A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
If you prioritize gaming or intensive tasks like 3D rendering and machine learning, the ASUS ROG Flow X16 with its stronger graphics card would be the better option, though it comes at a higher price and has a shorter battery life. On the other hand, the Lenovo IdeaPad Slim 5i is more affordable, has longer battery life, and is slightly lighter, making it more portable. It’s well-suited for general use and can handle some engineering applications but might not perform as well for heavily graphically demanding tasks. Both feature quality keyboards, though only the ASUS has a touchscreen.If you prioritize gaming or intensive tasks like 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
- Very good for general use
- Very good for engineering and design
- Good for gaming and AI
- Very good for content creation
- Very good overall display quality
- Very good overall build quality
- Best in class speakers
Advantages of the Lenovo IdeaPad Slim 5i
- Good battery life
Key differences
Gaming and AI
7.6
6.3
7.2/10
OVERALL GPU SCORE
3.7/10
2560 x 1600
RESOLUTION
1920 x 1200
165Hz
REFRESH RATE
60Hz
Yes
SUPPORTS DLSS
No
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
7.0/10
FAN NOISE SCORE
7.5/10
The ASUS ROG Flow X16 is good for gaming and AI, while the Lenovo IdeaPad Slim 5i is only fair.
The ASUS ROG Flow X16 offers superior gaming and 3D performance due to its powerful Nvidia RTX 3060 graphics card and a high screen refresh rate of 165 Hz, providing smooth visuals and enhanced gaming experiences. In contrast, the Lenovo IdeaPad Slim 5i, with its integrated Intel Iris Xe graphics and a lower refresh rate of 60 Hz, delivers fair performance, which is less suited for intensive gaming and 3D tasks.
Engineering and Design
8.3
7.0
8.1/10
OVERALL CPU SCORE
6.9/10
7.2/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The ASUS ROG Flow X16 is very good for engineering and design, while the Lenovo IdeaPad Slim 5i is good.
The ASUS ROG Flow X16 stands out for engineering and design due to its superior CPU, the AMD Ryzen 9, coupled with a high-end graphics card, the Nvidia RTX 3060, and an exceptional screen quality with a higher resolution, contributing to a vivid visual experience.
Content Creation
8.0
7.4
8.1/10
OVERALL CPU SCORE
6.9/10
2560 x 1600
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS ROG Flow X16 is very good for content creation, while the Lenovo IdeaPad Slim 5i 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.
Screen Quality
8.5
6.4
16.0in
SIZE
16.0in
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
60Hz
502.0 nits
BRIGHTNESS
315.0 nits
The ASUS ROG Flow X16 has a better screen than the Lenovo IdeaPad Slim 5i for general use, gaming and AI, engineering and design, software development, and content creation.
For general use, the ASUS ROG Flow X16 offers a high-resolution display with strong brightness, making text and images crisp and easy on the eyes, while the Lenovo IdeaPad Slim 5i's screen is adequate but lacks the same vibrancy. In engineering and design, the ASUS's wider color gamuts ensure accurate color reproduction which is vital for detailed work, whereas the IdeaPad's colors, though passable, are less precise. However, for gaming and 3D tasks, the ASUS's lower refresh rate leads to less fluid motion compared to laptops designed for gaming, while the Lenovo offers a standard experience not optimized for high-speed visuals.
Battery
5.5 Hours
8.0 Hours
The ASUS ROG Flow X16 has 5.5 hours of battery life. The Lenovo IdeaPad Slim 5i has 8 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.
Build Quality
8.5
7.6
The ASUS ROG Flow X16 has very good build quality, while the Lenovo IdeaPad Slim 5i has good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$1,300
$828
$0
$500
$1,000
$1,500
$2,000
The ASUS ROG Flow X16 has a price of $1,300 and the Lenovo IdeaPad Slim 5i costs $828.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
8.0
7.5
2560 x 1600
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
502.0 nits
DISPLAY BRIGHTNESS
315.0 nits
5.5 Hours
BATTERY LIFE
8.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
7.4/10
PORTABILITY SCORE
7.6/10
Although they have very similar scores, PerfectRec considers ASUS ROG Flow X16 to be very good for general use, while the Lenovo IdeaPad Slim 5i is good.
The ASUS ROG Flow X16, with its more capable AMD Ryzen processor, better GPU, and higher resolution touchscreen display, offers robust performance for general use with the versatility of a 2-in-1 convertible design but has a shorter battery life. In contrast, the Lenovo IdeaPad Slim 5i, while it has a less powerful Intel processor and integrated graphics, provides a longer battery life and greater portability due to its lighter weight, making it suitable for everyday tasks with good screen quality and sufficient RAM.
Software Development
7.7
7.4
8.1/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
1920 x 1200
8.5/10
KEYBOARD QUALITY SCORE
8.0/10
The ASUS ROG Flow X16 and Lenovo IdeaPad Slim 5i are both 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.
Portability
Good
Good
16.0in
SIZE
16.0in
4.6 lbs
WEIGHT
4.1 lbs
0.7in
THICKNESS
0.7in
The Lenovo IdeaPad Slim 5i and ASUS ROG Flow X16 both have good portability.
The most portable laptops are small, thin, and light.
Give feedback
We’re constantly working to improve.
How the ASUS ROG Flow X16 and the Lenovo IdeaPad Slim 5i compare to other laptops
Spec Comparison
 |  | |
| ASUS ROG Flow X16 | Lenovo IdeaPad Slim 5i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,300 | $828 | ||
Release Date | |||
Release Date | August 1, 2022 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14'' x 9.6'' x 0.76'' | 14'' x 9.9'' x 0.7'' | |
Weight | |||
Weight | 4.63 lbs | 4.17 lbs | |
Width | |||
Width | 13.98" | 14.02" | |
Depth | |||
Depth | 9.57" | 9.88" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 9 6900HS | Intel i5-1335U | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 5.5 Hours | 8 Hours | |
Battery Capacity | |||
Battery Capacity | 90 Wh | 56.6 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 1920 x 1200 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 502 nits | 315 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 8.5/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 7.4/10 | 7.6/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 8/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 9.5/10 | 6.5/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
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 | 2 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
ASUS ROG Flow X16
See more
Dig into reviews and images
NotebookCheck
Christian Hintze | June 2023
"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."
Lenovo IdeaPad Slim 5i
See more
Dig into reviews and images
HT Tech
Robin Sinha | February 2021
"The device is made for average work loads and if your work has a lot to do with online browsing, using apps that are not power-hungry and streaming videos. The looks are really good and the device in itself is not a heavy one. And with Intel 11th-gen Core processor, you might sail through most of your work without complaints."
Get a great deal on the ASUS ROG Flow X16 or the Lenovo IdeaPad Slim 5i
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.
Give feedback
We're constantly perfecting our model
Laptop guides you might be interested in
More comparisons for you
FAQs
FAQs about laptops
Why trust us
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.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
102,195
Recommendations made
22,143
Consumer hours saved
About the laptop team
Joe Golden, Ph.D
CEO and Laptops Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
Jason Lew
Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.
Chandradeep Chowdhury
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.
Craig Russell
Laptops Expert
Craig is a UK-based laptops expert. Craig works in IT, where he recommends and supports laptops and PCs for clients and has been recommending laptops on Reddit for five years.
Featured in
