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ZDNET’s key takeaways
- Lenovo unveiled a modular proof of concept ThinkBook at Mobile World Congress 2026.
- It features a detachable dual screen and keyboard, and swappable ports.
- While it’s still in development, it feels like Lenovo is close to a completed product.
Lenovo has been flexing some serious conceptual muscle with its proof of concept PCs. Last year, I tested the ThinkBook Plus Gen 6 rollable and found it’s 17-inch rollable screen surprisingly practical — if not perfectly polished.
Also: Best of MWC 2026: We found the biggest news from Lenovo, Xiaomi, Honor, more
Now at Mobile World Congress, Lenovo just unveiled a concept that’s even more ambitious: the ThinkBook Modular AI PC, a dual-screen laptop with a detachable display, keyboard, and mix-and-match I/O ports for a fully customizable workstation that shapeshifts into a number of configurations.
Lenovo has been inching toward a truly modular laptop over the last few years, but this model might be the most serious commitment to the idea yet with a mainstream 14-inch laptop that feels surprisingly close to a complete product, even if there are still some kinks to work out.
Detach and swap
Kerry Wan/ZDNET
By default, the laptop’s second display lives on the back of the main display, but it can be snapped off to either take the place of the keyboard or stand propped up next to the laptop like a standalone portable monitor.
If you want to use it as a standalone external monitor, there’s a built-in kickstand on the back that allows for the monitor to be propped up, either in landscape or portrait mode. Just keep in mind, however, you have to keep it connected with a USB-C cable to the laptop itself.
Also: Lenovo’s new PCs offer a glimpse of the future – and it’s modular
In my hands-on with the kickstand, I found it a little awkward and hard to maneuver, and is one of the weaker physical elements of the laptop’s design, but also likely one of the easiest for engineers to improve on.
Similarly, keyboard/trackpad is also fully detachable and can be positioned anywhere, using Bluetooth to stay connected. It’s similar to the design we saw with on the Zenbook Duo — easy to use but a little awkward to freeform the placement on your desk. I still wish there was some sort of snap-to mechanism that attached it to the bottom of the laptop.
Modular I/O
Kerry Wan/ZDNET
Although the swappable displays and keyboard is cool, personally I found the most interesting thing to be the swappable ports, which speak to a level of modularity that we haven’t yet seen on Lenovo’s mainstream laptop line. Only the Framework laptops (the 16-inch being one of my favorite laptops of last year) have this kind of swap-and-go I/O, so it’s notable in a ThinkBook.
Whereas the Framework’s ports are plastic modular ports that all connect via integrated USB-C connections, however, the ThinkBook’s I/O are not. Also the type of port is more limited, with USB-C, USB-A, and HDMI only available so far.
Also: I tried Lenovo’s $3,000 rollable ThinkBook and can’t go back to regular-sized laptops
Still, being able to pop out the port and swap sides if you need an HDMI to be on the right or charger on the left, is infinitely convenient and speaks to a more flexible device concept.
The ThinkBook Modular AI PC is a big step in an exciting direction, and although it’s a conceptual device with no release date, it feels like Lenovo is onto something here. After all, it’s just a ThinkBook chassis here with some specialized adjustments for the form factor.
Kerry Wan/ZDNET
Lenovo made an indirect statement on its commitment to taking modularity and repairability seriously with the ThinkPad X1 Carbon Gen 14 Aura Edition from CES. That laptop saw a redesigned, double-sided motherboard to improve access and part replacement for the end user, and on a flagship laptop lineup no less.
Following up with that, I’m hopeful Lenovo will continue to iterate on these ideas and put them into mainstream laptops like ThinkPads and Yogas. There’s certainly consumer interest.
