Credit: Hadlee Simons / Android AuthorityThe Samsung Galaxy Z Fold 7 has just launched, and it’s one of the thinnest foldables yet, while offering a larger folding screen than previous models. As cool as Samsung’s latest Fold is, though, I’ve been spending time with an old alternative to foldable phones, and I’d love Samsung to copy this trick. Yep, I’m talking about LG’s Dual Screen Case.The LG Dual Screen Case was first launched in 2019 for the LG V50, and most subsequent LG flagship phones supported this accessory. The case plugged into your phone’s USB-C port and gave you an FHD+ OLED screen to go with your phone’s display. This enabled a foldable-style experience in some ways for just $200 at the time. That was a fair chunk of change for an accessory, but a far cry from the $1,500+ you’d pay for a brand-new foldable phone back then. So what’s the benefit of this combination?