The Lenovo X1 has a better storage medium than most notebook PCs of a comparable age and type to it. This notebook PC has an SSD storage medium, whereas most portable PCs of a comparable age and type to it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This portable PC's storage medium (SSD) is in fact the best storage medium across all medium processor core laptops that were released more than two years ago.
An HDD storage medium is the worst storage medium across similar types of portable PC.
If the storage medium of this portable PC is not good enough for you then you might also want to consider the DELL XPS 13 (£1,199.99) (SSD).