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Updated January 10, 2024·
If performance for intensive tasks like 3D modeling, machine learning, or gaming is a priority and you're prepared to invest more, the ASUS ZenBook Pro Duo with its high-end specs may be well-suited for you, albeit heavier and less portable. The Lenovo Legion Slim 7, on the other hand, offers a balance between performance and portability, making it a good fit for both gaming and general use without being as bulky, but it may not match the ZenBook's raw power. Battery life will likely be better on the Legion due to its focus on efficiency, so if you're frequently on the move, this can be a significant advantage. Give Feedback
this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the ASUS ZenBook Pro Duo 15
- Very good for general use
- Excellent for engineering and design
- Very good for software development
- Very good for content creation
- Very good overall display quality
- Best in class speakers
Advantages of the Lenovo Legion Slim 7 15.6"
- Very good keyboard
Key differences
General Use
8.5
7.7
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
332.0 nits
DISPLAY BRIGHTNESS
350.0 nits
7.0 Hours
BATTERY LIFE
9.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.1/10
PORTABILITY SCORE
7.6/10
The ASUS ZenBook Pro Duo 15 is very good for general use, while the Lenovo Legion Slim 7 15.6" is good.
The ASUS ZenBook Pro Duo 15 excels in screen quality with a high-resolution OLED touchscreen and powerful CPU and GPU suitable for demanding tasks but is heavier and has shorter battery life, making it less portable compared to the Lenovo Legion Slim 7, which has a lower resolution screen and less RAM but is lighter with longer battery life, thus more portable for on-the-go use.
Engineering and Design
9.0
7.8
9.2/10
OVERALL CPU SCORE
7.4/10
7.8/10
OVERALL GPU SCORE
7.1/10
32.0 GB
RAM
16.0 GB
The ASUS ZenBook Pro Duo 15 is excellent for engineering and design, while the Lenovo Legion Slim 7 15.6" is good.
The ASUS ZenBook Pro Duo 15 outperforms in engineering and design tasks with its higher-end CPU, double the RAM, and a superior GPU compared to the Lenovo Legion Slim 7, along with a higher resolution OLED screen that enhances visual clarity and color accuracy for detailed work.
Content Creation
8.7
7.7
9.2/10
OVERALL CPU SCORE
7.4/10
3840 x 2160
RESOLUTION
1920 x 1080
32.0 GB
RAM
16.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS ZenBook Pro Duo 15 is very good for content creation, while the Lenovo Legion Slim 7 15.6" is good.
PerfectRec’s Content Creation Score takes into account the many different features of the laptop that make it more or less suitable for photo editing, video editing and other content creation tasks.
Software Development
8.3
7.5
9.2/10
OVERALL CPU SCORE
7.4/10
32.0 GB
RAM
16.0 GB
3840 x 2160
RESOLUTION
1920 x 1080
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
The ASUS ZenBook Pro Duo 15 is very good for software development, while the Lenovo Legion Slim 7 15.6" is good.
PerfectRec’s Software Development Score takes into account the many different features of the laptop that make it more or less suitable for software developers.
Screen Quality
8.3
7.7
15.6in
SIZE
15.6in
3840 x 2160
RESOLUTION
1920 x 1080
OLED
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
165Hz
332.0 nits
BRIGHTNESS
350.0 nits
The ASUS Zenbook Pro Duo 15 has a better screen than the Lenovo Legion Slim 7 for general use, engineering and design, software development, and content creation, while the Lenovo Legion Slim 7 has a better screen for gaming and AI.
The ASUS ZenBook Pro Duo 15 boasts superior resolution and brightness, making it excellent for everyday tasks and detailed engineering work due to its color-accurate display which covers a wide range of color gamuts. However, its screen falls short for gaming and 3D applications due to a lower refresh rate, which is crucial for fluid motion in fast-paced environments. The Lenovo Legion Slim, while offering good general-use quality with decent resolution and brightness, also has a good color range for professional design and engineering work, but like the ASUS, it lacks a high refresh rate, diminishing its appeal for gaming and 3D work.
Battery
7.0 Hours
9.0 Hours
The ASUS Zenbook Pro Duo 15 has 7 hours of battery life. The Lenovo Legion Slim 7 has 9 hours of battery life.
Battery life estimate is based on a mix of common use patterns. More portable and higher performing laptops tend to have less battery life.
Portability
Good
Good
15.6in
SIZE
15.6in
5.1 lbs
WEIGHT
4.1 lbs
0.8in
THICKNESS
0.6in
The Lenovo Legion Slim 7 15.6" and ASUS ZenBook Pro Duo 15 both have good portability, though the Lenovo Legion Slim 7 15.6" has somewhat better portability.
The most portable laptops are small, thin, and light.
Cost
$2,000
$1,200
$500
$1,000
$1,500
$2,000
$2,500
$3,000
The ASUS ZenBook Pro Duo 15 has a price of $2,000 and the Lenovo Legion Slim 7 15.6" costs $1,200.
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Key similarities
Gaming and AI
7.8
7.4
7.8/10
OVERALL GPU SCORE
7.1/10
3840 x 2160
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.7/10
FAN NOISE SCORE
7.5/10
The ASUS ZenBook Pro Duo 15 and Lenovo Legion Slim 7 15.6" are both good for gaming and AI.
The ASUS ZenBook Pro Duo 15, with its superior Nvidia RTX 3070 Ti GPU and high-resolution OLED screen, excels in gaming and 3D applications, offering bright and vivid colors with high contrast but has a standard refresh rate. In contrast, the Lenovo Legion Slim 7 features a capable Nvidia RTX 3060 GPU and a higher screen refresh rate which is preferable for competitive gaming, with a good IPS display but at a lower resolution and color accuracy compared to the ASUS.
Build Quality
7.6
7.6
The ASUS ZenBook Pro Duo 15 and Lenovo Legion Slim 7 15.6" both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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We’re constantly working to improve.
How the ASUS ZenBook Pro Duo 15 and the Lenovo Legion Slim 7 15.6" compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro Duo 15 | Lenovo Legion Slim 7 15.6" |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $1,200 | ||
Release Date | |||
Release Date | February 1, 2023 | May 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.8'' x 0.85'' | 14'' x 9.9'' x 0.69'' | |
Weight | |||
Weight | 5.16 lbs | 4.19 lbs | |
Width | |||
Width | 14.17" | 14.02" | |
Depth | |||
Depth | 9.81" | 9.92" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-12900H | AMD Ryzen 7 5800H | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 0 | 1 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 9 Hours | |
Battery Capacity | |||
Battery Capacity | 92 Wh | 71 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 15.6" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 3840 x 2160 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 332 nits | 350 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.8/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 8/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 2 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
ASUS ZenBook Pro Duo 15
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PCWorld
Jared Newman | August 2021
"Benchmarks aside, the Asus ZenBook Pro Duo is hard to compare with other PCs. Its closest competition may be a multi-monitor desktop, or a laptop with an attached travel monitor. The Pro Duo is more portable and versatile than either of those options, especially with the software tools Asus has thrown on top. For a certain niche of artists, media creators, and gamers, all that might add up to something special, even if it’s unattainable for the rest of us."
Lenovo Legion Slim 7 15.6"
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NotebookCheck
Benjamin Herzig | November 2022
"The Lenovo Legion Slim 7 is a slim Legion notebook that is just as excellent with Nvidia & Intel. However, the Legion Slim 7i slightly sullied by lacklustre battery life. You get a slim aluminium chassis, great input devices, decent port selection, fast high-quality WQXGA display and great performance. Supporting Thunderbolt 4 is one advantage of the Intel/Nvidia model tested in this review. Moreover, this variant has slightly higher CPU performance as well as better GPU performance in certain applications (e.g. CUDA-based apps). The Lenovo Legion S7i is thin, premium and performant – but less efficient than its AMD counterpart."
Get a great deal on the ASUS ZenBook Pro Duo 15 or the Lenovo Legion Slim 7 15.6"
About ASUS
ASUS, a Taiwanese electronics brand, is one of the largest personal computer vendor by market share. The majority of their laptops are targeted towards personal use or gaming. Their most popular product lines include the budget-friendly VivoBook, more premium ZenBook, and their TUF and ROG gaming laptops, the latter of which has a reputation for excellent gaming performance.
About Lenovo
Lenovo is a Chinese technology company, and one of the largest personal computer vendor. They are well known for a variety of technology products, including laptops. Their consumer series include their entry level IdeaPad and LOQ series and mid-to-high-end Yoga and Legion series. On the business-oriented side, their series include their entry-level ThinkBook series and mid-to-high-end ThinkPad series. Lenovo laptops offer strong performance for reasonable prices, and are often on sale.
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