Lenovo’s ThinkPad T14s is in its fourth generation for 2023, and it remains a top business laptop for mobile productivity. In my ThinkPad T14s (2023) review, I noted that it’s “ideal for those who need a workhorse business laptop that’s easier to carry on flights or back and forth between the home and office.” Although the RAM is soldered and cannot be upgraded after purchase, ​​​​​​its M.2 PCIe NVMe SSD is accessible for DIY upgrades.