Starting at just 2.877 lbs., the new X1 Carbon is the lightest 14 in Ultrabook on the planet. And at just 0.70in thin, it's the thinnest ThinkPad ever. The X1 Carbon now features Samsung PCIe SSD options for the best storage experience. The X1 Carbon delivers up to 10.9 hours of battery life on a single charge. And if you do run low, don't fret: with Rapid Charge technology you get 80% battery restored in just under an hour. Constructed with satellite-grade carbon fiber, the new X1 Carbon is the toughest ThinkPad ever made. In fact, we perform nearly a dozen separate military-grade specification tests-all under extreme conditions with dust, vibration, heat, cold, altitude, water, humidity, solar radiation, and fungus-so you can laugh in the face of spills, drops, heat exposure, or anything else life throws your way.