This is a great feature that lets you use touch focus on an Android or iOS smartphone, using the Samsung Smart Camera App, to focus the NX1 remotely over the camera's WiFi. It's great for one person shoots where you are the only one shooting video and being on camera talent.
Note: Video shot with Samsung #NX1 in AUTO mode. Buy on Amazon.com (affiliate link):
Disclosure: Samsung supplied the Samsung NX1 28.2 MP Wireless SMART Mirrorless Digital Camera with 16-50mm f/2.0-2.8 "S" Lens to me on loan to play with and requested a short write-up and/or photos shared with the #NX1 hashtag.