The Dell Inspiron 15 3525 is a budget-friendly option that is lighter and has a touch screen. For those who prefer more RAM and a slightly longer battery life, the Lenovo IdeaPad Slim 5i could be advantageous, along with its option for a backlit keyboard and fingerprint reader for added security and convenience. Both have similar storage capacities and are suitable for general use; however, the IdeaPad's slightly better build quality and fan noise management may be worth considering for a more robust experience. Neither is particularly suited for intensive gaming, so if gaming is a priority, you may want to consider other models. 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 15 3525
The Dell Inspiron 15 3525 has no clear advantages over the Lenovo IdeaPad Slim 5i.
Advantages of the Lenovo IdeaPad Slim 5i
Good for engineering and design
Good for software development
Good overall build quality
Very good keyboard
Key differences
General Use
7.0/10
7.5/10
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
259.0 nits
DISPLAY BRIGHTNESS
315.0 nits
6.5 Hours
BATTERY LIFE
8.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
7.7/10
PORTABILITY SCORE
7.6/10
The Lenovo IdeaPad Slim 5i and Dell Inspiron 15 3525 are both good for general use, though the Lenovo IdeaPad Slim 5i is somewhat better.
The Lenovo IdeaPad Slim 5i outperforms the Dell Inspiron 15 3525 for general use, primarily due to its higher RAM, which facilitates better multitasking and overall smoother performance, and its brighter, higher resolution screen with a better aspect ratio that improves viewing experience and productivity. Additionally, the IdeaPad Slim 5i has a longer battery life, enhancing its portability, despite it being slightly heavier than the Inspiron, which may affect its ease of transport.
Engineering and Design
6.4/10
7.0/10
5.8/10
OVERALL CPU SCORE
6.9/10
3.6/10
OVERALL GPU SCORE
3.7/10
8.0 GB
RAM
16.0 GB
The Lenovo IdeaPad Slim 5i is good for engineering and design, while the Dell Inspiron 15 3525 is only fair.
The Lenovo IdeaPad Slim 5i is deemed better for engineering and design due to its stronger CPU, double the RAM for more efficient multitasking, and a superior GPU for better graphics and rendering performance, along with a higher resolution screen which allows for clearer and more detailed visuals. The Dell Inspiron 15 3525, while offering a solid CPU and GPU for basic engineering tasks, has less RAM which may slow down performance with complex projects, and the screen quality, although good, is lower in resolution compared to the Lenovo.
Software Development
6.9/10
7.4/10
5.8/10
OVERALL CPU SCORE
6.9/10
8.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
1920 x 1200
6.5/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo IdeaPad Slim 5i is good for software development, while the Dell Inspiron 15 3525 is only fair.
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
6.3/10
6.4/10
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
259.0 nits
BRIGHTNESS
315.0 nits
The Lenovo IdeaPad Slim 5i has a better screen than the Dell Inspiron 15 3525 for general use, content creation, and software development.
When choosing between the Dell Inspiron 15 3525 and the Lenovo IdeaPad Slim 5i for general use, both laptops have screens that are adequate thanks to their satisfactory resolution and brightness, although higher-end models might offer sharper images and better visibility. For engineering and design work, neither laptop excels due to limited color coverage, which can be critical for precision in color replication. In terms of gaming and 3D applications, both are less suited because their screens have lower refresh rates, which can result in less fluid motion and responsiveness, while their resolution and panel types are acceptable but not optimized for high-end gaming experiences.
Battery
6.5 Hours
8.0 Hours
The Dell Inspiron 15 3525 has 6.5 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
6.2/10
7.6/10
The Lenovo IdeaPad Slim 5i has good build quality, while the Dell Inspiron 15 3525 has only fair build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$400
$828
$200
$400
$600
$800
$1,000
$1,200
$1,400
The Dell Inspiron 15 3525 has a price of $400 and the Lenovo IdeaPad Slim 5i costs $828.
The Lenovo IdeaPad Slim 5i and Dell Inspiron 15 3525 are both only fair for gaming and AI.
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
7.1/10
7.4/10
5.8/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
1920 x 1200
8.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo IdeaPad Slim 5i and Dell Inspiron 15 3525 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.
Portability
Good
Good
15.6in
SIZE
16.0in
3.7 lbs
WEIGHT
4.1 lbs
0.7in
THICKNESS
0.7in
The Dell Inspiron 15 3525 and Lenovo IdeaPad Slim 5i both have good portability.
The most portable laptops are small, thin, and light.
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How the Dell Inspiron 15 3525 and the Lenovo IdeaPad Slim 5i compare to other laptops
"Dell's Inspiron 15 (3525) is a peppy-enough and affordable-enough home or remote work machine, but it's not very ambitious; it does little to go beyond the basics. More the concern: It’s readily overshadowed by a number of machines that outperform and outclass it. Even if the Inspiron can get the job done today, its competition has the mettle to keep doing the job tomorrow in a way the Inspiron simply can’t promise. Many of its slightly higher-end rivals have to be on sale (and frequently are) to match it on price, but the Inspiron 15 (3525) is outclassed even by some similarly priced options, making it a difficult recommendation."
"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 Dell Inspiron 15 3525 or the Lenovo IdeaPad Slim 5i
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.
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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