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·
Choosing between the ASUS Zenbook Duo 14 and the Lenovo IdeaPad Slim 3 largely depends on your needs and budget. The Zenbook Duo is pricier but offers better general, engineering, and creative performance with its superior processor and unique dual-screen feature, making it suitable for multitasking professionals. Conversely, the IdeaPad Slim 3 is more affordable, lighter on your wallet, and offers longer battery life, making it ideal for basic tasks and general use. While neither laptop is designed for high-end gaming, both have decent build quality and portability, but the Zenbook Duo holds an edge in performance, and the IdeaPad Slim 3 in battery longevity and value for money. 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 Duo 14
- Good overall build quality
- Very good portability
- Good speakers
Advantages of the Lenovo IdeaPad Slim 3
- Very good battery life
Key differences
Screen Quality
6.8
6.4
14.0in
SIZE
15.6in
1920 x 1080
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
314.0 nits
BRIGHTNESS
281.0 nits
The ASUS Zenbook Duo 14 has a better screen than the Lenovo IdeaPad Slim 3 for general use, and engineering and design.
The ASUS Zenbook Duo 14 offers a high-resolution display and bright screens, which means text and images are sharp and easy to see, making it suitable for general use and detail-oriented engineering tasks where color accuracy and clarity are crucial. However, its typical refresh rate may not be ideal for gaming or 3D, where smoother motion and faster screen updates are needed for an optimal experience. On the other hand, the Lenovo IdeaPad Slim 3 provides sufficient resolution and brightness for everyday tasks and entry-level design work, but like the ASUS, it falls short for gaming and 3D due to an average refresh rate that can't deliver the silky-smooth visuals preferred by gamers and professionals in animation.
Battery
8.5 Hours
10.0 Hours
The ASUS Zenbook Duo 14 has 8.5 hours of battery life. The Lenovo IdeaPad Slim 3 has 10 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
7.8
6.5
The ASUS Zenbook Duo 14 has good build quality, while the Lenovo IdeaPad Slim 3 has only fair build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$999
$400
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The ASUS Zenbook Duo 14 has a price of $999 and the Lenovo IdeaPad Slim 3 costs $400.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Key similarities
General Use
7.1
7.0
1920 x 1080
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
314.0 nits
DISPLAY BRIGHTNESS
281.0 nits
8.5 Hours
BATTERY LIFE
10.0 Hours
6.7/10
KEYBOARD QUALITY SCORE
6.5/10
8.2/10
PORTABILITY SCORE
7.9/10
The ASUS Zenbook Duo 14 and Lenovo IdeaPad Slim 3 are both good for general use.
The ASUS Zenbook Duo 14 offers solid screen quality, excellent heat management, and a high-quality keyboard but sacrifices some portability and has a shorter battery life compared to the Lenovo IdeaPad Slim 3, which is lighter with longer battery life but offers lower screen color quality and heat management performance. While both laptops have similar CPU, RAM, and storage capabilities, the tradeoffs between the Zenbook Duo's superior screen and thermal attributes and the IdeaPad's longer battery life and better portability should be considered based on your personal usage priorities.
Gaming and AI
6.1
5.9
3.7/10
OVERALL GPU SCORE
3.6/10
1920 x 1080
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.0/10
FAN NOISE SCORE
9.5/10
Although they have very similar scores, PerfectRec considers ASUS Zenbook Duo 14 to be only fair for gaming and AI, while the Lenovo IdeaPad Slim 3 is poor.
The ASUS Zenbook Duo 14 and the Lenovo IdeaPad Slim 3 are both suited for casual gaming and 3D work, attributed to their integrated GPUs which provide fair graphics performance but are not as powerful as dedicated gaming GPUs. Both laptops include displays with a standard 60Hz refresh rate and decent screen quality, ensuring satisfactory visuals, though they won't match the higher refresh rates and superior rendering quality of specialized gaming screens.
Engineering and Design
6.6
6.1
5.5/10
OVERALL CPU SCORE
3.6/10
3.7/10
OVERALL GPU SCORE
3.6/10
8.0 GB
RAM
8.0 GB
The ASUS Zenbook Duo 14 and Lenovo IdeaPad Slim 3 are both only fair for engineering and design.
The ASUS Zenbook Duo 14, with its Intel i7 processor and Iris Xe GPU, offers superior performance for engineering and design tasks over the Lenovo IdeaPad Slim 3's AMD Ryzen 3 and Vega 6 graphics, which provide satisfactory but less robust capabilities.
Content Creation
7.3
7.2
5.5/10
OVERALL CPU SCORE
3.6/10
1920 x 1080
RESOLUTION
1920 x 1080
8.0 GB
RAM
8.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS Zenbook Duo 14 and Lenovo IdeaPad Slim 3 are both 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
7.0
7.1
5.5/10
OVERALL CPU SCORE
3.6/10
8.0 GB
RAM
8.0 GB
1920 x 1080
RESOLUTION
1920 x 1080
6.7/10
KEYBOARD QUALITY SCORE
6.5/10
The Lenovo IdeaPad Slim 3 and ASUS Zenbook Duo 14 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
Very Good
Good
14.0in
SIZE
15.6in
3.6 lbs
WEIGHT
3.5 lbs
0.6in
THICKNESS
0.7in
Although they have very similar scores, PerfectRec considers ASUS Zenbook Duo 14 to have very good portability, while the Lenovo IdeaPad Slim 3 has good portability.
The most portable laptops are small, thin, and light.
Give feedback
We’re constantly working to improve.
How the ASUS Zenbook Duo 14 and the Lenovo IdeaPad Slim 3 compare to other laptops
Spec Comparison
 |  | |
| ASUS Zenbook Duo 14 | Lenovo IdeaPad Slim 3 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$999 | $400 | ||
Release Date | |||
Release Date | August 1, 2021 | March 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 12.8'' x 8.7'' x 0.67'' | 14.2'' x 9.3'' x 0.7'' | |
Weight | |||
Weight | 3.64 lbs | 3.52 lbs | |
Width | |||
Width | 12.76" | 14.15" | |
Depth | |||
Depth | 8.74" | 9.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-1195G7 | AMD Ryzen 3 7330U | |
RAM | |||
RAM | 8 GB | 8 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 0 | |
Storage | |||
Storage | 512 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8.5 Hours | 10 Hours | |
Battery Capacity | |||
Battery Capacity | 70 Wh | 47 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 314 nits | 281 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.8/10 | 6.5/10 | |
Portability Score | |||
Portability Score | 8.2/10 | 7.9/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7/10 | 9.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.8/10 | 6.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7/10 | 6/10 | |
Webcam | |||
Webcam | 720p | 720p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | No | |
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 Duo 14
See more
Dig into reviews and images
NotebookCheck
Allen Ngo | May 2020
"The Asus ZenBook Duo's second screen is like the Apple Touch Bar, but better. Most would agree that having two screens instead of one can really boost productivity and the ZenBook Duo is no different in this regard. It's tough going back to just one screen after becoming accustomed to spacious dual-screen setups. For a laptop form factor, however, users will have to accept some compromises. Firstly, weight is the most obvious drawback as the system is several hundred grams heavier than a regular ZenBook 14. Additionally, colors on the second screen will not be as vivid as the main display."
Lenovo IdeaPad Slim 3
See more
Dig into reviews and images
Rtings
Olivier Martin, Ryan Lim, and John Peroramas | May 2023
"The Lenovo IdeaPad 3i is decent for use as a workstation. Its Intel CPU and integrated graphics can only handle light productivity tasks, not demanding workloads like video editing or 3D graphics. You also can't do any color-critical work because the available displays have a narrow color gamut. It has a good port selection, but its USB-C lacks Thunderbolt 4 support. On the upside, it has a comfortable keyboard and doesn't get hot or loud under load."
Get a great deal on the ASUS Zenbook Duo 14 or the Lenovo IdeaPad Slim 3
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
Compare ASUS Zenbook Duo 14 vs. Lenovo Legion 5 15"
VS
Compare ASUS Zenbook Duo 14 vs. ASUS Vivobook S 16 OLED
VS
Compare ASUS Zenbook Duo 14 vs. LG Ultra 16
VS
Compare Lenovo IdeaPad Slim 3 vs. Dell Inspiron 15 3525
VS
Compare Lenovo IdeaPad Slim 3 vs. Lenovo IdeaPad 3 14"
VS
Compare Lenovo IdeaPad Slim 3 vs. HP 15" Laptop
VS
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
98,295
Recommendations made
21,298
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
