The new cameras and camcorders have wifi - this enables you to wirelessly view what the camera sees and control it wirelessly (zoom, change settings, snap or shoot video) on your Android phone or tablet (Apple too) more than 200 ft away. Great for wildlife (birds, etc.). Plus, like a cell phone camera, one can share the pictures/videos easily on those phones/tablets (every family member has one, right?) so the whole family can see instantly what you took without all gathering around the camera. It's not essential, you can turn it off, but it seems a useful addition.