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Aspire 5 15
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Slim Pro 9i
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What we think

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The PerfectRec laptop team Learn more
Updated January 12, 2024·

If you prioritize performance and features over cost and are looking for a high-resolution, touch-enabled display with more storage and memory, then the Lenovo Slim Pro 9i is a suitable choice; however, its superior specifications also make it more expensive than the Acer Aspire 5 15. The Acer, on the other hand, is more budget-friendly, albeit with less storage, memory, and a standard Full HD display without touch capabilities. If you need long battery life and portability for everyday tasks without the need for intense processing power, the Acer Aspire 5 15 may be the better option. Consider your needs carefully against your budget before making a decision. 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 Acer Aspire 5 15
  • The Acer Aspire 5 15 has no clear advantages over the Lenovo Slim Pro 9i.
Advantages of the Lenovo Slim Pro 9i
  • Very good for general use
  • Very good for engineering and design
  • Good for gaming and AI
  • Very good for software development
  • Very good for content creation
  • Best in class overall display quality
  • Very good overall build quality
  • Very good speakers
  • Very good keyboard

Key differences

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General Use

7.5
Aspire 5 15
Slim Pro 9i
8.5
1920 x 1080
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
275.0 nits
DISPLAY BRIGHTNESS
618.0 nits
7.0 Hours
BATTERY LIFE
6.0 Hours
7.0/10
KEYBOARD QUALITY SCORE
8.0/10
7.7/10
PORTABILITY SCORE
7.6/10
The Lenovo Slim Pro 9i is very good for general use, while the Acer Aspire 5 15 is good.

Gaming and AI

6.1
Aspire 5 15
Slim Pro 9i
7.6
2.4/10
OVERALL GPU SCORE
6.9/10
1920 x 1080
RESOLUTION
3072 x 1920
60Hz
REFRESH RATE
165Hz
No
SUPPORTS DLSS
Yes
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.5/10
FAN NOISE SCORE
8.0/10
The Lenovo Slim Pro 9i is good for gaming and AI, while the Acer Aspire 5 15 is only fair.

Engineering and Design

6.6
Aspire 5 15
Slim Pro 9i
8.9
6.9/10
OVERALL CPU SCORE
9.0/10
2.4/10
OVERALL GPU SCORE
6.9/10
16.0 GB
RAM
32.0 GB
The Lenovo Slim Pro 9i is very good for engineering and design, while the Acer Aspire 5 15 is only fair.

Content Creation

7.3
Aspire 5 15
Slim Pro 9i
8.5
6.9/10
OVERALL CPU SCORE
9.0/10
1920 x 1080
RESOLUTION
3072 x 1920
16.0 GB
RAM
32.0 GB
IPS
DISPLAY TECHNOLOGY
Mini LED
The Lenovo Slim Pro 9i is very good for content creation, while the Acer Aspire 5 15 is good.

Software Development

7.3
Aspire 5 15
Slim Pro 9i
8.3
6.9/10
OVERALL CPU SCORE
9.0/10
16.0 GB
RAM
32.0 GB
1920 x 1080
RESOLUTION
3072 x 1920
7.0/10
KEYBOARD QUALITY SCORE
8.0/10
The Lenovo Slim Pro 9i is very good for software development, while the Acer Aspire 5 15 is good.

Screen Quality

6.2
Aspire 5 15
Slim Pro 9i
9.6
15.6in
SIZE
14.5in
1920 x 1080
RESOLUTION
3072 x 1920
IPS
DISPLAY TECHNOLOGY
Mini LED
60Hz
REFRESH RATE
165Hz
275.0 nits
BRIGHTNESS
618.0 nits
The Lenovo Slim Pro 9i has a better screen than the Acer Aspire 5 15 for general use, gaming and AI, engineering and design, content creation, and software development.

Build Quality

6.5
Aspire 5 15
Slim Pro 9i
8.0
The Lenovo Slim Pro 9i has very good build quality, while the Acer Aspire 5 15 has only fair build quality.

Cost

$480
Aspire 5 15
Slim Pro 9i
$1,500
Product image
Product image

$0

$500

$1,000

$1,500

$2,000

$2,500

The Acer Aspire 5 15 has a price of $480 and the Lenovo Slim Pro 9i costs $1,500.
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Key similarities

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Battery

7.0 Hours
Aspire 5 15
Slim Pro 9i
6.0 Hours
The Acer Aspire 5 15 has 7 hours of battery life. The Lenovo Slim Pro 9i has 6 hours of battery life.

Portability

Good
Aspire 5 15
Slim Pro 9i
Good
15.6in
SIZE
14.5in
3.9 lbs
WEIGHT
3.7 lbs
0.7in
THICKNESS
0.8in
The Acer Aspire 5 15 and Lenovo Slim Pro 9i both have good portability.
The most portable laptops are small, thin, and light.

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How the Acer Aspire 5 15 and the Lenovo Slim Pro 9i compare to other laptops

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Spec Comparison

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Acer Aspire 5 15Lenovo Slim Pro 9i
Acer Aspire 5 15Lenovo Slim Pro 9i

GENERAL

Price
$480
$1,500
Release Date
May 1, 2023February 1, 2023
Overall Dimensions
14.2'' x 9.4'' x 0.7''12.9'' x 9.6'' x 0.85''
Weight
3.97 lbs3.7 lbs
Width
14.21"12.9"
Depth
9.4"9.64"

INTERNAL

Processor
Intel i5-1335UIntel i7-13705H
RAM
16 GB32 GB
DDR Memory Version
55
RAM Slots
00
Storage
512 GB1024 GB

BATTERY

Battery Life
7 Hours6 Hours
Battery Capacity
50 Wh75 Wh

SCREEN

Diagonal Size
15.6"14.5"
Display Technology
IPSMini LED
Resolution
1920 x 10803072 x 1920
Refresh Rate
60Hz165Hz
Display Brightness
275 nits618 nits

RELIABILITY, APPEARANCE & ACOUSTICS

Build Quality Score
6.5/108/10
Portability Score
7.8/107.7/10
Gaming Laptop Appearance
NoNo
Premium Business Laptop
NoNo
Fan Noise Score
7.5/108/10

HARDWARE FEATURES

Keyboard Quality Score
7/108/10
Speaker Quality Score
6/108/10
Webcam
1080p1080p
Fingerprint Reader
NoNo
Backlit Keyboard
YesYes
Number Pad
YesNo

CONNECTIVITY

USB Type-A
22
USB-C ports
12
USB-C Charging
YesYes
Display Outputs
23
Thunderbolt Version
44

Shopping

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Acer Aspire 5 15

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Dig into reviews and images

NotebookCheck

Sascha Mölck | November 2022
"The Acer Aspire 5 15 is a good value office laptop with reasonable battery life. The combination of slim exterior, relatively low weight (approx. 1.7 kg) and 8 hour real-life battery runtime makes the Acer Aspire a truly mobile laptop. The modest Tiger Lake processor supports this area and simultaneously ensures an affordable price point. The Aspire produces little noise and stays cool. The screen (FHD, IPS) might not win any prizes but is entirely appropriate for the price."

Lenovo Slim Pro 9i

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Dig into reviews and images

PCWorld

Matthew S. Smith | August 2023
"The Lenovo Slim Pro 9i is an impressive laptop with a brilliant Mini-LED display, a powerful 100-watt version of Nvidia RTX 4050 graphics, and excellent connectivity. Having run the Cinebench benchmark again, we were impressed with the CPU performance. That makes the Slim Pro 9i is an easy recommendation, especially for those who care about GPU and CPU performance. It’s also a fantastic choice if you frequently view HDR movies and games on your laptop."

Get a great deal on the Acer Aspire 5 15 or the Lenovo Slim Pro 9i

About Acer

Acer is a prominent Taiwanese electronics brand which makes a wide range of laptops, with multiple product lines catering to personal use, gaming, and business use. They are renowned for having exceptional value for money, as they frequently offer good specifications at a lower price than other manufacturers.

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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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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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.

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