The ASUS ROG Flow X16 is often slightly less expensive and offers a balance between gaming and general performance with good screen size and high refresh rate, suitable for intensive gaming, but it's heavier which affects portability. The Lenovo Slim Pro 9i, while often slightly more expensive, has a brighter, higher density display and is more portable due to its lighter weight, making it ideal for high-resolution tasks and mobility. If high-end engineering tasks and portability are priorities, the Lenovo may be more suitable, whereas if you prefer a larger screen and gaming performance, consider the ASUS. Both have ample storage and memory for most use cases. 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 X16
Best in class speakers
Advantages of the Lenovo Slim Pro 9i
Very good for software development
Best in class overall display quality
Good battery life
Key differences
Engineering and Design
8.3/10
8.9/10
8.1/10
OVERALL CPU SCORE
9.0/10
7.2/10
OVERALL GPU SCORE
6.9/10
16.0 GB
RAM
32.0 GB
The Lenovo Slim Pro 9i and ASUS ROG Flow X16 are both very good for engineering and design, though the Lenovo Slim Pro 9i is somewhat better.
The Lenovo Slim Pro 9i is hailed as excellent for engineering and design use because of its superior CPU, double the RAM, and a more powerful GPU compared to the very good ASUS ROG Flow X16, alongside its high-quality Mini LED screen that offers higher pixel density and brightness for detailed work. While both laptops share important features such as high-resolution touchscreens with similar aspect ratios, the ASUS offers more storage and RAM expandability, but the Slim Pro 9i excels with a lighter and thinner form factor, making it more portable though it compromises slightly on heat management.
Software Development
7.7/10
8.3/10
8.1/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
32.0 GB
2560 x 1600
RESOLUTION
3072 x 1920
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim Pro 9i is very good for software development, while the ASUS ROG Flow X16 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
8.5/10
9.6/10
16.0in
SIZE
14.5in
2560 x 1600
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
165Hz
REFRESH RATE
165Hz
502.0 nits
BRIGHTNESS
618.0 nits
The Lenovo Slim Pro 9i has a better screen than the ASUS ROG Flow X16 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, the Lenovo Slim Pro 9i delivers exceptional clarity and vibrant colors due to its high resolution and superior brightness, offering a more comfortable and visually pleasing experience for everyday tasks. In engineering and design, the Slim Pro 9i's wide color gamuts ensure precise color reproduction critical for professional photo editing and graphics work, putting it ahead of the ASUS ROG Flow X16. However, for gaming and 3D applications where fast motion is common, both laptops may fall short as their screens have lower refresh rates compared to models specifically designed for those activities, which can result in less fluid motion.
Cost
$1,300
$1,500
$500
$1,000
$1,500
$2,000
$2,500
The ASUS ROG Flow X16 has a price of $1,300 and the Lenovo Slim Pro 9i costs $1,500.
The Lenovo Slim Pro 9i and ASUS ROG Flow X16 are both very good for general use.
The ASUS ROG Flow X16 has a high-performance CPU and enough RAM for daily tasks, a quality screen, and versatile 2-in-1 design making it good for general use, but it's heavier and has a moderate battery life, which impacts its portability. On the other hand, the Lenovo Slim Pro 9i offers double the RAM, a more vibrant and higher-resolution Mini LED display for a sharper visual experience, and lighter weight for better portability, along with a slightly better battery life, making it very good for general use.
Gaming and AI
7.6/10
7.6/10
7.2/10
OVERALL GPU SCORE
6.9/10
2560 x 1600
RESOLUTION
3072 x 1920
165Hz
REFRESH RATE
165Hz
Yes
SUPPORTS DLSS
Yes
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.0/10
FAN NOISE SCORE
8.0/10
The Lenovo Slim Pro 9i and ASUS ROG Flow X16 are both good for gaming and AI.
The ASUS ROG Flow X16 is equipped with an Nvidia RTX 3060 GPU and boasts a screen refresh rate of 165Hz, which facilitates smooth and responsive gaming experiences. On the other hand, the Lenovo Slim Pro 9i, while also sharing a refresh rate of 165Hz for fluid gameplay, comes with a relatively newer Nvidia RTX 4050 GPU, promoting high-quality graphics rendering for gaming and 3D applications.
Content Creation
8.0/10
8.5/10
8.1/10
OVERALL CPU SCORE
9.0/10
2560 x 1600
RESOLUTION
3072 x 1920
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Slim Pro 9i and ASUS ROG Flow X16 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.
Battery
5.5 Hours
6.0 Hours
The ASUS ROG Flow X16 has 5.5 hours of battery life. The Lenovo Slim Pro 9i has 6 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
16.0in
SIZE
14.5in
4.6 lbs
WEIGHT
3.7 lbs
0.7in
THICKNESS
0.8in
The Lenovo Slim Pro 9i and ASUS ROG Flow X16 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
8.5/10
8.0/10
The ASUS ROG Flow X16 and Lenovo Slim Pro 9i both have very good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Give feedback
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How the ASUS ROG Flow X16 and the Lenovo Slim Pro 9i compare to other laptops
"Above all else, the Asus ROG Flow X16 is one thing - versatile! It is a thin, mobile work device, it's a 2-in-1, tablet, a powerful workstation and even a gaming PC. But something even more surprising: It does all of these things really well without making any big blunders. It's anything but a lazy compromise. Because, despite its compact dimensions and 2-in-1 functionality, the hardware isn't throttled and boasts, at least in turbo mode, above-average performance."
"The Lenovo Slim Pro 9i is an impressive laptop with a brilliant Mini-LED display, a powerful 100-watt version of Nvidia RTX 4050 graphics, and excellent connectivity. Having run the Cinebench benchmark again, we were impressed with the CPU performance. That makes the Slim Pro 9i is an easy recommendation, especially for those who care about GPU and CPU performance. It’s also a fantastic choice if you frequently view HDR movies and games on your laptop."
Get a great deal on the ASUS ROG Flow X16 or the Lenovo Slim Pro 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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