G-Sensor™ shock protection
When your notebook drops and the hard drive is jolted, the impact can cause scratching to the hard drive. This could lead to data loss. With G-Sensor™ Shock Protection, a built in 3D acceleration sensor recognizes sudden movements and locks up the hard disk drive (HDD) head to help prevent damage to the hard drive (available on select VAIO notebooks).
Solid State Drive (SSD)
With many moving parts on a traditional hard drive, even small jarring movements from an impact could leave the drive completely unreadable. The storage on a Solid State Drive has no moving parts, making it less prone to physical damage and your data less prone to being lost (available on select VAIO notebooks).