UDI released the second version of the popular U818A and it is the all new U49 by Force1. The U49C is the standard model and the U49W is the WiFi FPV version. Both have HD cameras and a handful of nice features. Check them out.
Learn more about them: https://www.halfchrome.com/force1-u49c/
Buy a Red Heron: http://amzn.to/2wwdYRX
Buy a Blue Heron: http://amzn.to/2iTtdPO