Images published on Twitter by @VenyaGeskin1 of what he says are iPhone 8 clones based on an early prototype.

The clones appear to show a home button and/or Touch ID sensor located on the back of the device.

A cutout for a vertically-oriented dual lens camera system.

The case shown here supports the rumor that the iPhone 8 will have an overall footprint similar to the iPhone 7 but a display that's comparable to the iPhone 7 Plus.

Olixar has begun taking orders for its iPhone 8 case. Though manufacturers regularly get the specs wrong, this milestone may be a signal that Apple has locked down its final design.

Another view of Olixar's iPhone 8 case, in red.

These certainly look like parts of a forthcoming iPhone 8. 

On the left, purported iPhone 8 components. On the right, what's said to be the front panel of the iPhone 7S and rear panel of the iPhone 7S Plus, respectively.

According to Benjamin Geskin, this image shows molds of the forthcoming lineup -- with the alleged iPhone 7S Plus on top, the iPhone 8 in the middle and the iPhone 7S on the bottom.

Geskin's image reportedly of an iPhone 8 mold with what appears to be a vertically-arranged dual lens camera.

The view from the bottom of the possible iPhone 8, iPhone 7S and 7S Plus.

The side view of the reported iPhone 8, which appears to have an elongated power button, sandwiched between the iPhone 7S and 7S Plus.

New images published by @OnLeaks purport to be factory CAD drawings of the iPhone 8, showing a rumored new stainless steel and glass design.

The iPhone 8 may feature multiple lenses arranged vertically. No sign of the home button here, though, despite rumors that it may be located on the rear of the phone.

A number of reports suggest that the iPhone 8 will feature sensors that can support AR and, perhaps, facial recognition authentication.

Another image published by Slashleaks showing a vertical camera array and documentation that appears to suggest that the iPhone 8 may come equipped with Ion-X glass.

Benjamin Geskin's renderings of the iPhone 8 based on a series of rumors about the next iPhone's specs.

Another "leaded" image of an iPhone 8, showing a curved display along with a glass and stainless steel body.

Designer Gabor Balogh imagines how popular applications might look on what he calls the iPhone X.

Rumors suggest that augmented reality might come to the next iPhone. Here, Balogh conceives of how Siri might give directions in the future.

Apple could equip the iPhone 8 with a front-facing camera system equipped with an infrared transmitter and receiver.

A comparison of the iPhone 7 and iPhone X concept.

Japanese blog Mac Otakara has published renders that show an iPhone with an edge-t0-edge display and a dual lens camera in a vertical configuration.

Another view of an iPhone 8 featuring an edge-t0-edge display and vertical dual lens camera published by Japanese blog Mac Otakara.

Slashleaks has published a purported image of the iPhone 8 with the home button on the back.

Another technical drawing of the purported iPhone 8 with what looks like a home button and/or Touch ID punch-out on the back.

Another purported "leaked" image of the iPhone 8, showing what could be a circular wireless charging pad.

A technical drawing and render of the iPhone 8 showing a narrow bezel, edge-to-edge display and embedded Touch ID sensor.

Handy Abo Vergleich's beautiful concept illustration brings to life all of the most compelling iPhone 8 rumors.

Big league optical capabilities with dual lens cameras for shooting 16MP photos and 4K video.

Rumors about a zero bezel, edge-to-edge display have been loud and persistent.

Apple may provide new ways to unlock your iPhone including a "virtual" 3D Touch home button and iris scanner.

Handy Abo Vergleich shows an iPhone 8 made of glass and stainless steel, though there are rumors about a lower-end model made of aluminum alloy.

With the headphone jack a distant memory, will Apple continue to experiment with new connectivity options like USB-C?

Handy Abo Vergleich imagines an enormous 5.8-inch "Pro" model of the iPhone 8, equipped with Apple's Pencil stylus.

The wireless charging rumors are gaining momentum ahead of the iPhone 8's expected fall 2017 debut.