Surface Pro to Have Half the Battery Life of Surface RT

Microsoft's official Twitter account for Surface delivered a gut punch to potential Surface Pro shoppers by confirming that battery life on the x86 tablet will be less than that of its ARM-based Surface RT slates. Much less.

"Hey Shahroom, #Surface Pro will have approximately half the battery life of Surface RT," @Surface tweeted on Thursday, in response to a question about battery life.

That's not a total shocker, considering Surface Pro is a much more powerful tablet. It's essentially a full blown notebook in a tablet form factor, with all the compatibility to run Windows 7 applications. It has a 10.6-inch screen with a Full HD 1080p (1920x1080) resolution, Intel Core i5 processor, a full-size USB 3.0 port, and a Mini DisplayPort than can beam images up to 2560x1440 to an external display.

Microsoft Surface Pro

There will be two versions of Surface Pro at launch, one that starts at $899 with 64GB of internal storage, and another that runs $999 for 128GB. Both of these are standalone slates -- you can purchase a Touch Cover or Type Cover separately.

At those price points, and with half the battery life of Surface RT, Microsoft may have a tough time taking the tablet market by storm with Surface Pro. Not only that, but Microsoft's going to be competing with Ultrabooks that are less expensive, just as powerful, and last longer.