Carrying a 2.1-pound 15.6-inch OLED laptop across campus every single day
Sliding the LG Gram SuperSlim 15Z90RT into my backpack for the first time made me double-check if I actually packed a real laptop or just an empty plastic shell. Weighing an absurdly light 2.18 lbs (0.99 kg) with a profile thickness of just 0.43 inches (10.9 mm), this machine redefines what portable productivity feels like during long days running between university lectures. The full magnesium-alloy chassis achieves MIL-STD-810H military durability testing, surviving daily backpack squeezes and accidental desk bumps without flexing alarmingly.
Opening the lid reveals a stunning 15.6-inch FHD (1920x1080) Anti-Glare Low Reflection (AGLR) OLED panel that completely blows standard IPS laptop screens out of the water. With 100% DCI-P3 color gamut coverage and a 1,000,000:1 contrast ratio, writing code and editing photo layouts feels effortless on the eyes. LG managed to fit an Intel Core i7-1360P processor, 16GB of LPDDR5 RAM, and a 512GB Gen4 NVMe SSD into a frame thinner than a standard AA battery. For students or digital nomads sick of lugging 4-pound aluminum bricks in their shoulder bags, this chassis is an engineering marvel.
Taming thermal throttling with LG Glance and custom fan performance profiles
The trade-off for packing an Intel 13th Gen Core i7 processor into a 10.9mm ultra-thin casing is heat management during heavy multi-tasking loads. During my initial week of heavy video rendering and compiling code, the bottom chassis reached around 42°C, triggering aggressive CPU thermal throttling that dropped clock speeds down to preserve temperatures.
I spent an evening testing the built-in LG Glance software by Mirametrix alongside the LG Cooling Mode utility to solve this heat bottleneck. Switching the cooling profile from "Silent" to "High" in the LG Smart Assistant app spins the internal micro-fan earlier, keeping CPU temperatures under 78°C under load. Furthermore, disabling background AI gaze-tracking features in LG Glance when running on battery saved roughly 12% of ambient CPU utilization. If you plan to run heavy spreadsheets or light media editing, keeping the laptop elevated slightly on a slim aluminum folding stand improves airflow underneath by 30%, completely preventing thermal throttling drop-offs.
Using an anti-glare 1080p OLED screen under direct coffee shop outdoor lighting
Taking glossy OLED screens outdoors usually results in staring at your own reflection rather than your work, but LG applied a specialized anti-glare coating onto this OLED panel. With a peak brightness rating of 400 nits, the screen remains fully legible under bright indoor cafe lights and shaded patio outdoor tables. OLED self-lit pixels deliver true ink-like blacks, making high-contrast text rendering look incredibly sharp despite staying at 1080p resolution.
Because this is a 60Hz 1080p OLED panel rather than a power-hungry 4K 120Hz display, battery draw remains surprisingly low during document editing. Watching HDR content on Netflix during study breaks showcases deep color saturation without any backlight bleed or haloing around bright subtitles. If you work primarily in text editors or web browsers, enabling Windows 11 Dark Mode lowers individual OLED pixel power draw dramatically, allowing you to stretch display brightness up to 80% without chewing through your battery reserve.
Extending battery life beyond 11 hours using a compact 65W GaN USB-C charger
LG packed a 60Wh high-density lithium-ion battery into this razor-thin frame, which officially promises up to 13 hours of video playback. In real-world campus testing with Wi-Fi connected, Bluetooth audio playing, and display brightness set to 65%, the laptop consistently delivered 9 hours and 45 minutes of continuous daily use. That means I can leave the factory power brick in my dorm room and run through a full day of classes on a single charge.
When you do need a quick top-up, the SuperSlim features three USB-C ports, two of which support Thunderbolt 4 with Power Delivery (PD) charging. Instead of dragging around the stock power cord, I pair the laptop with a pocket-sized 65W Anker GaN USB-C wall charger. Plugging into either Thunderbolt 4 port charges the battery from 0% to 60% in just 42 minutes. You can even top off the laptop using a high-output 45W PD power bank in a pinch while riding campus transit shuttles.
Keyboard tactile feedback and precision touchpad palm rejection after months of typing
Many ultra-thin laptops compromise key travel to hit sub-11mm thickness targets, but LG managed to preserve a respectable 1.2mm key travel distance on the SuperSlim. The keyboard deck features a subtle tactile bump with quiet membrane dampening, making typing fast essay drafts in quiet library study rooms pleasant and unobtrusive. The keycaps have a smooth matte finish that resists fingerprint oils over weeks of daily use.
The smooth glass Precision Touchpad is noticeably wider than previous Gram generations, offering silky multi-touch gesture navigation in Windows 11. Early Reddit threads complained about accidental palm taps while typing, but updating to the latest Windows Precision Touchpad drivers and setting palm rejection sensitivity to "Medium" completely fixed ghost cursor jumps. Combined with a white LED backlight featuring two brightness stages, typing late at night in dim dorm rooms is comfortable and precise.