Dell XPS 16 (9640) vs Samsung Galaxy Book4 Ultra
Both laptops deliver premium 16-inch experiences but with distinct strengths. Dell's XPS 16 pairs an Intel Core Ultra 7 155H with a sharp 1920x1200 InfinityEdge display, 500 nits brightness, and impressive 13-hour battery life from a 99.5Wh cell. Samsung's Galaxy Book4 Ultra counters with a more powerful Core Ultra 9 185H, doubling storage to 1TB, and featuring a vibrant 120Hz Dynamic AMOLED 2X touchscreen at 2880x1800—though at 400 nits and a smaller 76Wh battery. Build quality favors Samsung's sleeker 1.86kg aluminum chassis over Dell's 2.13kg aluminum/carbon fiber design. Port selection leans Samsung with dual USB-C, HDMI, USB-A, and SD card versus Dell's three Thunderbolt 3 ports. For productivity and battery endurance, the XPS 16 offers better value and practicality. Samsung excels if you prioritize processing power, display quality for creative work, and touch capability—justifying its $500 premium for those needs.
Full Specifications
| Spec | Dell XPS 16 (9640) | Samsung Galaxy Book4 Ultra |
|---|---|---|
| Software | Windows 11 Home | Windows 11 Home |
| Body | ||
| Weight | 2.13 kg | 1.86 kg |
| Material | CNC aluminum and carbon fiber | Aluminum |
| Dimensions | 358.1 x 240.1 x 18.7 mm | 355.4 x 250.4 x 16.5 mm |
| Ports | ||
| SD card | ||
| Thunderbolt ports | 3 | 2 |
| HDMI | — | 1 |
| USB-A ports | — | 1 |
| USB-C ports | — | 2 |
| Battery | ||
| Battery life | Up to 13 hours mixed use | Up to 13 hours |
| Capacity | 99.5 Wh | 76 Wh |
| Display | ||
| Size | 16.3 inches | 16 inches |
| Type | InfinityEdge IPS non-touch | Dynamic AMOLED 2X touchscreen |
| Resolution | 1920 x 1200 | 2880 x 1800 |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 500 | 400 |
| Storage | ||
| SSD | 512 GB NVMe | 1 TB |
| Expandable storage | ||
| Keyboard | ||
| Backlit | ||
| Processor | ||
| RAM | 16 GB LPDDR5x | 16 GB LPDDR5X |
| Cores | 16-core (6P+8E+2LPE) | 16 cores |
| Chipset | Intel Core Ultra 7 155H | Intel Core Ultra 9 185H |
Category Scores
Pros & Cons
Dell XPS 16 (9640)
Pros
- Premium CNC aluminum chassis with edge-to-edge keyboard
- Optional 4K OLED touch display available
- Powerful Core Ultra and RTX 4050-4070 GPU options
- Large 99.5 Wh battery
- Three Thunderbolt 4 ports
Cons
- No USB-A, HDMI, or SD card slot
- Capacitive touch function row is divisive
- Invisible haptic trackpad takes adjustment
- Heavy and runs hot under load
- Mediocre battery life with discrete GPU
Samsung Galaxy Book4 Ultra
Pros
- Stunning 3K AMOLED 120Hz display with deep colors
- Includes NVIDIA RTX 4050 or 4070 discrete GPU
- Surprisingly thin and light for a 16-inch with dGPU
- Tight integration with Samsung Galaxy ecosystem
Cons
- Premium pricing rivals workstation laptops
- Soldered RAM, only storage is upgradable
- Speakers underwhelming versus MacBook competitors
- Touchpad palm rejection occasionally inconsistent
Related Comparisons
Explore more in laptops, see all Dell products or all Samsung products. View full details for the Dell XPS 16 (9640) or the Samsung Galaxy Book4 Ultra.

