title: Bluetooth Low Energy vs NFC
body: <p>Does Bluetooth Low Energy also does the authentication as NFC, ( I mean, do we need to explicitly key in the password, or it does something auto authentication ) and transfers the data.</p>
  
  <p>Can BLE can be a threat to the NFC.
  What are the difference between the two? </p>
  
  <p>Here I have listed few differences which I know  </p>
  
  <p>BLE/ NFC :   </p>
  
  <ul>
  <li>Speed on which it communicates(fast/slow), </li>
  <li>protocol ISO, Setup time(fast/slow), </li>
  <li>power consumption (depends), </li>
  <li>Security (good/Better)</li>
  </ul>
  
  <hr>
  
  <p>Does Bluetooth and BLE are two different hardware, or just the BT hardware behaves as BLE with specific libraries and protocol?</p>