Here is a brief description of the different model types of Lenovo laptops:

R Series
Cost-effective enterprise productivity. The best blend of productivity, mobility, security and performance - keeping TCO
low and productivity in the forefront. From $800

SL Series
Built for small business. An ideal mix of performance, wireless and multimedia features - at prices right for small business. From $700

T Series
Premier performance. The perfect balance of performance and portability. From $1150

X Series
Thinnest and lightest. Ultimate portability and battery life for mobile users - including the new, ultra - functional Thinkpad X300. From $1150.