Three wildly different types of smart glasses are arriving in the next three months. I had Gemini display them side by side in the above picture so you can see how different they are. Wait, you can’t tell them apart? Ha ha I’m a kidder! They all look just like sunglasses. You understand that’s the point, right? The developers hope their normal appearance is a big reason that smart glasses take off. Make no mistake, though, they really are very different from each other. Each one has its own niche and each is packed with a unique collection of circuits, lenses, microphones, speakers, sensors,…