A comparison of specs, key information, reviews, and best pricing from top retailers
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Company ProductName Specs
Company ProductName Specs
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
- Good portability
- Best in class speakers
Advantages of the Lenovo Legion Slim 5
- Very good keyboard
Key differences
General Use
8.5
7.8
3840 x 2160
RESOLUTION
2560 x 1600
OLED
DISPLAY TECHNOLOGY
IPS
332.0 nits
DISPLAY BRIGHTNESS
350.0 nits
7.0 Hours
BATTERY LIFE
7.0 Hours
7.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.1/10
PORTABILITY SCORE
6.8/10
The ASUS ZenBook Pro Duo 15 is very good for general use, while the Lenovo Legion Slim 5 is good.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Engineering and Design
9.0
8.3
9.2/10
OVERALL CPU SCORE
9.1/10
7.8/10
OVERALL GPU SCORE
7.3/10
32.0 GB
RAM
16.0 GB
The ASUS ZenBook Pro Duo 15 is excellent for engineering and design, while the Lenovo Legion Slim 5 is very good.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
8.7
7.8
9.2/10
OVERALL CPU SCORE
9.1/10
3840 x 2160
RESOLUTION
2560 x 1600
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 5 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
7.7
9.2/10
OVERALL CPU SCORE
9.1/10
32.0 GB
RAM
16.0 GB
3840 x 2160
RESOLUTION
2560 x 1600
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 5 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
8.0
15.6in
SIZE
16.0in
3840 x 2160
RESOLUTION
2560 x 1600
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 5 for general use, engineering and design, software development, and content creation, while the Lenovo Legion Slim 5 has a better screen for gaming and AI.
PerfectRec’s screen quality scores take into account various important factors that are relevant for different use cases.
Cost
$2,000
$1,450
$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 5 costs $1,450.
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Key similarities
Gaming and AI
7.8
7.7
7.8/10
OVERALL GPU SCORE
7.3/10
3840 x 2160
RESOLUTION
2560 x 1600
60Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.7/10
FAN NOISE SCORE
6.5/10
The ASUS ZenBook Pro Duo 15 and Lenovo Legion Slim 5 are both good for gaming and AI.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Battery
7.0 Hours
7.0 Hours
The ASUS Zenbook Pro Duo 15 has 7 hours of battery life. The Lenovo Legion Slim 5 has 7 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
Fair
15.6in
SIZE
16.0in
5.1 lbs
WEIGHT
5.0 lbs
0.8in
THICKNESS
0.9in
Although they have very similar scores, PerfectRec considers ASUS ZenBook Pro Duo 15 to have good portability, while the Lenovo Legion Slim 5 has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
7.8
The Lenovo Legion Slim 5 and ASUS ZenBook Pro Duo 15 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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How the ASUS ZenBook Pro Duo 15 and the Lenovo Legion Slim 5 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro Duo 15 | Lenovo Legion Slim 5 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $1,450 | ||
Release Date | |||
Release Date | February 1, 2023 | February 1, 2024 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.8'' x 0.85'' | 14.2'' x 10.3'' x 0.99'' | |
Weight | |||
Weight | 5.16 lbs | 5.07 lbs | |
Width | |||
Width | 14.17" | 14.16" | |
Depth | |||
Depth | 9.81" | 10.26" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-12900H | AMD Ryzen 7 7840HS | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 92 Wh | 73.6 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 3840 x 2160 | 2560 x 1600 | |
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 | 7.8/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 6.8/10 | |
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 | 6.5/10 | |
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 | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | No | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 3 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | N/A | |
Shopping
ASUS ZenBook Pro Duo 15
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Dig into reviews and images
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 5
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Dig into reviews and images
PCMag
Mark Knapp | August 2023
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Get a great deal on the ASUS ZenBook Pro Duo 15 or the Lenovo Legion Slim 5
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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This information was produced and vetted by the PerfectRec laptops team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest laptop information and makes it digestible for you.
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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