The ASUS Vivobook S 15 OLED offers superior performance for engineering tasks, a larger high-resolution OLED screen, and is well-suited for fast motion activities like gaming due to its higher refresh rate. However, it has lower battery life compared to Lenovo Flex 5 14, which offers a touchscreen, is lighter, and more portable due to its smaller form factor and longer battery life, making it ideal for general use and travel. Both have similar RAM, storage, and are priced comparably but the Lenovo has a better keyboard and webcam. Your choice should balance between portability and battery life (Lenovo) against screen quality and performance (ASUS). 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 S 15 OLED
Very good for engineering and design
Very good for content creation
Very good overall display quality
Good speakers
Advantages of the Lenovo Flex 5 14
Very good portability
Very good battery life
Good keyboard
Key differences
Engineering and Design
8.2/10
7.0/10
9.5/10
OVERALL CPU SCORE
6.9/10
3.8/10
OVERALL GPU SCORE
3.6/10
16.0 GB
RAM
16.0 GB
The ASUS Vivobook S 15 OLED is very good for engineering and design, while the Lenovo Flex 5 14 is good.
The ASUS Vivobook S 15 OLED is equipped with an Intel i9 processor and an OLED display offering vibrant colors and high brightness, making it well-suited for demanding engineering tasks and design work that require powerful processing and quality visuals. The Lenovo Flex 5 14, while also capable for engineering and design with its AMD Ryzen 7 processor and IPS touchscreen, doubles as a convertible 2-in-1 device, adding versatility for presentations and collaborative work, though it may have slightly lower screen brightness and color coverage compared to the ASUS.
Content Creation
8.2/10
7.6/10
9.5/10
OVERALL CPU SCORE
6.9/10
2880 x 1620
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
OLED
DISPLAY TECHNOLOGY
IPS
The ASUS Vivobook S 15 OLED is very good for content creation, while the Lenovo Flex 5 14 is good.
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.
Screen Quality
8.9/10
6.4/10
15.6in
SIZE
14.0in
2880 x 1620
RESOLUTION
1920 x 1200
OLED
DISPLAY TECHNOLOGY
IPS
120Hz
REFRESH RATE
60Hz
600.0 nits
BRIGHTNESS
277.0 nits
The ASUS Vivobook S 15 OLED has a better screen than the Lenovo Flex 5 14 for general use, gaming and AI, engineering and design, software development, and content creation.
The ASUS Vivobook S 15 OLED boasts a high-resolution OLED display that provides vibrant colors and deep blacks, making it ideal for both general use and professional work in engineering and design due to its wide color gamuts. However, its standard refresh rate limits its appeal for gaming and 3D applications where smoother visuals are crucial. Conversely, the Lenovo Flex 5 14 offers a fair balance with decent brightness and resolution suitable for everyday tasks and some design work, but like the ASUS, it falls short for gaming due to its average refresh rate and less impressive color coverage.
Battery
7.0 Hours
11.5 Hours
The ASUS Vivobook S 15 OLED has 7 hours of battery life. The Lenovo Flex 5 14 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 ASUS Vivobook S 15 OLED and Lenovo Flex 5 14 are both good for general use.
The ASUS Vivobook S 15 OLED has a more powerful CPU and a vibrant OLED screen, ideal for heavy tasks and quality visuals, but with lower battery life than the Lenovo Flex 5 14, which offers a 2-in-1 design with touchscreen, greater portability, and longer battery life, making it versatile for on-the-go use. While both have ample storage and RAM for general use, the Vivobook's speaker and screen quality are superior, though the Flex 5 counters with better portability and heat management.
Gaming and AI
6.7/10
6.2/10
3.8/10
OVERALL GPU SCORE
3.6/10
2880 x 1620
RESOLUTION
1920 x 1200
120Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.0/10
FAN NOISE SCORE
7.5/10
The ASUS Vivobook S 15 OLED and Lenovo Flex 5 14 are both only fair for gaming and AI.
The ASUS Vivobook S 15 OLED is better for gaming and 3D because it has a higher screen refresh rate and superior GPU compared to the Lenovo Flex 5 14, which has a lower refresh rate and less powerful integrated graphics. Additionally, the Vivobook's OLED display with high color accuracy and contrast ratio enriches visual experiences, making it preferable for these tasks despite a slightly heavier build compared to the more portable Lenovo Flex 5 with its IPS screen.
Software Development
7.9/10
7.4/10
9.5/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
2880 x 1620
RESOLUTION
1920 x 1200
6.7/10
KEYBOARD QUALITY SCORE
7.0/10
The ASUS Vivobook S 15 OLED and Lenovo Flex 5 14 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
Very Good
15.6in
SIZE
14.0in
3.7 lbs
WEIGHT
3.4 lbs
0.7in
THICKNESS
0.7in
Although they have very similar scores, PerfectRec considers Lenovo Flex 5 14 to have very good portability, while the ASUS Vivobook S 15 OLED has good portability.
The most portable laptops are small, thin, and light.
Build Quality
7.2/10
7.0/10
The ASUS Vivobook S 15 OLED and Lenovo Flex 5 14 both have good build quality.
PerfectRec’s Build Quality Score incorporates case materials, display and keyboard flex, hinge quality, and overall reliability.
Cost
$990
$950
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The ASUS Vivobook S 15 OLED has a price of $990 and the Lenovo Flex 5 14 costs $950.
Give feedback
We’re constantly working to improve.
How the ASUS Vivobook S 15 OLED and the Lenovo Flex 5 14 compare to other laptops
"The Asus Vivobook S 15 OLED excels as a capable work machine at an affordable price. It offers commendable performance, thanks to its 12th Gen Intel chip, delivers quality on-screen entertainment with its 15.6-inch OLED display, and can (kind of) get you through a full day of work. Oh, and its special Asus Antibacterial Guard is a nice touch for those who like a clean laptop."
"The highlight of the latest IdeaPad Flex 5 14 is clearly its AMD CPU. The octa-core Ryzen 7 5700U is insanely fast even when compared to the best Tiger Lake Ultrabooks in the market or even Core H CPUs in many gaming laptops. It's a lot of raw processing power for what is supposed to be a budget 14-inch convertible. If your daily workloads can benefit from extra multi-thread CPU performance, then look no further than the inexpensive AMD-powered Lenovo IdeaPad Flex 5 14. For regular on-the-road browsing or video streaming, however, a slimmer and lighter 10th gen Core Yoga, Spectre, or XPS would be a more balanced option."
Get a great deal on the ASUS Vivobook S 15 OLED or the Lenovo Flex 5 14
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.
By the numbers
380
Laptops evaluated
48,640
Laptops stats compiled
13
Proprietary Laptops ratings developed
99,195
Recommendations made
21,493
Consumer hours saved
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.