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LG Gram SuperSlim 15 Laptop

Processor:

Cosmetic Condition:

Functionality:

Charger Included?

The LG Gram SuperSlim 15 arrived in 2023 as LG's thinnest 15-inch laptop to date, and LG kept it current through 2024 and 2025 by swapping in newer Intel processors without changing the chassis. It was built for people who wanted a full-size 15.6-inch screen without the weight of a typical 15-inch laptop: frequent flyers, students, and anyone who resents carrying a heavy bag. You'll see it listed under model numbers like 15Z90ST-G.AAW4U1 and 15Z90ST-V.APB6U1, depending on which processor generation it shipped with. It still holds resale value because that combination of a 15-inch WQXGA display and a sub-three-pound body is genuinely rare, and because LG kept updating the internals instead of letting the line go stale. Pick your processor and condition in the tool above for an instant cash offer, or see how the process works if you want the details first. If this turns out not to be your exact machine, our sell your LG laptop page covers the rest of the lineup.

Confirm you have the LG Gram SuperSlim 15

The fastest way to confirm your model is to look at the sticker on the underside of the laptop, near the regulatory markings. It lists the full model number. If the sticker has worn off, press Windows key + R, type msinfo32, and press Enter. The System Model field will show the same string and tell you whether you have the earlier 13th Gen Core i7 build or the newer Core Ultra refresh.

15Z90ST-G.AAW4U1

  • Intel Core i7 13th Gen processor
  • Intel Iris Xe integrated graphics
  • Sold under the "G" suffix, 2023–2024 production

15Z90ST-V.APB6U1

  • Intel Core Ultra 5 or Core Ultra 7 Series 1 processor
  • Intel Arc integrated graphics
  • Sold under the "V" suffix, 2024–2025 production

Prefer a visual check? The lid is noticeably thinner than any other LG Gram, thin enough that it flexes slightly under light pressure. There is no USB-A port anywhere on the frame. The hinge sits nearly flush with the base rather than standing up as a separate block.

Core hardware configurations

Processor

  • Intel Core i7 13th Gen
  • Intel Core Ultra 5 Series 1
  • Intel Core Ultra 7 Series 1

Graphics

  • Intel Iris Xe (13th Gen i7 configurations)
  • Intel Arc integrated graphics (Core Ultra configurations)

Memory

  • 16GB LPDDR5, soldered to the board
  • Not upgradable after purchase

Storage

  • Single M.2 2280 PCIe SSD slot
  • Capacity varies by original configuration

The processor tier moves resale value the most on this line. A Core Ultra 7 build with Arc graphics and an NPU for on-device AI tasks brings a stronger offer than a 13th Gen i7 unit, all else equal, since it's the newer platform.

Display & audio

Display

15.6-inch WQXGA (2560×1600) IPS panel in a 16:10 aspect ratio, with an anti-glare coating. The taller aspect ratio gives more vertical room for documents and browsing than a standard 16:9 laptop screen.

Audio

Built-in stereo speakers handle calls and streaming clearly but stay light on bass, a common trade-off in a chassis this thin.

Security

A fingerprint reader is built into the power button for Windows Hello sign-in.

Ports & connectivity

LG kept the port count deliberately minimal to hit the SuperSlim's thickness target. If you rely on USB-A devices or a card reader, plan on a dongle.

Wired
  • Thunderbolt 4 (x2)
  • USB-C 3.2
  • HDMI
  • 3.5mm headphone/mic combo jack
Wireless
  • Wi-Fi 6E
  • Bluetooth 5.3

Thunderbolt 4 16:10 WQXGA display Fingerprint power button Wi-Fi 6E Under 3 lbs Magnesium alloy shell Core Ultra option Soldered 16GB RAM

Battery, build & more

Battery

Sealed lithium-polymer pack, not user-replaceable. Rated runtime varies with which processor is installed, since the 13th Gen and Core Ultra builds draw power differently.

Dimensions & weight

Falls in the 2.5 to 2.7 pound range depending on configuration, among the lightest 15-inch laptops sold, with a lid that's thinner than the rest of the Gram lineup.

Finishes

Ships in a single dark finish on a magnesium alloy body. Unlike some other Gram models, there isn't a colorway choice here.

Software

Runs Windows 11 with LG's own control center app for battery mode, fingerprint enrollment, and driver updates.

Known issues

Single-fan cooling can throttle performance under sustained heavy load, and the thin lid flexes more than a typical laptop under pressure. Neither is a defect specific to one unit; both are documented trade-offs of the design.

Market positioning

Positioned as LG's flagship ultra-portable, competing with premium ultralights rather than mainstream 15-inch laptops.

Frequently asked questions

01 How do I find the model number or exact configuration?
Check the sticker on the underside of the laptop, which lists the full model number. If it's worn away, press Windows key + R, type msinfo32, and press Enter to see the System Model field, or run dxdiag for a quicker snapshot that includes the processor name. Either method will tell you whether you have the 13th Gen Core i7 build or a Core Ultra Series 1 refresh, which is the detail that matters most for your quote. If you can't find either, our model finder tool can help you narrow it down from photos and specs.
02 How do I tell it apart from the standard LG Gram 15?
Weight and thickness are the giveaways. The SuperSlim 15 is noticeably thinner and lighter than the standard Gram 15, and it drops USB-A entirely in favor of Thunderbolt 4 and USB-C only. The standard Gram 15 keeps at least one USB-A port and a microSD reader, features the SuperSlim skips to hit its thickness target. If your unit has any USB-A port, you have the standard Gram 15, not the SuperSlim, and it belongs on a different listing.
03 Can I sell it with damage, a weak battery, or an account lock?
Yes, in most cases. A cracked screen, a battery that no longer holds a charge, or a unit that won't power on can still be sold; the quote simply adjusts to reflect the condition. The one requirement we can't work around is a Microsoft account lock: the laptop must be signed out of any linked Microsoft account, and BitLocker should be suspended, before you ship it. A locked device that can't be verified as yours can't be processed for payment.
04 What raises the trade-in value the most?
A working screen and battery matter most, since both are expensive to repair on this chassis and heavily affect grading. After that, having the original charger included helps, since LG's SuperSlim charger is a specific compact brick rather than a generic USB-C charger. A Core Ultra configuration typically grades a bit higher than a 13th Gen i7 unit at the same cosmetic condition, simply because it's the newer platform.
05 How do I erase it and get paid?
Go to Settings → System → Recovery → Reset this PC, and choose to remove everything. Before that finishes, sign in to your Microsoft account online and remove this device from your account list, and suspend BitLocker if it's enabled so the reset isn't blocked. Once the laptop shows a clean setup screen, it's ready to ship. Shipping is free and insured, and payment goes out after testing by PayPal, Venmo, Zelle, CashApp, or check. Full step-by-step guidance, including what to do if the reset won't complete, is in our data erasure protocols.