Galaxy Gear VR
Recently bought this to try out and take back but ended up keeping it. This is the future of technology no doubt. If you get the chance grab one of these. The possibilities are endless. Only cons of the first version are phone gets real hot and lenses get fogged. Other than that this thing is dope.
Imagine the Magic School bus shrinking down and going through the blood vessels and your actually on board the bus. This will be the future of technology and education no doubt in my mind. INVEST.