The Lenovo Legion Slim 5 is very good for gaming and AI, while the Lenovo Flex 5 14 is only fair.
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
7.0/10
8.4/10
6.9/10
OVERALL CPU SCORE
9.1/10
3.6/10
OVERALL GPU SCORE
8.4/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 5 is very good for engineering and design, while the Lenovo Flex 5 14 is good.
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.
Screen Quality
6.4/10
8.0/10
14.0in
SIZE
16.0in
1920 x 1200
RESOLUTION
2560 x 1600
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
165Hz
277.0 nits
BRIGHTNESS
343.0 nits
The Lenovo Legion Slim 5 has a better screen than the Lenovo Flex 5 14 for general use, gaming and AI, engineering and design, content creation, and software development.
PerfectRec’s screen quality scores take into account various important factors that are relevant for different use cases.
Battery
11.5 Hours
7.0 Hours
The Lenovo Flex 5 14 has 11.5 hours of battery life. The Lenovo Legion Slim 5 has 7 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
Very Good
Fair
14.0in
SIZE
16.0in
3.4 lbs
WEIGHT
5.2 lbs
0.7in
THICKNESS
0.9in
The Lenovo Flex 5 14 has very good portability, while the Lenovo Legion Slim 5 has only fair portability.
The most portable laptops are small, thin, and light.
The Lenovo Legion Slim 5 and Lenovo Flex 5 14 are both good for general use.
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.
Content Creation
7.6/10
8.0/10
6.9/10
OVERALL CPU SCORE
9.1/10
1920 x 1200
RESOLUTION
2560 x 1600
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers Lenovo Legion Slim 5 to be 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.
Software Development
7.4/10
7.8/10
6.9/10
OVERALL CPU SCORE
9.1/10
16.0 GB
RAM
16.0 GB
1920 x 1200
RESOLUTION
2560 x 1600
7.0/10
KEYBOARD QUALITY SCORE
8.5/10
The Lenovo Legion Slim 5 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.
Build Quality
7.0/10
7.4/10
The Lenovo Legion Slim 5 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
$950
$930
$400
$600
$800
$1,000
$1,200
$1,400
The Lenovo Flex 5 14 has a price of $950 and the Lenovo Legion Slim 5 costs $930.
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How the Lenovo Flex 5 14 and the Lenovo Legion Slim 5 compare to other laptops
"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."
"The Lenovo Legion Slim 5 Gen 8 acknowledges that a gaming laptop doesn’t have to be as thick as possible and can still ensure adequate cooling when the muscles need flexing. To this end, in the Slim 5 Gen 8, it finds a neat balance of refined, trimmed-down design that still lets its internals cruise (even above their max power ratings). Lenovo then added in some high-end build quality with an altogether excellent keyboard that’s useful for both work and play."
Get a great deal on the Lenovo Flex 5 14 or the Lenovo Legion Slim 5
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
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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.