A point to note - just before Christmas the CAA (Civil Aviation Authority - the body which oversees aviation licensing and legislation in the UK) released their intention to change the current commercial / recreational licensing arrangements in place for drone use. Part of this is that any drone which has an integral camera - except those which are obviously just toys - will need to be registered from 1st July 2020, regardless of weight; so including the 249g one now on the market. You may want to look at an article on the Heliguy website that explores this in more detail.
This is, however, based on national adherence to current European legislation, so potentially may change depending upon all things political between now and then!