Lenovo ThinkPad X220 and X220 convertible tablet official, 24 hours of battery life promised

Come on, you knew this one was coming! Yep, that leaked Lenovo ThinkPad X220 with all its SSD and display options is now the real deal, and it's one heck of an ultraportable. Just as we saw from that spec sheet, the new 12.5-inch (up from the 12.1-inch X201) laptop is configurable with that 1366x768-resolution IPS display, your choice of standard voltage Sandy Bridge Core i3, i5, and i7 processors, and up to 8GB of DDR3 RAM. There are no discrete graphics options, but you can opt to configure this one with USB 3.0 and a selection SSDs, including Intel's 80GB and 160GB offerings. The 720p webcam, dual digital microphones for noise cancellation, and the new buttonless touchpad (aka ClickPad) come standard. However, the real story Lenovo's trying to tell here is in battery life -- with the nine-cell battery the system is rated for 15 hours of endurance, but snap on the $179 ThinkPad external pack and it shoots on up to 24 hours. 

Thought Lenovo was going to leave the X Series tablet out in the cold without a refresh? Of course not, the X220T also sips from that same fresh Sandy Bridge well, though it doesn't claim that same 24 hour battery life feat -- the four-pound convertible is rated for 16 hours of run time when paired with the external pack. Oh, and did we mention that the multitouch screen is now available with Gorilla Glass? The X220 and the X220T start at $899 and $1,199, respectively, but won't actually be available until April. That said, our Core i5-2520M X220 and its extended battery just arrived in our "lab" so stay tuned for a full review with lots of endurance testing.

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