How does NFC technology build on existing technologies? How does it establish a wireless communication between two devices? What is NFC's working distance? Does it allow data transfer? If it does, how fast is the data transfer rate of NFC in comparison to Bluetooth? What are the latest smartphones that currently use NFC technology?
NFC is short for Near Field Communication. It is a standard for smartphones that allows the to establish radio communication with each other just by touching them or by bringing them into their proximity.
NFC is a low speed connection with a simple setup and be used to bootstrap more wireless connections that are capable. For example, NFC is used in Android devices to pair two Bluetooth connections when doing a file transfer. Or the NFC can be used to pair Bluetooth headsets, media players and other NFC-enabled devices.It can also be used in social networking, like sharing files, contacts, images and many more.
When using NFC, its speeds are extremely slow compared to the latest Bluetooth standard, NFC having a bit rate of 424 kbit.s and Bluetooth reaching 2.1 Mbit/s, but it must also be mentioned the fact that the power consumption when NFC is enabled on the device is also very low, at about 15mA, while Bluetooth service consumption reaches over 40mA, depending on the class.
The best smartphone enabled for NFC services is the LG G3, although expensive, it offers the complete smartphone package. With the new Android 4.4 KitKat operating system it has GPS navigation, HD Playback, Replaceable Battery and also other features like Additional Display Support, Ambient Light sensor, Proximity sensor and a 5.5 inch IPS LCD screen at a resolution of 2560×1440 pixels. For wireless connectivity, it supports 3G and 4G speeds, Bluetooth 4.0, Mobile Hotspot Tethering and also NFC and Wi-Fi.
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