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 a budget-friendly option and lightweight design for everyday tasks such as browsing, office work, and media consumption, the Lenovo IdeaPad Slim 3 might appeal to you as it is less expensive and boasts decent battery life. However, if you require more power for resource-intensive activities like 3D rendering, machine learning, or gaming, the Lenovo Legion Slim 5i, with its superior processor, graphics card, and greater memory, would be the better choice, although it is costlier, bulkier, and has shorter battery life. 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 Lenovo IdeaPad Slim 3
- Good portability
- Very good battery life
Advantages of the Lenovo Legion Slim 5i
- Very good for engineering and design
- Very good for gaming and AI
- Very good for content creation
- Very good overall display quality
- Good overall build quality
- Good speakers
- Very good keyboard
Key differences
General Use
7.0
7.9
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
281.0 nits
DISPLAY BRIGHTNESS
343.0 nits
10.0 Hours
BATTERY LIFE
7.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
8.5/10
7.9/10
PORTABILITY SCORE
6.7/10
The Lenovo Legion Slim 5i and Lenovo IdeaPad Slim 3 are both good for general use, though the Lenovo Legion Slim 5i is somewhat better.
The Lenovo IdeaPad Slim 3 is considered fair for general use because it has a more basic CPU and less RAM, which might limit performance, and its screen quality and battery life are modest, although it is lighter and has a longer battery life which increases portability.
Gaming and AI
5.9
8.0
3.6/10
OVERALL GPU SCORE
8.4/10
1920 x 1080
RESOLUTION
2560 x 1600
60Hz
REFRESH RATE
165Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
Yes
9.5/10
FAN NOISE SCORE
6.5/10
The Lenovo Legion Slim 5i is very good for gaming and AI, while the Lenovo IdeaPad Slim 3 is poor.
The Lenovo IdeaPad Slim 3, with its AMD Ryzen 3 integrated Vega 6 graphics and a 60Hz screen refresh rate, provides a fair gaming and 3D experience. In contrast, the Lenovo Legion Slim 5i, equipped with a higher-end Nvidia RTX 4060 discrete graphics card and a much faster 165Hz refresh rate, is very good for gaming and 3D applications, offering smoother visuals and more processing power for complex tasks.
Engineering and Design
6.1
8.4
3.6/10
OVERALL CPU SCORE
9.0/10
3.6/10
OVERALL GPU SCORE
8.4/10
8.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 5i is very good for engineering and design, while the Lenovo IdeaPad Slim 3 is only fair.
The Lenovo IdeaPad Slim 3 is fair for engineering and design due to its more modest CPU, RAM, and integrated graphics, which may not handle demanding tasks as smoothly as higher-spec'd models, but it is lighter and more portable. Meanwhile, the Lenovo Legion Slim 5i excels in engineering and design use because it offers a more powerful CPU, double the RAM, and a superior dedicated GPU, which greatly enhance performance for intensive tasks, though it is less portable due to its size and weight.
Content Creation
7.2
8.0
3.6/10
OVERALL CPU SCORE
9.0/10
1920 x 1080
RESOLUTION
2560 x 1600
8.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Legion Slim 5i is very good for content creation, while the Lenovo IdeaPad Slim 3 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
7.1
7.8
3.6/10
OVERALL CPU SCORE
9.0/10
8.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
6.5/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Slim 5i and Lenovo IdeaPad Slim 3 are both good for software development, though the Lenovo Legion Slim 5i is somewhat better.
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
6.4
8.0
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
165Hz
281.0 nits
BRIGHTNESS
343.0 nits
The Lenovo Legion Slim 5i has a better screen than the Lenovo IdeaPad Slim 3 for general use, gaming and AI, engineering and design, content creation, and software development.
The Lenovo IdeaPad Slim 3's screen, while sufficient for daily tasks like browsing and video streaming, has limited resolution and brightness, making it less vibrant and sharp for more demanding visual tasks. For engineering and design, the Legion Slim 5i's display, with its superior color range, offers better accuracy which is essential for professional color work, but the IdeaPad falls short as its color gamuts are likely narrower. However, both the IdeaPad Slim 3 and Legion Slim 5i may not be optimal for gaming or 3D work where high refresh rates are crucial to reduce motion blur and provide smoother visuals; both have poorer refresh rates compared to specialized gaming laptops.
Battery
10.0 Hours
7.0 Hours
The Lenovo IdeaPad Slim 3 has 10 hours of battery life. The Lenovo Legion Slim 5i has 7 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
Fair
15.6in
SIZE
16.0in
3.5 lbs
WEIGHT
5.2 lbs
0.7in
THICKNESS
0.9in
The Lenovo IdeaPad Slim 3 has good portability, while the Lenovo Legion Slim 5i has only fair portability.
The most portable laptops are small, thin, and light.
Build Quality
6.5
7.4
The Lenovo Legion Slim 5i 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
$400
$1,055
$200
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The Lenovo IdeaPad Slim 3 has a price of $400 and the Lenovo Legion Slim 5i costs $1,055.
Let Us Help Find Your Perfect Laptop
Find your new laptop
Give feedback
We’re constantly working to improve.
How the Lenovo IdeaPad Slim 3 and the Lenovo Legion Slim 5i compare to other laptops
Spec Comparison
 |  | |
| Lenovo IdeaPad Slim 3 | Lenovo Legion Slim 5i |
GENERAL | |||
|---|---|---|---|
| Price | |||
$400 | $1,055 | ||
Release Date | |||
Release Date | March 1, 2023 | May 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.3'' x 0.7'' | 14.2'' x 10.3'' x 0.99'' | |
Weight | |||
Weight | 3.52 lbs | 5.29 lbs | |
Width | |||
Width | 14.15" | 14.16" | |
Depth | |||
Depth | 9.25" | 10.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | AMD Ryzen 3 7330U | Intel i7-13700H | |
RAM | |||
RAM | 8 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 0 | 2 | |
Storage | |||
Storage | 512 GB | 1024 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 10 Hours | 7 Hours | |
Battery Capacity | |||
Battery Capacity | 47 Wh | 80 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 165Hz | |
Display Brightness | |||
Display Brightness | 281 nits | 343 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 6.5/10 | 7.4/10 | |
Portability Score | |||
Portability Score | 7.9/10 | 6.7/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | Yes | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 9.5/10 | 6.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.5/10 | 8.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6/10 | 7/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | Yes | No | |
Backlit Keyboard | |||
Backlit Keyboard | No | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 2 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 3 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
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."
Lenovo Legion Slim 5i
See more
Dig into reviews and images
PCMag
Mark Knapp | August 2023
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Get a great deal on the Lenovo IdeaPad Slim 3 or the Lenovo Legion Slim 5i
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 Lenovo IdeaPad Slim 3 vs. Gateway 15.6"
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 Legion Slim 5i vs. Acer Nitro 5 15
VS
Compare Lenovo Legion Slim 5i vs. Samsung Galaxy Book3 360
VS
Compare Lenovo Legion Slim 5i vs. Acer Predator Helios Neo 16
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
97,095
Recommendations made
21,038
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
