LG Gram SuperSlim vs Samsung Galaxy Book4 Pro
The Verdict
Both ultraportables share identical processors and RAM, but diverge significantly in display and battery technology. LG Gram SuperSlim weighs just 2.18 lbs with a 15.6-inch OLED panel at 1920x1080, delivering exceptional thinness (0.43 inches) and magnesium construction. Samsung Galaxy Book4 Pro counters with a larger 16-inch Dynamic AMOLED 2X display at 2880x1800 resolution and 120Hz refresh rate, plus superior battery life (15 hours vs 12 hours) and a larger 76 Wh capacity. Samsung includes practical SD card and dual USB-A ports, while LG focuses on aggressive minimalism. At $250 less, Samsung offers better value with superior productivity screen real estate and connectivity options. For creators and professionals, Samsung's display advantage and battery longevity justify the lower price. LG suits those prioritizing portability above all else.
Who Should Buy
Buy the LG Gram SuperSlim if…
- →Under 1 kg — the lightest 15.6-inch laptop you can buy
- →15.6-inch OLED display in an impossibly thin 0.43-inch chassis
- →Thunderbolt 4 and HDMI in such a thin form factor is impressive
Buy the Samsung Galaxy Book4 Pro if…
- →Gorgeous Dynamic AMOLED 2X display with vivid color
- →Slim 12.5 mm profile for a 16-inch laptop
- →Excellent Samsung ecosystem integration with Galaxy devices
Category Scores
Pros & Cons
LG Gram SuperSlim
Pros
- Under 1 kg — the lightest 15.6-inch laptop you can buy
- 15.6-inch OLED display in an impossibly thin 0.43-inch chassis
- Thunderbolt 4 and HDMI in such a thin form factor is impressive
- 12-hour battery life despite the razor-thin build
- MIL-STD-810H durability tested despite the low weight
Cons
- FHD resolution on 15.6 inches — should be 2.5K at this price
- Very expensive at $1,699 for the specs
- No USB-A ports — dongles needed for legacy peripherals
- 60Hz display — no high refresh option
Samsung Galaxy Book4 Pro
Pros
- Gorgeous Dynamic AMOLED 2X display with vivid color
- Slim 12.5 mm profile for a 16-inch laptop
- Excellent Samsung ecosystem integration with Galaxy devices
- Good port selection including SD card and HDMI
- Up to 15-hour battery life is class-leading
Cons
- No discrete GPU option on this model
- RAM and SSD are soldered — no upgrade path
- Samsung DeX for PC still limited in scope
- AMOLED display may develop burn-in over time
- Higher price than similarly-specced Windows ultrabooks
Full Specifications
| Spec | LG Gram SuperSlim | Samsung Galaxy Book4 Pro |
|---|---|---|
| Software | Windows 11 Home | Windows 11 Home |
| Body | ||
| Weight | 2.18 lbs (0.99 kg) | 1.55 kg |
| Material | Magnesium alloy | Aluminum |
| Dimensions | 14.09 x 9.61 x 0.43 inches | 355.4 x 227.9 x 12.5 mm |
| Ports | ||
| HDMI | 1 | |
| USB-C ports | 2 | 1 |
| Thunderbolt ports | 2 | 2 |
| USB-A ports | — | 2 |
| SD card | — | |
| Battery | ||
| Battery life | Up to 12 hours | Up to 15 hours mixed use |
| Capacity | 60 Wh | 76 Wh |
| Display | ||
| Size | 15.6 inches | 16.0 inches |
| Type | OLED | Dynamic AMOLED 2X |
| Resolution | 1920 x 1080 | 2880 x 1800 |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 400 | 500 |
| Storage | ||
| SSD | 512 GB PCIe Gen 4 NVMe | 512 GB NVMe |
| Expandable storage | ||
| Keyboard | ||
| Backlit | ||
| Touch Bar | — | |
| Processor | ||
| RAM | 16 GB LPDDR5X | 16 GB LPDDR5x |
| Cores | 16 cores (6P + 8E + 2LPE) | 16-core (6P+8E+2LPE) |
| Chipset | Intel Core Ultra 7 155H | Intel Core Ultra 7 155H |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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