A string of video leaks have sprung, showing off BlackBerry's newest and last bet to create some hype and hold over the market.

CrackBerry has spotted a leak from 4Leakz in YouTube, a one-minute video where you can see that the size is really meant for a phablet rather than a phone, as the BlackBerry Aristo Z30 is meant to be the company's first step into the arena of big screens.

The responsiveness of the phone is also remarkable, and the design of the device has a very different appeal compared to the BlackBerry Z10.

Some specs known

A six-minute video has been leaked from a Vietnamese website, and since then, many variations of the said video have been circulating online. Here is a version from VidxHD, which not only has the original video without the audio, but also some compiled known specs for the BlackBerry Z30.

From what is currently known, the phablet will be sporting a 5-inch 720p display and a dual-core Krait chipset.

Gadgets.NDTV adds that other speculated features include a 1.7 GHz dual-core Qualcomm Snapdragon S4 Plus processor, 2GB of RAM, an 8-megapixel rear with LED flash and a 2-megapixel front camera, and a non-removable 2800 mAh.

Storage capacity is pegged at 16G of internal storage with expandable memory capabilities using a microSD card, much like the BlackBerry Z10. There is also an AT&T logo branding spotted on the device, which shows off where it will assumedly first debut.

Tutorials show off the inside of the BlackBerry Z30

A series of 20- to 30-second tutorials has also been spotted by CrackBerry, from two YouTube users, Kris Simundson and CBBIa1ze.

From Kris Simundson, one video shows off the settings panel and zooms in on the clock system.

The second video shows a bit of the BlackBerry Hub and the icons of the apps.

YouTube user CBBIa1ze's first video shows you how to insert the SIM card into the BlackBerry Z30. Apparently, the tab to open the back cover case is located at the bottom part of the back. Snap this open, and you can see the SIM card slot on the upper right side part of the device.

The other video is a tutorial on the keyboard shortcuts.