I asked them if they supported a Note 4. Below is the response.
JAN 22, 2018 | 05:57PM UTC
This mobile device won’t be powerful enough to run Litchi’s latest version correctly.
For Android, our recommended devices are: Nvidia Shield K1, Google Pixel/Pixel XL, Samsung...
Just a quick FYI, the Motorola Moto G 2nd generation phone works very well with DJI Go 2.8.2 and my P3A. I haven't seen Motorola phones on any compatibility lists. I went to a flying site and forgot to cache the map area in my tablet so decided to try the phone and surprisingly it worked...