The ASUS Vivobook S 15 offers a larger screen and slightly better build, but the Lenovo Flex 5 14 wins in battery life and portability, also offering a touchscreen with a higher resolution and a better aspect ratio. The Vivobook might have an edge for general use and engineering tasks, but the Flex 5 14 is a more viable option for on-the-go use and tasks that benefit from a touchscreen. Both are well-suited for general use and have similar performance for 3D and engineering applications, without being ideal for intensive gaming. Give Feedback
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Advantages of the ASUS Vivobook S 15
The ASUS Vivobook S 15 has no clear advantages over the Lenovo Flex 5 14.
Advantages of the Lenovo Flex 5 14
Very good portability
Very good battery life
Good keyboard
Key differences
Screen Quality
6.3/10
6.4/10
15.6in
SIZE
14.0in
1920 x 1080
RESOLUTION
1920 x 1200
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
60Hz
267.0 nits
BRIGHTNESS
277.0 nits
The ASUS Vivobook S 15 and the Lenovo Flex 5 14 have similar screen quality.
For general use, both the ASUS Vivobook S 15 and Lenovo Flex 5 14 offer screens that are suitable due to acceptable resolution and brightness, which make day-to-day tasks like web browsing and document editing comfortable. In engineering and design, while both models provide adequate resolution and brightness, professionals may find the color reproduction lacking as both fall short in covering broader color gamuts like DCI-P3 and Adobe RGB, which are crucial for precision in color-critical work. As for 3D and gaming, the refresh rates of these laptops may not meet the demands of high-speed visuals, although the resolutions and panel types are serviceable for moderate play and work.
Battery
9.0 Hours
11.5 Hours
The ASUS Vivobook S 15 has 9 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.
Portability
Good
Very Good
15.6in
SIZE
14.0in
3.9 lbs
WEIGHT
3.4 lbs
0.7in
THICKNESS
0.7in
The Lenovo Flex 5 14 has very good portability, while the ASUS Vivobook S 15 has good portability.
The most portable laptops are small, thin, and light.
The ASUS Vivobook S 15 and Lenovo Flex 5 14 are both good for general use.
The ASUS Vivobook S 15, with a solid processor and sufficient RAM, ensures smooth operation for general tasks coupled with a good battery life, but with a less portable design compared to the Lenovo Flex 5 14, which offers versatile 2-in-1 functionality with a touch screen and also good processing capabilities for everyday use, all in a more portable form factor. Screen quality on both laptops is adequate for general use, and while both have ample storage and high-quality keyboards, the Lenovo stands out with better battery life and speaker quality, though the ASUS might provide a quieter and cooler experience during operation.
Gaming and AI
6.3/10
6.2/10
3.7/10
OVERALL GPU SCORE
3.6/10
1920 x 1080
RESOLUTION
1920 x 1200
60Hz
REFRESH RATE
60Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.5/10
FAN NOISE SCORE
7.5/10
The ASUS Vivobook S 15 and Lenovo Flex 5 14 are both only fair for gaming and AI.
The ASUS Vivobook S 15 and Lenovo Flex 5 14 are both fair for gaming and 3D largely because each integrates an AMD Vega 8 graphics chip, which offers moderate graphics performance but not the power needed for high-end gaming or advanced 3D applications. Additionally, both have similar screen refresh rates of 60Hz, which is adequate for general use but may not deliver the smoothness desired by hardcore gamers or professionals in 3D graphics, where higher refresh rates can significantly enhance the experience. The CPUs and screen quality in both laptops are decent but prioritize power efficiency over maximum performance, indicating that they are built with a balance between everyday use and moderate gaming or 3D tasks in mind.
Engineering and Design
7.1/10
7.0/10
7.4/10
OVERALL CPU SCORE
6.9/10
3.7/10
OVERALL GPU SCORE
3.6/10
16.0 GB
RAM
16.0 GB
The ASUS Vivobook S 15 and Lenovo Flex 5 14 are both good for engineering and design.
The ASUS Vivobook S 15, with its AMD Ryzen 7 5800H CPU and ample RAM, delivers the processing power necessary for engineering tasks, while the Lenovo Flex 5 14's similar CPU power, combined with a higher resolution touchscreen display, makes it equally suitable for design work where screen clarity is pivotal. However, the Vivobook's larger screen and the Flex's convertible form factor should be considered against their portability, keyboard, and speaker qualities, as these may influence comfort and convenience during extended use.
Content Creation
7.6/10
7.6/10
7.4/10
OVERALL CPU SCORE
6.9/10
1920 x 1080
RESOLUTION
1920 x 1200
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The ASUS Vivobook S 15 and Lenovo Flex 5 14 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
7.4/10
7.4/10
7.4/10
OVERALL CPU SCORE
6.9/10
16.0 GB
RAM
16.0 GB
1920 x 1080
RESOLUTION
1920 x 1200
6.7/10
KEYBOARD QUALITY SCORE
7.0/10
The Lenovo Flex 5 14 and ASUS Vivobook S 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.
Build Quality
7.0/10
7.0/10
The ASUS Vivobook S 15 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
$908
$950
$400
$600
$800
$1,000
$1,200
$1,400
The ASUS Vivobook S 15 has a price of $908 and the Lenovo Flex 5 14 costs $950.
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How the ASUS Vivobook S 15 and the Lenovo Flex 5 14 compare to other laptops
"Internals make Asus VivoBook S15 laptop a compelling option. The Asus multimedia laptop may look rather below-average with its modest black chassis, lack of a dedicated GPU, limited RAM and meagre port selection without Thunderbolt support. But your impression of the device will start changing once you set your eyes on its high-contrast OLED capable of producing deep blacks and highly accurate colours. And your opinion will change completely when the VivoBook is switched on. The AMD CPU can effortlessly keep up with powerful rivals from Intel. The integrated Radeon graphics blows away Intel's iGPU when it comes to graphics workloads such as rendering and simpler games."
"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 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.
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