XK X150W 720p Optical Flow Drone

XK X150W is a 720p 1mp drone that transmits video to a smartphone so you can frame your video/shots over wifi and record it to a MicroSD card. The XK X150 doesn't have GPS to hold its position -- but it doesn't need it! It includes an optical flow sensor which takes images of the ground and uses those to keep it locked in a column.
The Optical Flow (OF) technology on this drone works well especially in well lit area over grass no higher than 8m in altitude. But the video range is short (30m-50m) as to be expected with wifi. Be very careful with taking it too far out and in windy conditions or you could lose it.
The biggest cons of this drone are the proprietary battery, and lack of available spare parts at this time. But XK is a good manufacturer and parts will be hitting vendor sites soon. I'll include a link to those when available.
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