There may not be a better full-fledged business ultraportable than the ThinkPad X230, but more efficient, less expensive, and thinner ultrabooks are the real future of this category.
Lenovo ThinkPad X230 review - The Verge
Lenovo ThinkPad X230 Series - External Reviews
Lenovo ThinkPad X230-NZA5NRT - External Reviews
Lenovo ThinkPad X230 - CNET
Lenovo ThinkPad X230 review - The Verge
Lenovo ThinkPad X230 review
Lenovo ThinkPad X230 review: Lenovo ThinkPad X230 - CNET
Lenovo ThinkPad X230 review: Lenovo ThinkPad X230 - CNET
Lenovo ThinkPad X230 - External Reviews
Lenovo ThinkPad X230 i5-3320M 2.60GHz 4GB RAM 320GB HDD Win 10 Pro (Used)
Rugged PC Review.com - Rugged Tablet PCs: Lenovo ThinkPad X230 Tablet
Review: Lenovo ThinkPad X230