Google has published a list of google glass technical specifications.
Google glass specifications:
Adjustable nosepads and durable frame fits any face.
Extra nosepads in two sizes.
High resolution display is the equivalent of a 25 inch high definition screen from eight feet away.
Camera Photos – 5 MP and Videos – 720p
Audio-Bone Conduction Transducer
Wifi – 802.11b/g and Bluetooth
12 GB of usable memory, synced with Google cloud storage. 16 GB Flash total.
One full day of typical use.
Included Micro USB cable and charger.
The MyGlass companion app requires Android 4.0.3 (Ice Cream Sandwich) or higher.
MyGlass enables GPS and SMS messaging.