Lenovo ThinkPad X240 laptop i7-4600U 8GB 256GB SSD 12.5" HD

Business ultrabook for mobile professionals

The Lenovo ThinkPad X240 is a 12.5" business ultrabook built for professionals who need a durable, portable Windows 7 Professional machine. Its carbon-fibre roll cage passes eight MIL-SPEC tests covering pressure, humidity, vibration, temperature extremes, altitude and dust. An Intel Core i7-4600U processor with 4 MB cache and up to 3.3 GHz clock speed drives everyday productivity tasks. The spill-resistant, backlit keyboard supports comfortable typing in low-light conditions.

Thermals, noise and power in normal use

The ultra-low-voltage Core i7-4600U keeps heat output modest during typical office workloads, so the cooling fan runs quietly most of the time. A 256 GB solid-state drive eliminates mechanical drive noise and reduces power draw compared with a traditional hard disk. 8 GB of DDR3 memory supports smooth multitasking without forcing the system into heavy swap activity. Bluetooth 4.0 provides low-energy wireless peripheral connectivity.

12.5" HD IPS display at 1366 x 768

The 12.5 inch HD IPS panel delivers a 1366 x 768 resolution suited to document work and video calls on the move. Buyers who need a higher pixel density for detailed design or multi-window layouts will find the resolution limiting. The non-touch screen omits pen or finger input for annotation-heavy workflows. Only two USB ports are available, so users requiring multiple simultaneous peripherals may need a hub.