The DJI CrystalSKy lag is supposed to be 180ms but how close are the next closest devices? What is the lag in ms of the iPad mini 4?
How to find out:
Point your drone at a screen that shows a digital clock with milleseconds
connect to the drone using DJI go
use a second device to take a picture that includes the clock that the drone is pointed at and the screen of the device that is connected to the drone. The image will have two clocks in it.
lvl.3