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What is Near field communication (NFC) in Mobile ?

Near field communication (NFC) is the set of protocols that enables smartphones and other devices to establish radio communication with each other by touching the devices together or bringing them into proximity to a distance of typically 10 cm (3.9 in) or less.

Guess what ? Xiaomi has NFC tags manufactured. Which are basically stickers that you can program to do something when your phone reads the NFC . Read along to find more about NFC.


At its core, all NFC is doing is identifying us, and our bank account, to a computer. The technology is simple. It's a short-range, low power wireless link evolved from radio-frequency identification (RFID) tech that can transfer small amounts of data between two devices held a few centimeters from each other.

Unlike Bluetooth, no pairing code is needed, and because it's very low power, no battery in the device being read. By tapping your phone on a contactless payment terminal in a shop, train station or coffee shop is able to identify your account (and even your personal preferences, shopping habits and even your most frequently travelled route home) and takes payment through an app on your phone.

Android Pay


There are two modes:


SpeedActive devicePassive device
424 kbit/sMan, 10% ASKMan, 10% ASK
212 kbit/sMan, 10% ASKMan, 10% ASK

  • NFC employs two different codings to transfer data. If an active device transfers data at 106 kbit/s, a modified Miller codingwith 100% modulation is used. In all other cases Manchester coding is used with a modulation ratio of 10%.


AspectNFCBluetoothBluetooth Low Energy
Tag requires powerNoYesYes
Cost of Tag$0.10 USD$5.00 USD$5.00 USD
RFID compatibleISO 18000-3activeactive
Standardisation bodyISO/IECBluetooth SIGBluetooth SIG
Network StandardISO 13157 etc.IEEE 802.15.1IEEE 802.15.1
Network TypePoint-to-pointWPANWPAN
Cryptographynot with RFIDavailableavailable
Frequency13.56 MHz2.4–2.5 GHz2.4–2.5 GHz
Bit rate424 kbit/s2.1 Mbit/s1 Mbit/s

Which Xiaomi Phones Support NFC ?

Xiaomi Mi3
Xiaomi 2A
Future on NFC !

Wearable Technology is growing.And so comes implants -

The xNTi NFC implant tag for Humans

NFC has also been embedded in jewellery and even temporary tattoos that unlocks your phone !.

Here is a Video of NFC on Xiaomi 2A

NFC Forum

Sources : WikiPedia ,techradar 
DigitalTrends , Google Images , Youtube

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