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What we think
The PerfectRec laptop team Learn more
Updated January 10, 2024·
If you prioritize a larger, high-resolution touchscreen display and can handle a heavier and slightly less portable machine, the Lenovo Flex 5 16 could suit your needs, especially with its longer battery life. In contrast, the Dell Latitude 5431 is a bit lighter and more portable with a smaller screen, offering strong performance for general and engineering tasks but with a shorter battery life. The Dell is a bit more expensive, whereas the Lenovo gives you double the storage. For engineering uses, both laptops perform similarly, though neither is optimized for intensive gaming or 3D/machine learning tasks. 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 Latitude 5431
- Very good speakers
Advantages of the Lenovo Flex 5 16
- Good for engineering and design
- Good overall display quality
- Very good battery life
Key differences
Screen Quality
6.1
7.3
14.0in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
241.0 nits
BRIGHTNESS
400.0 nits
The Lenovo Flex 5 16 has a better screen than the Dell Latitude 5431 for general use, gaming and AI, engineering and design, and content creation.
The Dell Latitude 5431 offers a display that is suitable for everyday tasks and some professional applications due to its adequate resolution and brightness, but it falls short for gaming and 3D applications because of a lower refresh rate. The Lenovo Flex 5 16 provides a sharper image and potentially better color representation, making it a good choice for both general use and engineering or design work, though it lacks the high refresh rate desired for smooth gaming and 3D rendering. Gamers and 3D artists should seek laptops specifically optimized for these purposes, with displays that prioritize high refresh rates in addition to resolution and panel technology.
Battery
9.0 Hours
11.5 Hours
The Dell Latitude 5431 has 9 hours of battery life. The Lenovo Flex 5 16 has 11.5 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
$950
$779
$400
$600
$800
$1,000
$1,200
$1,400
The Dell Latitude 5431 has a price of $950 and the Lenovo Flex 5 16 costs $779.
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Key similarities
General Use
7.5
7.6
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
241.0 nits
DISPLAY BRIGHTNESS
400.0 nits
9.0 Hours
BATTERY LIFE
11.5 Hours
7.0/10
KEYBOARD QUALITY SCORE
7.0/10
7.8/10
PORTABILITY SCORE
7.4/10
The Lenovo Flex 5 16 and Dell Latitude 5431 are both good for general use.
The Dell Latitude 5431, with its moderate screen size and resolution, solid build, and Intel i5 processor, ensures smooth performance for everyday tasks while still being lightweight, making it highly portable and offering a decent battery life. On the other hand, the Lenovo Flex 5 16 steps up with a sharper, larger screen and a more powerful Intel i7 processor, which translates to better multitasking and media experience, though the tradeoff comes in the form of being slightly heavier with a reduced battery life.
Gaming and AI
6.2
6.2
3.7/10
OVERALL GPU SCORE
3.7/10
1920 x 1080
RESOLUTION
2560 x 1600
60Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
8.0/10
FAN NOISE SCORE
7.5/10
The Lenovo Flex 5 16 and Dell Latitude 5431 are both only fair for gaming and AI.
The Dell Latitude 5431 and the Lenovo Flex 5 16 are both equipped with integrated Iris Xe graphics and have a standard screen refresh rate of 60 Hz, which are adequate for some gaming and 3D applications but may not handle more demanding games and 3D tasks smoothly. While their CPUs and screen quality are decent, with the Lenovo offering a higher resolution and touch capability, the GPU and refresh rates are more critical for gaming performance and neither laptop is designed primarily for that purpose.
Engineering and Design
6.9
7.2
7.1/10
OVERALL CPU SCORE
6.9/10
3.7/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
Although they have very similar scores, PerfectRec considers Lenovo Flex 5 16 to be good for engineering and design, while the Dell Latitude 5431 is only fair.
The Dell Latitude 5431 is suited for engineering and design due to its adequate processing power from its Intel i5 CPU and integrated graphics for moderate design tasks, and its IPS screen delivering good color coverage and contrast for precision work. Conversely, the Lenovo Flex 5 16 offers higher screen resolution and better GPU performance from its Intel i7 CPU alongside more storage, and its convertible 2-in-1 form factor with touch capabilities might benefit designers looking for versatility though it may be less portable due to its larger size.
Content Creation
7.4
7.6
7.1/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Flex 5 16 and Dell Latitude 5431 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
7.3
7.5
7.1/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
7.0/10
KEYBOARD QUALITY SCORE
7.0/10
The Lenovo Flex 5 16 and Dell Latitude 5431 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
14.0in
SIZE
16.0in
3.3 lbs
WEIGHT
4.6 lbs
0.9in
THICKNESS
0.7in
The Dell Latitude 5431 and Lenovo Flex 5 16 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.4
7.0
The Dell Latitude 5431 and Lenovo Flex 5 16 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
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How the Dell Latitude 5431 and the Lenovo Flex 5 16 compare to other laptops
Spec Comparison
 |  | |
| Dell Latitude 5431 | Lenovo Flex 5 16 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$950 | $779 | ||
Release Date | |||
Release Date | May 1, 2022 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 12.7'' x 8.4'' x 0.96'' | 14.1'' x 10'' x 0.74'' | |
Weight | |||
Weight | 3.3 lbs | 4.63 lbs | |
Width | |||
Width | 12.65" | 14.09" | |
Depth | |||
Depth | 8.35" | 9.99" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i5-1250P | Intel i7-1255U | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 4 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 256 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 9 Hours | 11.5 Hours | |
Battery Capacity | |||
Battery Capacity | 64 Wh | 52.5 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 14" | 16" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 1920 x 1080 | 2560 x 1600 | |
Refresh Rate | |||
Refresh Rate | 60Hz | 60Hz | |
Display Brightness | |||
Display Brightness | 241 nits | 400 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7/10 | |
Portability Score | |||
Portability Score | 7.9/10 | 7.4/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | No | No | |
Premium Business Laptop | |||
Premium Business Laptop | Yes | No | |
Fan Noise Score | |||
Fan Noise Score | 8/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 7/10 | 7/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 8/10 | 6.8/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | No | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 2 | |
USB-C ports | |||
USB-C ports | 2 | 1 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 2 | |
Thunderbolt Version | |||
Thunderbolt Version | 4 | 4 | |
Shopping
Lenovo Flex 5 16
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Dig into reviews and images
NotebookCheck
Andreas Osthoff | April 2023
"The Lenovo IdeaPad Flex 5 is a solidly equipped, 2-in-1 in the lower price segment. Performance is definitely sufficient for everyday tasks and in tests the battery proved itself to be very economical. That aside, there is a lot of standard fare on show and a search for real highlights ends in vain. The low color coverage and reflective display can be avoided by going for an optional 2.5K display but this also presumably results in poorer battery life. The cooling uses only one fan and leads to a raised temperature on one side of the device under load. Additionally, there is very loud fan noise, also under load or when gaming. On top of that, we also occasionally noticed electronic noises."
Get a great deal on the Dell Latitude 5431 or the Lenovo Flex 5 16
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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