The Envy x2 has never been our favorite Windows 8 tablet, but that hasn't stopped HP from selling loads of them. The device has been such a success, in fact, that the company is expanding the x2 series to make room for two follow-on products: the Split x2 (a Windows 8 hybrid) and the SlateBook x2 (an Android tablet). Starting with the Split (pictured above), this is the first time HP's made a laptop / tablet hybrid with a laptop processor inside, though Microsoft and others have of course done this already. In brief, it's a 13-inch slate with a 1,366 x 768 display and your choice of Core i3 or i5 processor (these are Intel's Y-series Ivy Bridge chips we're talking about). As you'd expect, the keyboard dock packs a second battery, though it also makes room for an optional 500GB hard drive to complement the SSD inside the actual tablet. Other specs include two USB ports (one 2.0, one 3.0), HDMI, Beats Audio, WiDi and expansion slots for both microSD and full SD cards.
The SlateBook (shown below) is a 10-inch tablet with a Tegra 4 chip -- one of the first to be announced by any company, in fact. Though it's a companion to the $169 Slate 7, it packs considerably higher-end specs. There's that Tegra 4 SoC, for one, as well as a 1,920 x 1,200, 400-nit IPS display and the latest version of Jelly Bean (4.2.2). As with other dockable tablets, its keyboard has a battery built in. Here, though, the keyboard also includes shortcuts for Google voice search. There's even a laptop-style trackpad supporting multitouch gestures -- a rarity on products like this. The hardware itself weighs about 2.8 pounds in total, with a spec list that includes two USB sockets, stereo speakers and SD / microSD readers. Both products will be available in August, with the Split x2 priced at $800 and the SlateBook x2 going for $480. Now all we need are some battery life claims. In the meantime, check out our hands-on photos below. (Pssst: the Split unit we photographed was just a mockup.)