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(Pocket-lint) - The Apple iPad mini 4 may have leaked online in a video showing off the new tablet's casing.

The iPad mini 4 housing video appeared from serial leakster @upleaks. He claims the leak comes from one of his most reliable sources.

Apple unveiled the iPad mini 3 last year in October so we're not expecting to see the iPad mini 4 anytime soon. But this should be start of the leaks that lead up to the unveiling of Apple's latest mini tablet.

Differences that can be spotted from this new housing include the omission of the lock switch, two rows of ten speaker holes rather than four of fourteen, along with a more iPad Air 2 look about the shape. That brushed metal frame and slim edging appears in typical Apple style that's now to be expected.

The size of the Apple iPad mini 4 was not shared but according to the source that information will follow soon. The iPad mini 3 is a 7.9-inch device with 329ppi resolution, fingerprint reader, A7 processor, 5-megapixel iSight camera and iOS 8 operating system. Expect similar, especially for sizing, with improved specs for the iPad mini 4.

Also expect to see more leaks as the iPad mini 4 goes through its various stages of production where more opportunities to leak appear.

READ: Best iPad mini cases: Protect your 7.9-inch Apple tablet

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Writing by Luke Edwards.