Is this the HTC One 'mini'?
HTC one mini

Rumours of the a smaller HTC One have been floating around since last month, and now it looks like the device may just be legit. Forte has published images of what appears to be the device, coming in at 4.3-inch device. The device is rumoured to have a 720 display with a dual-core processor, 2GB of RAM, and 16GB of storage. Forte also claims that it will come with a similar 4-megapixel 'UltraPixel' camera as the HTC One.

No information of availability is known, but rumours have suggested that an announcement is due before the end of June.