https://www.cnet.com/news/lenovo-joins-the-49-inch-monitor-club-at-ces-2019/

Lenovo's twists: a small connection hub in the front that pops down with a push to accommodate two USB-A devices and a headphone jack, and a removable speaker that's designed to encircle the base of the stand (shown in the top photo). The hub is especially convenient to pop down when you need to quickly copy some files from a USB drive.

Otherwise, their specs are the same. To wit: