Sony decided to sort it's Vaio products in three individual lines.
Versatile Performance - for people who need 'flexibility and power with no compromise' :),
Ultra Portable - for someone who travel, and neds a mobile device,
Multimedia Powerhouse - for gaming, creating media or just enjoying entertainment.
Each line contains product from main series.
At this moment there are seven series of Sony Vaio Laptops:
VAIO® UX Series - ultra small Micro PCs with 4.5” Screen Size
VAIO® TZ Series - very small and stlish notebooks with 11.1” Screen Size
VAIO® SZ Series - ultra portable with 13.3” Screen Size
VAIO® CR Series - with 14.1” Screen Size
VAIO® FZ Series - most common with 15.4” Screen Size
VAIO® NR Series - powerfull notebooks with 15.4” Screen Size
VAIO® AR Series - Multimedia Powerhouse witn big 17” Screen Size