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Updated January 10, 2024·
The ASUS ZenBook Pro Duo 15 offers superior performance for intensive tasks, thanks to its powerful processor and high-end graphics card; it's ideal for 3D rendering, machine learning, and demanding engineering applications. Its OLED screen also provides high color accuracy, making it suitable for color-sensitive work. However, the Lenovo Flex 5 14 is more portable due to its lighter weight and longer battery life, which might be better for everyday use and general tasks. The Flex 5 is also significantly less expensive, so if cost is a concern and your tasks aren't as demanding, it could be a better option. 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
- Good for gaming and AI
- Very good for software development
- Very good for content creation
- Very good overall display quality
- Best in class speakers
Advantages of the Lenovo Flex 5 14
- Very good portability
- Very good battery life
Key differences
General Use
8.5
7.7
3840 x 2160
RESOLUTION
1920 x 1200
OLED
DISPLAY TECHNOLOGY
IPS
332.0 nits
DISPLAY BRIGHTNESS
277.0 nits
7.0 Hours
BATTERY LIFE
11.5 Hours
7.5/10
KEYBOARD QUALITY SCORE
7.0/10
7.1/10
PORTABILITY SCORE
8.3/10
The ASUS ZenBook Pro Duo 15 is very good for general use, while the Lenovo Flex 5 14 is good.
The ASUS ZenBook Pro Duo 15 stands out for general use due to its powerful CPU, large RAM size, high-end screen quality, and substantial battery capacity, which support performance-intensive tasks, although it is less portable. In contrast, the Lenovo Flex 5 14, with its sufficient CPU and RAM for everyday tasks, offers a good balance of screen quality, battery life, and portability, making it a flexible option for general use and occasional gaming, despite having less power and shorter battery life than the ASUS.
Gaming and AI
7.8
6.2
7.8/10
OVERALL GPU SCORE
3.6/10
3840 x 2160
RESOLUTION
1920 x 1200
60Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.7/10
FAN NOISE SCORE
7.5/10
The ASUS ZenBook Pro Duo 15 is good for gaming and AI, while the Lenovo Flex 5 14 is only fair.
The ASUS ZenBook Pro Duo 15 has a high-powered Nvidia RTX 3070 Ti GPU and an OLED screen which ensure smooth and visually engaging gaming experiences, but the Lenovo Flex 5 14's integrated AMD Vega 8 graphics are less capable for demanding 3D tasks and its IPS screen offers lower color coverage, which reflects its fair performance in gaming and 3D situations. While both laptops have the same 60Hz screen refresh rate, the GPU and screen quality in the ZenBook Pro Duo 15 are superior for gaming, although this may come at a higher price and with more weight, reducing its portability compared to the more lightweight Flex 5.
Engineering and Design
9.0
7.0
9.2/10
OVERALL CPU SCORE
6.9/10
7.8/10
OVERALL GPU SCORE
3.6/10
32.0 GB
RAM
16.0 GB
The ASUS ZenBook Pro Duo 15 is excellent for engineering and design, while the Lenovo Flex 5 14 is good.
The ASUS ZenBook Pro Duo 15 outperforms the Lenovo Flex 5 14 for engineering and design because it offers more powerful components such as an Intel i9 processor, twice the RAM, and a superior Nvidia RTX GPU, coupled with an OLED screen that provides better screen quality with higher resolution and color accuracy. However, the Lenovo is more portable and versatile as a 2-in-1 convertible with a touchscreen, making it suitable for on-the-go use and presentations, albeit with less powerful integrated graphics and a standard IPS panel.
Content Creation
8.7
7.6
9.2/10
OVERALL CPU SCORE
6.9/10
3840 x 2160
RESOLUTION
1920 x 1200
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 Flex 5 14 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
7.4
9.2/10
OVERALL CPU SCORE
6.9/10
32.0 GB
RAM
16.0 GB
3840 x 2160
RESOLUTION
1920 x 1200
7.5/10
KEYBOARD QUALITY SCORE
7.0/10
The ASUS ZenBook Pro Duo 15 is very good for software development, while the Lenovo Flex 5 14 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
6.4
15.6in
SIZE
14.0in
3840 x 2160
RESOLUTION
1920 x 1200
OLED
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
332.0 nits
BRIGHTNESS
277.0 nits
The ASUS Zenbook Pro Duo 15 has a better screen than the Lenovo Flex 5 14 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS ZenBook Pro Duo 15 boasts a high-resolution display and exceptional brightness, making it a joy to use for browsing and productivity tasks; however, its refresh rate might not be suitable for the fast-paced action of modern games. For engineering and design, its expansive color coverage ensures that professionals can see accurate hues and shades, crucial for their detailed work, while the Lenovo Flex 5's more modest color range might not fully satisfy those needs. On the other hand, both laptops may not satisfy serious gamers due to their lower refresh rates, which could lead to less fluid motion in gameplay.
Battery
7.0 Hours
11.5 Hours
The ASUS Zenbook Pro Duo 15 has 7 hours of battery life. The Lenovo Flex 5 14 has 11.5 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
Very Good
15.6in
SIZE
14.0in
5.1 lbs
WEIGHT
3.4 lbs
0.8in
THICKNESS
0.7in
The Lenovo Flex 5 14 has very good portability, while the ASUS ZenBook Pro Duo 15 has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.6
7.0
The ASUS ZenBook Pro Duo 15 and Lenovo Flex 5 14 both have good build quality, though the ASUS ZenBook Pro Duo 15 has somewhat better build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$2,000
$420
$0
$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 Flex 5 14 costs $420.
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How the ASUS ZenBook Pro Duo 15 and the Lenovo Flex 5 14 compare to other laptops
Spec Comparison
 |  | |
| ASUS ZenBook Pro Duo 15 | Lenovo Flex 5 14 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $420 | ||
Release Date | |||
Release Date | February 1, 2023 | December 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.8'' x 0.85'' | 12.3'' x 8.9'' x 0.7'' | |
Weight | |||
Weight | 5.16 lbs | 3.42 lbs | |
Width | |||
Width | 14.17" | 12.32" | |
Depth | |||
Depth | 9.81" | 8.85" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i9-12900H | AMD Ryzen 7 7730U | |
RAM | |||
RAM | 32 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 0 | |
Storage | |||
Storage | 1024 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 11.5 Hours | |
Battery Capacity | |||
Battery Capacity | 92 Wh | 52.5 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 14" | |
Display Technology | |||
Display Technology | OLED | IPS | |
Resolution | |||
Resolution | 3840 x 2160 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 332 nits | 277 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.6/10 | 7/10 | |
Portability Score | |||
Portability Score | 7.1/10 | 8.3/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
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 | 7/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.6/10 | 6/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 1 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 1 | |
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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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 Flex 5 14
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Dig into reviews and images
NotebookCheck
Allen Ngo | May 2021
"The highlight of the latest IdeaPad Flex 5 14 is clearly its AMD CPU. The octa-core Ryzen 7 5700U is insanely fast even when compared to the best Tiger Lake Ultrabooks in the market or even Core H CPUs in many gaming laptops. It's a lot of raw processing power for what is supposed to be a budget 14-inch convertible. If your daily workloads can benefit from extra multi-thread CPU performance, then look no further than the inexpensive AMD-powered Lenovo IdeaPad Flex 5 14. For regular on-the-road browsing or video streaming, however, a slimmer and lighter 10th gen Core Yoga, Spectre, or XPS would be a more balanced option."
Get a great deal on the ASUS ZenBook Pro Duo 15 or the Lenovo Flex 5 14
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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