Sony’s next-generation Xperia flagships will offer lateral power buttons that double as fingerprint scanners — if this hazy new leaked image of the Xperia Z5 and Z5 Compact proves to be authentic.

Both devices already showed their faces in another image posted to Twitter a couple of days ago, and now another photo provides a better look at the profiles. Neither handheld is particularly slim, although the Z5 Compact does make the “full-sized” Z5 seem fairly svelte.

The placement of the volume rocker appears somewhat awkward, especially on the Compact, as a fingerprint sensor takes the more natural position on the edge of the two phones. The security-enhancing feature (don’t call it a gimmick) will take advantage of Android M’s native fingerprint support when the update arrives this fall.

Besides the fingerprint scanner, and presumably fresh internals, we don’t expect the Z5 and Z5 Compact to adopt any new technologies, with USB Type C connectivity apparently left out. An ample 4 GB of RAM is likely on the cards, however, as is a massive 4,500 mAh battery.

Too bad Qualcomm’s new Snapdragon 820 chipset won’t be ready for prime-time this fall.

Samsung is pretty much confirmed to snub next month’s IFA trade show and instead unveil the Galaxy Note 5 and S6 Edge+ early to better contend with Apple’s iPhone 6s threat. That leaves Sony as the only Android-specialized headliner of September’s event — so it has a chance to shine with these devices.

• Source@vizileaks