarios are mainly as follows:
1. Quickly connect to Bluetooth devices.
Traditional Bluetooth devices need to be connected to a smartphone through a pairing code, which is inconvenient to operate. With the NFC function, the mobile phone and the Bluetooth device can be quickly paired even with a simple touch, and even the mobile phone is not unlocked, which greatly simplifies the connection procedure between the Bluetooth device and the smart phone.
2. Use the tab to switch between profiles.
The NFC tag is a special card with a coil in between, which helps the phone to quickly switch between scenes. For example, you can paste the “Mute” tag on your work, and automatically put it in the silent mode when you put the phone on the title. Similarly, put your phone on the "Bell" tab in your home and the phone will automatically switch to ringing mode. Users can create NFC tags with different functions according to actual needs, and can quickly switch between scene modes without unlocking the phone.
3. Transfer data at close range.
Two NFC-enabled devices can be attached to transfer photos, music, videos, and more. Although NFC's transmission speed is slow, it is not as good as Bluetooth, but it will still be used in some cases.
4. Take public transportation.
NFC's communication standard is very similar to RFID (contactless radio frequency identification), so most bus system readers can recognize mobile phone NFC chips, so smart phones can also replace bus cards, and you can take a bus at the bus or subway station. .
5. Recharge the bus card.
Most NFCs of smart phones support the function of reading and writing. Software such as Alipay can be used as a card writer to write data to the bus card. In this way, you don't have to go to a special recharge point to recharge the bus card.
6, mobile payment.
Similar to the function of the bus card, the NFC chip of the mobile phone can also be recognized by the POS machine of the supermarket and the store. The NFC chip bound to the bank card can replace the bank card and pay the card directly on the POS machine. However, it is necessary to support the POS machine of UnionPay cloud flash to read the NFC chip of the mobile phone. The POS does not have this function when the old card is swiped.
7, analog access control card.
Some third-party apps and Xiaomi's MIUI system can copy the access card to the NFC chip, so that the mobile phone can be used instead of the access card. However, this type of access control card is limited, and the encrypted access card cannot be copied, so there are not many access cards that can be copied to the mobile phone.
In general, Xiaomi's NFC is currently the most complete mobile phone manufacturer with the most complete functions. Like Huawei, Apple also has some flagship models equipped with NFC, but there are not many cities with functions such as brush bus, but Huawei is also increasing its popularity.
Apple has supported the bus card for the first time in the recently updated iOS 11.3, but only two cities have more cities to support in the exposed iOS 11.4. The above is the most commonly used scenes of the NFC function of the mobile phone. In fact, the most practical NFC is to take the bus as a bus card or replace the bank card. If the demand for this is not very large, whether the mobile phone has NFC function does not affect the daily use experience.