Mobile leaker Steve Hemmerstoffer this morning shared a hands-on video featuring alleged dummy units of the upcoming 6.5-inch iPhone X Plus and 6.1-inch LCD iPhone, just two days after rival leaker Ben Geskin posted images of two similar-looking dummy units.

The video, provided by Tigermobiles.com , offers a clearer view size-wise of the two new Face ID-equipped all-screen models, which are expected to accompany a second-generation iPhone X in Apple's 2018 smartphone line-up , due to launch in the fall.

Besides size, the clearest differentiator between the two handsets is the dual-lens rear camera on the iPhone X Plus and the single-lens on the 6.1-inch LCD iPhone. Both lenses clearly protrude from the back of the chassis.

Both models in the video feature a shiny silver frame, although Geskin's images depicted a frame on the 6.5-inch device that better matched the body color, similar to the current-generation iPhone X. Apple is thought to be using a steel frame on the larger device and an aluminum frame on the 6.1-inch iPhone as a cost-saving measure. Less clear on the video are the larger bezels on the 6.1-inch device to accommodate the lower-spec LCD display.

The dummy units used here both have white backs; well-connected Apple analyst Ming-Chi Kuo believes the next-generation iPhone X models will be available in Black, White, and Gold, while the 6.1-inch model could come in a wide array of colors, including red, blue, orange, gray, and white.

Dummy units are typically based on design schematics leaked from Apple's supply chain in China, and these handsets tally with the rumors we've heard already, but we'll have to wait for Apple's official iPhone launch in September or thereabouts for the full story on the new smartphones' full feature set.