LG gram 15.6" 15Z90T-H.ADB6U1 Black 2024

The LG gram 15Z90T is an absurdly light 15.6-inch laptop with strong productivity performance and great port selection. But the dim 150-nit display and poor reliability scores hold it back. It's a niche pick for weight-obsessed travelers who can live with a mediocre screen.

The Core Ultra 7 255H is a strong performer for this class of machine. In our database, it lands in the 85th percentile for CPU performance, which puts it well above average and makes it a standout for a thin-and-light. You're looking at snappy compile times, smooth multitasking with dozens of browser tabs, and enough headroom for light video editing. The 32GB of DDR5 RAM (81st percentile) means you won't be hitting swap anytime soon, and the 1TB PCIe 4.0 SSD (also 81st percentile) is fast and spacious. For developers, this is a sweet spot.

The integrated Intel Arc 140T graphics are a mixed bag. They're in the 64th percentile overall, which is solid for integrated graphics but won't set any records. You can handle photo editing and some light 3D work, but don't expect to game on this. Our gaming score for this config is a brutal 19.9 out of 100. That's one of the worst we've seen for gaming, so keep your expectations in check. This is a work machine, not a play machine. The 60Hz display doesn't help either, but for coding and documents, it's perfectly fine.

The LG gram's biggest rival is the Samsung Galaxy Book5 Pro. Both are featherweight 15-16 inch laptops aimed at productivity, but the Samsung packs a gorgeous OLED panel that makes the LG's display look like a relic. If you do any photo or video work, the Samsung is the clear winner. On the Windows gaming side, the ASUS ROG Zephyrus G14 is heavier but offers a dedicated GPU and a much better screen for a similar price, though you sacrifice the big display and some portability. The Lenovo Legion Pro 7i is a desktop replacement beast, not really in the same category, but it shows what you can get if you're willing to carry a few extra pounds. And the Apple MacBook Pro M4 Pro is the elephant in the room: it's heavier and pricier, but the screen, speakers, and battery life are in a different league. The LG gram's only real trump card is its weight. If that's your number one priority, it wins. Otherwise, there are better options.

At around $1,547, the LG gram 15Z90T sits in a weird spot. You're getting a ton of RAM, a fast CPU, and an impossibly light chassis. But that dim display and the questionable reliability score (10th percentile, which is one of the worst we've seen) make it hard to recommend without reservations. The Samsung Galaxy Book5 Pro gives you a much better OLED screen in a similar weight class, and the Apple MacBook Pro M4 Pro absolutely demolishes it in display quality and build, though at a higher price. If you can live with the screen and you prioritize weight above all else, the value is there. But most people will find better all-arounders for the money.

The LG gram 15Z90T is one of those laptops that feels like it's breaking the rules of physics. At just 2.84 pounds, it's shockingly light for a 15.6-inch machine. You pick it up and immediately wonder if the box is empty. But inside, you've got a 16-core Intel Core Ultra 7 255H, 32GB of RAM, and a 1TB SSD. That's a serious productivity setup in a package you can carry with two fingers. If you're a developer or someone who lives on the road and needs a big screen without the back pain, this thing is basically a dream spec sheet.

LG markets this as an Intel Evo laptop, which means it's supposed to wake instantly, have solid battery life, and charge fast. The 72Wh battery paired with that efficient Core Ultra chip should get you through a full workday. And the port selection is genuinely good: two USB-C with Thunderbolt 4, two USB-A, and a full-size HDMI. You won't need a dongle for your monitor or your old flash drive, which is more than I can say for a lot of ultrabooks in this price range.

But there's a catch, and it's a big one. The display. LG's specs say 1920x1200 with 99% DCI-P3, but at least one buyer has already reported receiving a unit with a standard 1920x1080 panel. That's a pretty significant discrepancy, especially for creative work. And even if you get the 1200p version, the 150-nit brightness is a real head-scratcher. In 2025, 150 nits is dim. Like, 'can't see your screen near a window' dim. For a laptop that's otherwise built for portability, that's a frustrating limitation.

Skip the LG gram 15 if you care about screen quality at all. The 150-nit brightness and 60Hz refresh rate are dealbreakers for photo editors, video watchers, or anyone who works near a window. Gamers should also look elsewhere, this thing can barely run Minesweeper at high settings. If you want a light laptop with a great display, the Samsung Galaxy Book5 Pro is a much better choice. And if reliability is a top concern, the 10th percentile score here is a red flag, so consider a MacBook Air or a ThinkPad instead.

The LG gram 15Z90T is a laptop of extremes. It's one of the lightest 15-inch laptops you can buy, and the performance specs are genuinely impressive for the size. The keyboard is comfortable, the port selection is practical, and the battery should last all day. For a traveling developer or writer who just needs a big screen and a fast CPU, it's a compelling package.

But that display is a dealbreaker for a lot of people. 150 nits is dim enough to be annoying in any room with natural light, and the confusion over the resolution doesn't inspire confidence. The reliability score from our database is also concerning. If you're willing to gamble on the panel and you treat your gear gently, you'll love the portability. For everyone else, I'd say wait for a sale or look at the Samsung Galaxy Book5 Pro instead.