The ASUS ROG Flow Z13 offers excellent performance in a very portable form factor, making it a good choice for gaming and intensive tasks on the go. However, it is on the pricier side and may not have the best battery life due to its powerful hardware. On the other hand, the Lenovo Legion 9i typically provides strong performance with good thermal management and a robust build, which is well-suited for gaming and engineering, but it is heavier, which makes it less portable. Your choice should consider whether you value portability with high performance, or are okay with a heavier device that may offer similar capabilities often at a lower cost. 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 ROG Flow Z13
Excellent portability
Good battery life
Advantages of the Lenovo Legion 9i
Best in class for engineering and design
Excellent for gaming and AI
Best in class overall display quality
Best in class speakers
Excellent keyboard
Key differences
Gaming and AI
7.5/10
9.2/10
6.2/10
OVERALL GPU SCORE
9.8/10
2560 x 1600
RESOLUTION
3200 x 2000
165Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
Yes
7.2/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion 9i is excellent for gaming and AI, while the ASUS ROG Flow Z13 is good.
The Lenovo Legion 9i outshines the ASUS ROG Flow Z13 in gaming and 3D applications due to its more powerful GPU, the Nvidia RTX 4080, compared to the Z13's RTX 4050, resulting in smoother and more detailed graphics rendering. Additionally, the Legion 9i boasts a superior CPU, which, along with its GPU, enables better overall performance in high-demand scenarios than the Z13's setup.
Engineering and Design
8.4/10
9.6/10
9.5/10
OVERALL CPU SCORE
9.9/10
6.2/10
OVERALL GPU SCORE
9.8/10
16.0 GB
RAM
32.0 GB
The Lenovo Legion 9i is best in class for engineering and design, while the ASUS ROG Flow Z13 is very good.
The Lenovo Legion 9i is rated higher for engineering and design because it offers double the RAM and a more powerful GPU than the ASUS ROG Flow Z13, vital for demanding tasks and complex software used in these fields. While the ASUS boasts portability and a touchscreen making it versatile for different environments, the Legion's larger, higher-resolution Mini LED screen enhances visual clarity and color accuracy, which are key for design precision.
Screen Quality
8.4/10
9.7/10
13.4in
SIZE
16.0in
2560 x 1600
RESOLUTION
3200 x 2000
IPS
DISPLAY TECHNOLOGY
Mini LED
165Hz
REFRESH RATE
165Hz
511.0 nits
BRIGHTNESS
682.0 nits
The Lenovo Legion 9i has a better screen than the ASUS ROG Flow Z13 for general use, gaming and AI, engineering and design, content creation, and software development.
The ASUS ROG Flow Z13 offers a high-resolution display with excellent brightness and clarity, making it great for everyday tasks with vibrant visuals for intricate designs, but its lower refresh rate could hinder the smoothness required for gaming and 3D applications. For the Lenovo Legion 9i, the combination of superior brightness, high resolution, and extensive color coverage caters brilliantly to detailed engineering work and general usage, ensuring accurate color reproduction, but like the ASUS, it falls short for gaming due to its lower refresh rate. Both laptops perform admirably for professional and daily tasks, but gamers might find the visual fluidity lacking compared to models with higher refresh rates.
Battery
6.5 Hours
3.0 Hours
The ASUS ROG Flow Z13 has 6.5 hours of battery life. The Lenovo Legion 9i has 3 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
Excellent
Fair
13.4in
SIZE
16.0in
2.6 lbs
WEIGHT
5.6 lbs
0.5in
THICKNESS
1.0in
The ASUS ROG Flow Z13 has excellent portability, while the Lenovo Legion 9i has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,575
$3,420
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
$4,000
The ASUS ROG Flow Z13 has a price of $1,575 and the Lenovo Legion 9i costs $3,420.
The Lenovo Legion 9i and ASUS ROG Flow Z13 are both very good for general use.
The ASUS ROG Flow Z13 provides a balance of strong CPU and RAM performance, high screen quality, portability, and reasonable battery life, making it versatile for a variety of tasks. Similarly, the Lenovo Legion 9i stands out with its powerful processing capabilities, immersive screen, and effective heat management, though it trades some portability for higher performance suited for demanding applications.
Content Creation
8.2/10
8.7/10
9.5/10
OVERALL CPU SCORE
9.9/10
2560 x 1600
RESOLUTION
3200 x 2000
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Legion 9i and ASUS ROG Flow Z13 are both very good for content creation.
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
8.0/10
8.3/10
9.5/10
OVERALL CPU SCORE
9.9/10
16.0 GB
RAM
32.0 GB
2560 x 1600
RESOLUTION
3200 x 2000
7.5/10
KEYBOARD QUALITY SCORE
9.0/10
The Lenovo Legion 9i and ASUS ROG Flow Z13 are both very good for software development.
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.
Build Quality
8.5/10
8.5/10
The ASUS ROG Flow Z13 and Lenovo Legion 9i both have very 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 ROG Flow Z13 and the Lenovo Legion 9i compare to other laptops
"The Asus ROG Flow Z13 is a gaming tablet with powerful Alder Lake i9 CPU. The ROG Flow Z13 impresses with its good cooling. After our review, the impression is predominantly positive. Besides a very fast Alder Lake CPU and stable gaming performance, especially the cooling system is surprisingly effective and quiet. You can use the integrated speakers without any issues while gaming. The 1200p display in the 16:10 format also impresses with good color reproduction and high brightness. Since the battery runtimes aren't particularly long as it is, we wouldn't recommend the optional 4K panel."
"The Lenovo Legion 9i is meant as a top-end flagship showcase for enthusiasts, and on that, it delivers. You'll find flashier designs in this price tier—Razer’s all-metal build in a similarly sized laptop like the Blade 16, or monstrous 18-inch machines—but this is a well-thought-out laptop. The chassis is trim for a 16-inch powerhouse, the lid is unique, and bespoke liquid cooling takes performance to the next level."
Get a great deal on the ASUS ROG Flow Z13 or the Lenovo Legion 9i
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.
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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