I wish you could upgrade the display, but this low-cost two-in-one business laptop lets you add more RAM and a second SSD ...

Maybe so with the Lenovo ThinkPad X1 Carbon 4th generation ... Intel HD 520 integrated graphics. HDMI 1.4 and mini DisplayPort 1.2. Battery: 4 cell, 52 Whr Lithium Ion rechargeable, sealed inside.

Lenovo -- which pioneered the convertible laptop concept with its Yoga consumer 2-in-1s -- recently came out with an updated third-generation model of the ThinkPad ... 4 for durability. The X1 ...