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Inspiron 15 3511
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Ultra 13
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What we think

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

If you need a laptop with better battery life and portability, the LG Ultra 13 would be a good choice as it's likely lighter and has a more power-efficient design. On the other hand, if you prioritize a larger screen and potentially better performance for multitasking or more demanding applications, the Dell Inspiron 15 3511 might be more suitable. Keep in mind, however, that larger laptops often weigh more, which could be a factor if you carry your laptop frequently. Additionally, larger devices sometimes offer more room for cooling, which can be beneficial for performance during prolonged use. 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 3511
  • Good for engineering and design
Advantages of the LG Ultra 13
  • Good overall build quality
  • Excellent portability
  • Very good battery life
  • Good keyboard

Key differences

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Screen Quality

6.0
Inspiron 15 3511
Ultra 13
6.9
15.6in
SIZE
13.3in
1920 x 1080
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
230.0 nits
BRIGHTNESS
300.0 nits
The Dell Inspiron 15 3511 has a better screen than the LG Ultra 13 for content creation, while the LG Ultra 13 has a better screen for general use, gaming and AI, and engineering and design.

Battery

6.5 Hours
Inspiron 15 3511
Ultra 13
10.0 Hours
The Dell Inspiron 15 3511 has 6.5 hours of battery life. The LG Ultra 13 has 10 hours of battery life.

Portability

Good
Inspiron 15 3511
Ultra 13
Excellent
15.6in
SIZE
13.3in
3.7 lbs
WEIGHT
2.1 lbs
0.7in
THICKNESS
0.6in
The LG Ultra 13 has excellent portability, while the Dell Inspiron 15 3511 has good portability.
The most portable laptops are small, thin, and light.

Build Quality

6.2
Inspiron 15 3511
Ultra 13
7.4
The LG Ultra 13 has good build quality, while the Dell Inspiron 15 3511 has only fair build quality.
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Key similarities

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General Use

7.6
Inspiron 15 3511
Ultra 13
7.2
1920 x 1080
RESOLUTION
1920 x 1080
IPS
DISPLAY TECHNOLOGY
IPS
230.0 nits
DISPLAY BRIGHTNESS
300.0 nits
6.5 Hours
BATTERY LIFE
10.0 Hours
6.5/10
KEYBOARD QUALITY SCORE
7.5/10
7.7/10
PORTABILITY SCORE
9.3/10
The Dell Inspiron 15 3511 and LG Ultra 13 are both good for general use.

Gaming and AI

6.2
Inspiron 15 3511
Ultra 13
6.1
3.6/10
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
7.5/10
FAN NOISE SCORE
8.0/10
The Dell Inspiron 15 3511 and LG Ultra 13 are both only fair for gaming and AI.

Engineering and Design

7.0
Inspiron 15 3511
Ultra 13
6.6
4.9/10
OVERALL CPU SCORE
4.7/10
3.6/10
OVERALL GPU SCORE
3.6/10
32.0 GB
RAM
16.0 GB
Although they have very similar scores, PerfectRec considers Dell Inspiron 15 3511 to be good for engineering and design, while the LG Ultra 13 is only fair.

Content Creation

7.5
Inspiron 15 3511
Ultra 13
7.2
4.9/10
OVERALL CPU SCORE
4.7/10
1920 x 1080
RESOLUTION
1920 x 1080
32.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Dell Inspiron 15 3511 and LG Ultra 13 are both good for content creation.

Software Development

7.3
Inspiron 15 3511
Ultra 13
7.2
4.9/10
OVERALL CPU SCORE
4.7/10
32.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
1920 x 1080
6.5/10
KEYBOARD QUALITY SCORE
7.5/10
The Dell Inspiron 15 3511 and LG Ultra 13 are both good for software development.

Cost

$560
Inspiron 15 3511
Ultra 13
$529
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The Dell Inspiron 15 3511 has a price of $560 and the LG Ultra 13 costs $529.

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How the Dell Inspiron 15 3511 and the LG Ultra 13 compare to other laptops

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Spec Comparison

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Dell Inspiron 15 3511LG Ultra 13
Dell Inspiron 15 3511LG Ultra 13

GENERAL

Price
$560
$529
Release Date
January 1, 2021January 1, 2021
Overall Dimensions
14.1'' x 9.3'' x 0.74''12.1'' x 8.1'' x 0.6''
Weight
3.7 lbs2.16 lbs
Width
14.11"12.08"
Depth
9.27"8.14"

INTERNAL

Processor
Intel i5-1135G7AMD Ryzen 7 4700U
RAM
32 GB16 GB
DDR Memory Version
44
RAM Slots
20
Storage
1024 GB256 GB

BATTERY

Battery Life
6.5 Hours10 Hours
Battery Capacity
41 Wh51 Wh

SCREEN

Diagonal Size
15.6"13.3"
Display Technology
IPSIPS
Resolution
1920 x 10801920 x 1080
Refresh Rate
60Hz60Hz
Display Brightness
230 nits300 nits

RELIABILITY, APPEARANCE & ACOUSTICS

Build Quality Score
6.3/107.4/10
Portability Score
7.8/109.3/10
Gaming Laptop Appearance
NoNo
Premium Business Laptop
NoNo
Fan Noise Score
7.5/108/10

HARDWARE FEATURES

Keyboard Quality Score
6.5/107.5/10
Speaker Quality Score
6.5/106.5/10
Webcam
720p720p
Fingerprint Reader
NoNo
Backlit Keyboard
NoYes
Number Pad
YesNo

CONNECTIVITY

USB Type-A
32
USB-C ports
01
USB-C Charging
NoNo
Display Outputs
11
Thunderbolt Ports
00

Shopping

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Dell Inspiron 15 3511

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Dig into reviews and images

PCMag

Zachary Cuevas | November 2021
"The Dell Inspiron 15 3000 (3511) is a solid, if unremarkable, 15-inch budget laptop. It improves on many of the issues we had with the previous 3505 model, and with the inclusion of Windows 11, the 3511 is already a step above its competition. The lack of a USB-C port, the subpar speakers, and the dim display are drawbacks to factor in, but it's still one of the better 15-inch budget laptops on the market, especially when you consider it's under $400."

LG Ultra 13

See more

Dig into reviews and images

CNET

Joshua Goldman | April 2017
"The 13.3-inch LG Gram is a fine fit if you need to travel as light as possible for as long as possible without spending a fortune to do it. It might not be particularly sturdy or have an eye-catching design and its webcam is less than ideal, but with its sharp touch display, comfortable backlit keyboard, responsive touchpad and a fingerprint reader for extra security, the Gram makes a respectible everyday laptop for business or school work."

Get a great deal on the Dell Inspiron 15 3511 or the LG Ultra 13

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 LG

LG is a South Korean conglomerate company. While LG is mainly known for various products outside of technology, LG also develops laptops. Within the laptop industry, they are known for their thin-and-light Gram series, as well as their value-oriented Ultra series. LG laptops offer very thin and light laptops with phenomenal battery life, and are often on sale.

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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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