Tablets and phones were not made for drone viewing, period.I would take the crystal sky but I think the price is pretty steep. I would like to know if the screen is as bright as they claim it is in direct sunlight. One of my biggest complaints with my setup now is screen glare. I have a sunshield that only works marginally and I crank up my brightness all the way on my ipad.
The Crystal Sky is awesome and worth it.
The goggles are illegal anyway. Illegal to use that is.