It can not fly for 8 min on 650mAh battery. At least not with a weight of 85g. Not a brushed motor with a direct drive propeller.
4K video encondig and simultaneously processing a 720P video stream over WiFi requires a lot of processing power, this would require a lot of current from battery and flight time would be even more limited.
Look at the “stable” flying demonstration of this drone. Not even near to the GPS or baro assisted flight:
A video demonstrating some video supposedly shot with drone, but it looks like made with phone camera while holding it by hand and, of course, not a 4K:
Some indoor flight footage:
As you can see – no real sample of on board camera recording. Why? – think yourself.
UPDATE 2017-04-13: Kudrone posted another “testing” video with so called “2.7K@30FPS” video. It was shot with some device, clearly not the drone and the resolution is only 1080P.
Why it may be real deal?
Kudrone released video showing some fab with manufacturing process. Some shots include molding process of kudrone plastic frame. Other shots show some flight controller assembly works.
Lets look at the still shot of the main board (flight controller). We can see the top side of the controller where we find four mosfets for driving four brushed motors, posssibly a gyro on the top part and a baromether chip. So at least this drone should have altitude hold feature. No GPS or sonar sensors seen. Unfortunately we dont have any pictures of the lower part of the main board so it is unclear what main CPU it uses.
My verdict so far (2017-04-12): While this Kudrone drone can be actualy produced, it will no way have all declared features. There is no way to have 8 min flight time with 85g of weight. There is no possibility that this drone can do 4K 30fps video and of course no 720P livestream. No way to have “Precision vision positioning”. Most likely no GPS also. Withour these features this drone would be worth not more than $50.
Update 2017-09-26: Buers start to receive their little drones. And so far we can see only a few unboxing videos on Youtube. Look at the one user’s video below – terribly shaky actual flight footage (descending on the 2:30):
Another user is protecting himself with a towel from the unexpected Kudrone drone behavior. Very funny (or sad) 🙂