The Sony Xperia Honami is rumored to have a relatively big 1/2.3" 20.7MP image sensor as well as a 28mm, F/2.0 Sony G lens, but we've only seen one camera sample. A few more have leaked, but unlike the first one, these were shot at 8MP resolution.
The first sample was shot with an Xperia Honami running software 13.1.G.1.443_9.b600, while the new samples seem to have been taken with a newer firmware, 14.1.G.2.86_9_f200. That said, the software is most likely not final yet.
The photos were shot at 16:9 aspect ratio rather than the native 4:3, but that doesn’t completely explain the 8MP resolution.