Comment Re:Optical zoom? Or fixed telephoto? (Score 1) 88
No, it's a real zoom lens with elements that move in and out.
The trick is that the camera sensor isn't the one at the back, it's the little square below it housing a mirror. If you hold the phone in portrait mode, the camera sensor is actually looking sideways, so the lens elements can move left and right inside the phone, and the mirror makes it so it can see out the back.
The elements obviously move to focus, but I don't see any indication the lens zooms. The image on the story page only indicates "5X Telephoto Lens (125mm) f3.4", which seems to indicate a fixed 125mm lens.