ASUS ROG Ally X vs Samsung Galaxy Book4 15"
The Verdict
Comparing these devices reveals fundamentally different purposes despite similar pricing. ASUS ROG Ally X is a handheld gaming PC with a compact 7-inch 1920x1080 120Hz display, AMD Ryzen Z1 Extreme processor, 24GB RAM, and 1TB storage optimized for portable gaming performance. Samsung Galaxy Book4 15 is a traditional ultrabook featuring a 15.6-inch 1920x1080 60Hz display, Intel Core i7-1355U processor, 16GB RAM, and 512GB storage designed for productivity and general computing. Battery life heavily favors gaming scenario, with the Ally X delivering 3-10 hours depending on game intensity versus the Book4's consistent 10 hours for office tasks. Portability strongly favors Ally X at 678g versus Book4's 1.56kg. Performance-wise, the Z1 Extreme dominates gaming, while the i7-1355U handles productivity adequately. Storage capacity advantages the Ally X significantly. Choose Ally X for gaming mobility or Book4 for traditional laptop productivity needs. For most users, the Book4 offers better everyday usability, but serious portable gamers will prefer the Ally X's specialized capabilities.
Who Should Buy
Buy the ASUS ROG Ally X if…
- →Massive 80 Wh battery doubles the Ally's endurance to 3-10 hours
- →24 GB LPDDR5x RAM is generous for gaming and multitasking
- →1 TB SSD is double the original — more room for games
Buy the Samsung Galaxy Book4 15" if…
- →Lightweight at 3.44 lbs with an aluminum build for the price
- →Full-HD display is sufficient for everyday productivity
- →Samsung ecosystem features like Quick Share and Phone Link
Category Scores
Pros & Cons
ASUS ROG Ally X
Pros
- Massive 80 Wh battery doubles the Ally's endurance to 3-10 hours
- 24 GB LPDDR5x RAM is generous for gaming and multitasking
- 1 TB SSD is double the original — more room for games
- Two USB-C ports allow charging while connecting accessories
- Improved ergonomic grips and button layout over original Ally
Cons
- Heavier at 678 g due to the larger battery
- Same Z1 Extreme chip — no generational performance leap
- Removed microSD slot compared to original ROG Ally
- IPS LCD still lacks OLED contrast and HDR capability
- $799 puts it close to full laptop pricing territory
Samsung Galaxy Book4 15"
Pros
- Lightweight at 3.44 lbs with an aluminum build for the price
- Full-HD display is sufficient for everyday productivity
- Samsung ecosystem features like Quick Share and Phone Link
- 10-hour battery life handles a full school or work day
- HDMI port included — avoids dongles for presentations
Cons
- 60Hz FHD display is unremarkable at the $749 price point
- Only one USB-C and one USB-A port is limiting
- Soldered RAM and SSD — zero upgradeability
- No Thunderbolt or high-speed USB-C
- Integrated graphics only — no discrete GPU option
Full Specifications
| Spec | ASUS ROG Ally X | Samsung Galaxy Book4 15" |
|---|---|---|
| Software | Windows 11 | Windows 11 Home |
| Body | ||
| Weight | 678 g | 3.44 lbs (1.56 kg) |
| Material | Plastic chassis with improved ergonomics | Aluminum |
| Dimensions | 280.0 x 114.0 x 36.9 mm | 14.00 x 8.93 x 0.61 inches |
| Ports | ||
| USB-C ports | 2 | 1 |
| Microsd | — | |
| Headphone Jack | — | |
| HDMI | — | |
| USB-A ports | — | 1 |
| SD card | — | |
| Memory | ||
| Storage options | 1 TB PCIe Gen 4 NVMe SSD | — |
| Battery | ||
| Battery life | 3-10 hours (game dependent) | Up to 10 hours |
| Capacity | 80 Wh | 54 Wh |
| Display | ||
| Size | 7 inches | 15.6 inches |
| Type | IPS LCD | IPS anti-glare |
| Resolution | 1920 x 1080 | 1920 x 1080 |
| Refresh rate | 120Hz | 60Hz |
| Brightness (nits) | 500 | 300 |
| Processor | ||
| RAM | 24 GB LPDDR5x (7500 MT/s) | 16 GB LPDDR5 |
| Cores | 8-core CPU, RDNA 3 (12 CUs) integrated GPU | 10 cores (2P + 8E) |
| Chipset | AMD Ryzen Z1 Extreme (Zen 4, 8-core / 16-thread, up to 5.1 GHz) | Intel Core i7-1355U (13th Gen) |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6E | — |
| Bluetooth | 5.2 | — |
| Storage | ||
| SSD | — | 512 GB PCIe Gen 4 NVMe |
| Expandable storage | — | |
| Keyboard | ||
| Backlit | — | |
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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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