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Updated January 10, 2024·
Choosing the ASUS Vivobook 15 over the Lenovo Flex 5 16 mainly depends on your budget, as the ASUS is substantially less expensive. With the ASUS, expect lower performance due to a basic processor and lesser storage space, which is suitable for general use. However, for tasks demanding higher performance, such as intensive engineering, 3D rendering, or gaming, the Lenovo, despite being pricier, offers a more powerful processor, improved graphics, and more storage. Additionally, the Lenovo's larger, higher-resolution display enhances visual activities and it doubles as a tablet, offering versatility. If portability is essential, ASUS is lighter, making it 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 ASUS Vivobook 15
- The ASUS Vivobook 15 has no clear advantages over the Lenovo Flex 5 16.
Advantages of the Lenovo Flex 5 16
- Good for general use
- Good for engineering and design
- Good for software development
- Good for content creation
- Good overall display quality
- Very good battery life
- Good keyboard
Key differences
General Use
6.5
7.6
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
250.0 nits
DISPLAY BRIGHTNESS
400.0 nits
6.0 Hours
BATTERY LIFE
11.5 Hours
6.7/10
KEYBOARD QUALITY SCORE
7.0/10
7.8/10
PORTABILITY SCORE
7.4/10
The Lenovo Flex 5 16 is good for general use, while the ASUS Vivobook 15 is only fair.
The ASUS Vivobook 15 offers average performance with a less powerful CPU and less RAM, alongside lower screen resolution and brightness, which could affect the overall user experience in general use. On the other hand, the Lenovo Flex 5 16 has a stronger CPU, more RAM, higher resolution, and greater screen brightness, contributing to a smoother and more vibrant experience; additionally, it has a longer battery life and convertible design adding to its versatility, but it is also slightly heavier, which impacts portability.
Engineering and Design
6.1
7.2
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 Flex 5 16 is good for engineering and design, while the ASUS Vivobook 15 is only fair.
The ASUS Vivobook 15, with an Intel i3 processor, less RAM, and basic integrated graphics, is less capable of handling demanding engineering software compared to the Lenovo Flex 5 16 which features a higher-end Intel i7 processor, more RAM, and better integrated graphics. Additionally, the Lenovo Flex 5 16 offers superior screen quality with higher resolution and brightness, contributing to better visuals for design work.
Content Creation
6.4
7.6
5.8/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
2560 x 1600
8.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo Flex 5 16 is good for content creation, while the ASUS Vivobook 15 is only fair.
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
6.5
7.5
5.8/10
OVERALL CPU SCORE
6.9/10
8.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
2560 x 1600
6.7/10
KEYBOARD QUALITY SCORE
7.0/10
The Lenovo Flex 5 16 is good for software development, while the ASUS Vivobook 15 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
7.3
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
250.0 nits
BRIGHTNESS
400.0 nits
The Lenovo Flex 5 16 has a better screen than the ASUS Vivobook 15 for general use, gaming and AI, engineering and design, content creation, and software development.
For general use, the Lenovo Flex 5 16's higher resolution and brighter display provide clearer and more vibrant visuals than the ASUS Vivobook 15, enhancing the viewing experience for activities like browsing and video streaming. In engineering and design, the Lenovo's wider color gamuts ensure more accurate color representation which is crucial for tasks such as graphic design or video editing. However, for gaming and 3D applications, both laptops fall short due to their lower refresh rates, which can lead to less fluid motion and responsiveness in fast-paced scenarios.
Battery
6.0 Hours
11.5 Hours
The ASUS Vivobook 15 has 6 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
$530
$740
$200
$400
$600
$800
$1,000
$1,200
The ASUS Vivobook 15 has a price of $530 and the Lenovo Flex 5 16 costs $740.
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Key similarities
Gaming and AI
5.9
6.2
3.6/10
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
7.5/10
FAN NOISE SCORE
7.5/10
Although they have very similar scores, PerfectRec considers Lenovo Flex 5 16 to be only fair for gaming and AI, while the ASUS Vivobook 15 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.
Portability
Good
Good
15.6in
SIZE
16.0in
3.7 lbs
WEIGHT
4.6 lbs
0.7in
THICKNESS
0.7in
The ASUS Vivobook 15 and Lenovo Flex 5 16 both have good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.0
7.0
The ASUS Vivobook 15 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 ASUS Vivobook 15 and the Lenovo Flex 5 16 compare to other laptops
Spec Comparison
 |  | |
| ASUS Vivobook 15 | Lenovo Flex 5 16 |
GENERAL | |||
|---|---|---|---|
| Price | |||
$530 | $740 | ||
Release Date | |||
Release Date | March 1, 2023 | April 1, 2022 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 9.2'' x 0.7'' | 14.1'' x 10'' x 0.74'' | |
Weight | |||
Weight | 3.75 lbs | 4.63 lbs | |
Width | |||
Width | 14.16" | 14.09" | |
Depth | |||
Depth | 9.15" | 9.99" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i3-1215U | Intel i7-1255U | |
RAM | |||
RAM | 8 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 4 | 4 | |
RAM Slots | |||
RAM Slots | 1 | 0 | |
Storage | |||
Storage | 128 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 6 Hours | 11.5 Hours | |
Battery Capacity | |||
Battery Capacity | 42 Wh | 52.5 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 15.6" | 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 | 250 nits | 400 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7/10 | 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 | No | No | |
Fan Noise Score | |||
Fan Noise Score | 7.5/10 | 7.5/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 6.8/10 | 7/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 6/10 | 6.8/10 | |
Webcam | |||
Webcam | 720p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | No | Yes | |
Number Pad | |||
Number Pad | Yes | Yes | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 3 | 2 | |
USB-C ports | |||
USB-C ports | 1 | 1 | |
USB-C Charging | |||
USB-C Charging | No | Yes | |
Display Outputs | |||
Display Outputs | 1 | 2 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
ASUS Vivobook 15
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Dig into reviews and images
NotebookCheck
Sascha Mölck, | April 2022
"The Asus VivoBook 15 is a quiet office notebook with a strong screen. However, the VivoBook 15 still has room for improvement. Office and internet applications as well as simple games do not pose any major challenges for the VivoBook - this is ensured by the built-in combination of Ryzen 7 5700U APU and 16 GB of RAM. Heat and noise emissions are acceptable. But, the laptop has weaknesses that should not be present at this level: lack of keyboard lighting, a slow memory card reader, no fast USB-C port (USB 3.2 Gen 2 or Thunderbolt 4) with Power Delivery and DisplayPort. Battery runtimes can only be described as average."
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 ASUS Vivobook 15 or the Lenovo Flex 5 16
About ASUS
ASUS, a Taiwanese electronics brand, is one of the largest personal computer vendor by market share. The majority of their laptops are targeted towards personal use or gaming. Their most popular product lines include the budget-friendly VivoBook, more premium ZenBook, and their TUF and ROG gaming laptops, the latter of which has a reputation for excellent gaming performance.
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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