Motorola's Moto X+1 smartphone has leaked online in a series of official-looking photographs, according to Digital Spy.

Reliable tipster Evleaks posted the images on Twitter, revealing a device with a similar design to the original Moto X.

The display now fills the front on the device, a design feature reminiscent of the LG G3, and there appears to be a ring encircling the rear camera.

Furthermore, the speakers found on the Moto E smartphone have apparently made the jump to the flagship device.

Previous reports suggest that the Moto X+1 will feature a 5.2-inch 1920 x 1080 pixel resolution display, a Qualcomm Snapdragon 800 quad-core processor, and a 12-megapixel rear camera.

Motorola is expected to announce the device at a press conference on September 4.