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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
The Dell Inspiron 16 5620 has a larger screen, more RAM, and is overall better suited for engineering and intensive tasks but is less portable due to its weight. On the other hand, the Lenovo IdeaPad Slim 3 is lighter, more portable, with longer battery life and a touchscreen, making it ideal for general use. Also, the IdeaPad is more affordable, yet it has less RAM which may limit performance for demanding applications. If you require better performance for complex tasks, the Dell might be the better choice, while the Lenovo is suitable for everyday tasks and easier to carry around. 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 Dell Inspiron 16 5620
- Good for engineering and design
- Good overall build quality
- Very good speakers
- Good keyboard
Advantages of the Lenovo IdeaPad Slim 3
- Very good battery life
Key differences
General Use
7.7
7.0
1920 x 1200
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
265.0 nits
DISPLAY BRIGHTNESS
281.0 nits
8.0 Hours
BATTERY LIFE
10.0 Hours
7.0/10
KEYBOARD QUALITY SCORE
6.5/10
7.6/10
PORTABILITY SCORE
7.9/10
The Dell Inspiron 16 5620 and Lenovo IdeaPad Slim 3 are both good for general use, though the Dell Inspiron 16 5620 is somewhat better.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Engineering and Design
7.0
6.1
6.4/10
OVERALL CPU SCORE
3.6/10
3.6/10
OVERALL GPU SCORE
3.6/10
16.0 GB
RAM
8.0 GB
The Dell Inspiron 16 5620 is good for engineering and design, while the Lenovo IdeaPad Slim 3 is only fair.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Screen Quality
6.2
6.4
16.0in
SIZE
15.6in
1920 x 1200
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
265.0 nits
BRIGHTNESS
281.0 nits
The Dell Inspiron 16 5620 has a better screen than the Lenovo IdeaPad Slim 3 for software development, and content creation.
If you primarily use your laptop for general tasks like browsing or document editing, both the Dell Inspiron 16 5620 and the Lenovo IdeaPad Slim 3 offer adequate screen quality, with decent resolution and brightness, although neither is exceptional. For engineering and design work, where accurate colors are key, these laptops provide fair performance but may not cover the professional color gamuts fully, which could limit their effectiveness for high-end visual tasks. Gamers and those doing 3D work may find both models lacking due to their moderate resolutions and panel types, as well as lower refresh rates, which can diminish the visual experience and fail to keep pace with fast-moving visuals.
Battery
8.0 Hours
10.0 Hours
The Dell Inspiron 16 5620 has 8 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.
Cost
$500
$390
$200
$300
$400
$500
$600
$700
$800
The Dell Inspiron 16 5620 has a price of $500 and the Lenovo IdeaPad Slim 3 costs $390.
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Key similarities
Gaming and AI
6.2
5.9
3.6/10
OVERALL GPU SCORE
3.6/10
1920 x 1200
RESOLUTION
1920 x 1080
60Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
10.0/10
FAN NOISE SCORE
9.5/10
Although they have very similar scores, PerfectRec considers Dell Inspiron 16 5620 to be only fair for gaming and AI, while the Lenovo IdeaPad Slim 3 is poor.
PerfectRec’s Gaming and AI Score strongly emphasizes graphics processing capability, while also taking into account other factors that impact suitability for gaming and AI work.
Content Creation
7.6
7.2
6.4/10
OVERALL CPU SCORE
3.6/10
1920 x 1200
RESOLUTION
1920 x 1080
16.0 GB
RAM
8.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell Inspiron 16 5620 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
7.5
7.1
6.4/10
OVERALL CPU SCORE
3.6/10
16.0 GB
RAM
8.0 GB
1920 x 1200
RESOLUTION
1920 x 1080
7.0/10
KEYBOARD QUALITY SCORE
6.5/10
The Dell Inspiron 16 5620 and Lenovo IdeaPad Slim 3 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
15.6in
4.1 lbs
WEIGHT
3.5 lbs
0.6in
THICKNESS
0.7in
The Lenovo IdeaPad Slim 3 and Dell Inspiron 16 5620 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.0
6.5
Although they have very similar scores, PerfectRec considers Dell Inspiron 16 5620 to have 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.
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We’re constantly working to improve.
How the Dell Inspiron 16 5620 and the Lenovo IdeaPad Slim 3 compare to other laptops
Spec Comparison
 |  | |
| Dell Inspiron 16 5620 | Lenovo IdeaPad Slim 3 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$500 | $390 | ||
Release Date | |||
Release Date | January 1, 2022 | March 1, 2023 | |
Overall Dimensions | |||
Overall Dimensions | 14.1'' x 9.9'' x 0.68'' | 14.2'' x 9.3'' x 0.7'' | |
Weight | |||
Weight | 4.12 lbs | 3.52 lbs | |
Width | |||
Width | 14.05" | 14.15" | |
Depth | |||
Depth | 9.92" | 9.25" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1235U | AMD Ryzen 3 7330U | |
RAM | |||
RAM | 16 GB | 8 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 512 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8 Hours | 10 Hours | |
Battery Capacity | |||
Battery Capacity | 54 Wh | 47 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 15.6" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1200 | 1920 x 1080 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 265 nits | 281 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7/10 | 6.5/10 | |
Portability Score | |||
Portability Score | 7.7/10 | 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 | 10/10 | 9.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7/10 | 6.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 6/10 | |
Webcam | |||
Webcam | 1080p | 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 | 2 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 1 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 2 | 2 | |
Thunderbolt Ports | |||
Thunderbolt Ports | 0 | 0 | |
Shopping
Dell Inspiron 16 5620
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Stuff
Brett Venter | January 2023
"If the world is exciting enough right now, you can do far worse than a solid performer that you know will get the job done. Our review model is as powerful as you'd want an office machine to be unless you're performing specialist tasks and the price point is pretty attractive (unless work will let you have a MacBook Air instead)."
Lenovo IdeaPad Slim 3
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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 Dell Inspiron 16 5620 or the Lenovo IdeaPad Slim 3
About Dell
Dell is a highly recognizable American technology company, and is one of the largest personal computer vendor by market share. Their laptops are very popular for both personal and professional use, and they also own the Alienware brand which makes mid to high end gaming laptops. Their premium XPS range of laptops offer great build quality and portability, while Latitude and Precision laptops are known for reliability, repairability and performance for business users.
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.
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