10 Already Existing Gadgets Straight from Sci-Fi Books

3. Augmented Contact Lenses
Have you heard of Google Glass? Yes, this is basically the same concept but smaller, faster and more awesome. Imagine looking for por- ehm, I mean funny cat videos undisturbed!

4. Kudrone: 4K Camera Nano-Drone With GPS Auto-Follow
This bad boy with a 4K camera can follow you using GPS. It’s a perfect recon drone.