ASUS VivoBook 15 (2023) vs Lenovo Legion 9i 16"
The Verdict
These laptops occupy entirely different market segments and use cases. The ASUS VivoBook 15 is a practical ultrabook for everyday computing, weighing 1.7 kg with a 15.6-inch 1080p display and delivering solid battery life up to 8 hours thanks to its efficient 10-core Intel i5-1335U and 42 Wh battery. The Lenovo Legion 9i 16 inch is a premium gaming and workstation powerhouse with a 16-inch mini-LED display boasting 3200 x 2000 resolution, 1200 nits brightness, and a blistering 240Hz refresh rate. It pairs a 24-core Intel i9-14900HX with 32 GB DDR5 RAM and dual 1 TB NVMe slots, making it ideal for demanding creative work and competitive gaming. Performance gaps are substantial: the Legion crushes the ASUS in CPU cores (24 vs 10), RAM (32 GB vs 8 GB), and display quality metrics. Battery life favors the VivoBook at 8 hours versus 6 hours on the Legion, though the Legion's larger 99.99 Wh capacity reflects its power requirements. Build quality differs noticeably, with the Legion's CNC aluminum chassis outclassing the VivoBook's plastic body. The $3000 price difference is justified only if you need gaming or professional-grade performance. For students, office workers, or casual users, the VivoBook delivers exceptional value at $499. For creators and gamers, the Legion is the obvious choice despite its premium cost.
Who Should Buy
Buy the ASUS VivoBook 15 (2023) if…
- →Affordable at $499 with a solid i5-1335U processor
- →512 GB SSD provides decent storage out of the box
- →Lightweight at 1.7 kg for a 15.6-inch laptop
Buy the Lenovo Legion 9i 16" if…
- →RTX 4090 Laptop GPU delivers desktop-class gaming performance
- →240Hz Mini-LED display with 1200-nit HDR is stunning for gaming
- →Integrated liquid cooling system keeps temps and noise impressively low
Category Scores
Pros & Cons
ASUS VivoBook 15 (2023)
Pros
- Affordable at $499 with a solid i5-1335U processor
- 512 GB SSD provides decent storage out of the box
- Lightweight at 1.7 kg for a 15.6-inch laptop
- ErgoLift hinge design improves typing ergonomics
- Expandable storage via M.2 slot
Cons
- 60Hz display feels outdated
- 42 Wh battery provides mediocre endurance
- 300-nit brightness is dim for outdoor or bright room use
- 8 GB soldered RAM is not upgradeable on some models
- Plastic build feels basic
Lenovo Legion 9i 16"
Pros
- RTX 4090 Laptop GPU delivers desktop-class gaming performance
- 240Hz Mini-LED display with 1200-nit HDR is stunning for gaming
- Integrated liquid cooling system keeps temps and noise impressively low
- 99.99 Wh battery is the maximum legal limit for flights
- Premium CNC aluminum build feels genuinely luxurious
Cons
- Extremely expensive at $3,499 even for a flagship gaming laptop
- Heavy at 5.56 lbs — not portable for daily carry
- 6-hour battery life means the charger is always needed
- Thunderbolt 4 limited to one port
Full Specifications
| Spec | ASUS VivoBook 15 (2023) | Lenovo Legion 9i 16" |
|---|---|---|
| Software | Windows 11 Home | Windows 11 Pro |
| Body | ||
| Weight | 1.7 kg | 5.56 lbs (2.52 kg) |
| Material | Plastic chassis with metal lid | CNC aluminum |
| Dimensions | 359.7 x 232.5 x 17.9 mm | 14.24 x 10.28 x 0.78 inches |
| Ports | ||
| HDMI | 1 | |
| USB-A ports | 2 | 1 |
| USB-C ports | 1 | 2 |
| Headphone Jack | — | |
| SD card | — | |
| Thunderbolt ports | — | 1 |
| Battery | ||
| Battery life | Up to 8 hours | Up to 6 hours |
| Capacity | 42 Wh | 99.99 Wh |
| Display | ||
| Size | 15.6 inches | 16 inches |
| Type | IPS LCD | Mini-LED IPS |
| Resolution | 1920 x 1080 | 3200 x 2000 |
| Refresh rate | 60Hz | 240Hz |
| Brightness (nits) | 300 | 1200 |
| Storage | ||
| SSD | 512 GB PCIe NVMe | 1 TB PCIe Gen 4 NVMe (dual slot) |
| Expandable storage | ||
| Keyboard | ||
| Backlit | ||
| Processor | ||
| RAM | 8 GB DDR4 | 32 GB DDR5 |
| Cores | 10-core (2P + 8E) | 24 cores (8P + 16E) |
| Chipset | 13th Gen Intel Core i5-1335U | Intel Core i9-14900HX |
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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.
Explore more in laptops, see all ASUS products or all Lenovo products. View full details for the ASUS VivoBook 15 (2023) or the Lenovo Legion 9i 16".
