The ASUS Vivobook 15 has no clear advantages over the Lenovo Flex 5 16.
Advantages of the Lenovo Flex 5 16
Good for engineering and design
Very good battery life
Good keyboard
Key differences
General Use
7.0/10
7.6/10
1920 x 1080
RESOLUTION
2560 x 1600
OLED
DISPLAY TECHNOLOGY
IPS
388.0 nits
DISPLAY BRIGHTNESS
400.0 nits
6.0 Hours
BATTERY LIFE
11.5 Hours
6.7/10
KEYBOARD QUALITY SCORE
7.0/10
7.7/10
PORTABILITY SCORE
7.4/10
The Lenovo Flex 5 16 and ASUS Vivobook 15 are both good for general use, though the Lenovo Flex 5 16 is somewhat better.
PerfectRec’s General Use Score takes into account the many different features of the laptop that make it more or less suitable for general productivity, web browsing, streaming, video calls, and running a wide variety of apps and programs.
Screen Quality
7.8/10
7.3/10
15.6in
SIZE
16.0in
1920 x 1080
RESOLUTION
2560 x 1600
OLED
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
388.0 nits
BRIGHTNESS
400.0 nits
The ASUS Vivobook 15 has a better screen than the Lenovo Flex 5 16 for general use, gaming and AI, and engineering and design, while the Lenovo Flex 5 16 has a better screen for content creation, and software development.
PerfectRec’s screen quality scores take into account various important factors that are relevant for different use cases.
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.
The Lenovo Flex 5 16 and ASUS Vivobook 15 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.
Engineering and Design
6.9/10
7.2/10
4.9/10
OVERALL CPU SCORE
6.9/10
3.6/10
OVERALL GPU SCORE
3.7/10
12.0 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 ASUS Vivobook 15 is only fair.
PerfectRec’s Engineering and Design Score takes into account the many different features of the laptop that make it more or less suitable for graphic design and 3D rendering work.
Content Creation
7.2/10
7.6/10
4.9/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
2560 x 1600
12.0 GB
RAM
16.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The Lenovo Flex 5 16 and ASUS Vivobook 15 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
7.0/10
7.5/10
4.9/10
OVERALL CPU SCORE
6.9/10
12.0 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 and ASUS Vivobook 15 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
15.6in
SIZE
16.0in
3.9 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
7.0/10
7.0/10
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.
Cost
$779
$736
$200
$400
$600
$800
$1,000
$1,200
The ASUS Vivobook 15 has a price of $779 and the Lenovo Flex 5 16 costs $736.
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How the ASUS Vivobook 15 and the Lenovo Flex 5 16 compare to other laptops
"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."
"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.
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.