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Updated March 13, 2024·
If you're focused on gaming or tasks that need more graphical power, the Lenovo Legion Slim 5i offers better performance but is heavier and may have a shorter battery life. The ThinkBook 13x is more suitable for business users who prioritize portability and longer battery life, but it's not as powerful for heavy-duty tasks. Choose the Legion if performance is a priority and you don't mind carrying a bit more weight, or go for the ThinkBook if portability and battery life are more important for everyday tasks and travel. 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 Lenovo Legion Slim 5i
- Very good for engineering and design
- Very good for gaming and AI
- Very good keyboard
Advantages of the Lenovo ThinkBook 13x
- Excellent portability
- Very good speakers
Key differences
Gaming and AI
8.0
6.6
8.4/10
OVERALL GPU SCORE
3.7/10
2560 x 1600
RESOLUTION
2880 x 1920
165Hz
REFRESH RATE
120Hz
Yes
SUPPORTS DLSS
No
Yes
MUX SWITCH / ADVANCED OPTIMUS
No
6.5/10
FAN NOISE SCORE
8.3/10
The Lenovo Legion Slim 5i is very good for gaming and AI, while the Lenovo ThinkBook 13x is only fair.
The Lenovo Legion Slim 5i boasts a more powerful GPU and a higher screen refresh rate, making it better suited for gaming and 3D applications where graphics rendering and smooth visuals are key. In contrast, the Lenovo ThinkBook 13x, while having a decent CPU and screen quality, falls short for gaming and 3D tasks due to its less capable GPU and lower refresh rate.
Engineering and Design
8.4
7.9
9.0/10
OVERALL CPU SCORE
8.6/10
8.4/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The Lenovo Legion Slim 5i is very good for engineering and design, while the Lenovo ThinkBook 13x is good.
The Lenovo Legion Slim 5i, with its higher-tier CPU, more RAM, and advanced GPU, handles demanding engineering and design software better, and its superior screen quality is crucial for detailed work. Although the ThinkBook 13x is lighter and thus more portable, with a comfortable keyboard and quieter operation, its lower specs reduce its suitability for more intensive tasks.
Screen Quality
8.0
8.2
16.0in
SIZE
13.5in
2560 x 1600
RESOLUTION
2880 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
165Hz
REFRESH RATE
120Hz
343.0 nits
BRIGHTNESS
500.0 nits
The Lenovo Legion Slim 5i has a better screen than the Lenovo ThinkBook 13x for gaming and AI, while the Lenovo ThinkBook 13x has a better screen for general use, and engineering and design.
For general use, both the Lenovo Legion Slim 5i and the ThinkBook 13x offer high-resolution displays with bright panels, providing crisp and clear visuals that are easy on the eyes for tasks like web browsing and document editing. Engineers and designers would appreciate the ThinkBook 13x's superior color accuracy and wider color gamuts, allowing for more precise color representation in their work. However, gamers and those engaged in 3D work looking for smooth visuals might find both laptops lacking due to lower refresh rates, which could lead to less fluid motion compared to models with higher refresh rates.
Battery
7.0 Hours
8.0 Hours
The Lenovo Legion Slim 5i has 7 hours of battery life. The Lenovo ThinkBook 13x has 8 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
Fair
Excellent
16.0in
SIZE
13.5in
5.2 lbs
WEIGHT
2.7 lbs
0.9in
THICKNESS
0.5in
The Lenovo ThinkBook 13x has excellent portability, while the Lenovo Legion Slim 5i has only fair portability.
The most portable laptops are small, thin, and light.
Cost
$1,055
$1,399
$0
$500
$1,000
$1,500
$2,000
$2,500
The Lenovo Legion Slim 5i has a price of $1,055 and the Lenovo ThinkBook 13x costs $1,399.
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Key similarities
General Use
7.9
7.9
2560 x 1600
RESOLUTION
2880 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
343.0 nits
DISPLAY BRIGHTNESS
500.0 nits
7.0 Hours
BATTERY LIFE
8.0 Hours
8.5/10
KEYBOARD QUALITY SCORE
7.5/10
6.7/10
PORTABILITY SCORE
9.3/10
The Lenovo Legion Slim 5i and Lenovo ThinkBook 13x are both good for general use.
The Lenovo Legion Slim 5i, with a strong CPU, ample RAM, and high-quality screen, is excellent for demanding tasks and entertainment but less portable and has shorter battery life, while the Lenovo ThinkBook 13x offers a balance of good performance, better portability, and longer battery life, making it ideal for on-the-go use with sufficient capability for everyday tasks. Both have adequate storage, comfortable keyboards, and manage sound and heat well, which enhances their usability for different purposes.
Content Creation
8.0
8.0
9.0/10
OVERALL CPU SCORE
8.6/10
2560 x 1600
RESOLUTION
2880 x 1920
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
The Lenovo ThinkBook 13x and Lenovo Legion Slim 5i are both very 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
7.8
7.9
9.0/10
OVERALL CPU SCORE
8.6/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
2880 x 1920
8.5/10
KEYBOARD QUALITY SCORE
7.5/10
The Lenovo ThinkBook 13x and Lenovo Legion Slim 5i 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
7.4
7.6
The Lenovo ThinkBook 13x and Lenovo Legion Slim 5i 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 Lenovo Legion Slim 5i and the Lenovo ThinkBook 13x compare to other laptops
Spec Comparison
 |  | |
| Lenovo Legion Slim 5i | Lenovo ThinkBook 13x |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,055 | $1,399 | ||
Release Date | |||
Release Date | May 1, 2023 | January 30, 2024 | |
Overall Dimensions | |||
Overall Dimensions | 14.2'' x 10.3'' x 0.99'' | 11.6'' x 8.1'' x 0.5'' | |
Weight | |||
Weight | 5.29 lbs | 2.7 lbs | |
Width | |||
Width | 14.16" | 11.6" | |
Depth | |||
Depth | 10.25" | 8.1" | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | Intel i7-13700H | Intel Core Ultra 5 125H | |
RAM | |||
RAM | 16 GB | 16 GB | |
DDR Memory Version | |||
DDR Memory Version | 5 | 5 | |
RAM Slots | |||
RAM Slots | 2 | 0 | |
Storage | |||
Storage | 1024 GB | 512 GB | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 7 Hours | 8 Hours | |
Battery Capacity | |||
Battery Capacity | 80 Wh | 74 Wh | |
SCREEN | |||
|---|---|---|---|
Diagonal Size | |||
Diagonal Size | 16" | 13.5" | |
Display Technology | |||
Display Technology | IPS | IPS | |
Resolution | |||
Resolution | 2560 x 1600 | 2880 x 1920 | |
Refresh Rate | |||
Refresh Rate | 165Hz | 120Hz | |
Display Brightness | |||
Display Brightness | 343 nits | 500 nits | |
RELIABILITY, APPEARANCE & ACOUSTICS | |||
|---|---|---|---|
Build Quality Score | |||
Build Quality Score | 7.4/10 | 7.6/10 | |
Portability Score | |||
Portability Score | 6.7/10 | 9.4/10 | |
Gaming Laptop Appearance | |||
Gaming Laptop Appearance | Yes | No | |
Premium Business Laptop | |||
Premium Business Laptop | No | No | |
Fan Noise Score | |||
Fan Noise Score | 6.5/10 | 8.4/10 | |
HARDWARE FEATURES | |||
|---|---|---|---|
Keyboard Quality Score | |||
Keyboard Quality Score | 8.5/10 | 7.5/10 | |
Speaker Quality Score | |||
Speaker Quality Score | 7/10 | 8.8/10 | |
Webcam | |||
Webcam | 1080p | 1080p | |
Fingerprint Reader | |||
Fingerprint Reader | No | Yes | |
Backlit Keyboard | |||
Backlit Keyboard | Yes | Yes | |
Number Pad | |||
Number Pad | Yes | No | |
CONNECTIVITY | |||
|---|---|---|---|
USB Type-A | |||
USB Type-A | 2 | 0 | |
USB-C ports | |||
USB-C ports | 2 | 3 | |
USB-C Charging | |||
USB-C Charging | Yes | Yes | |
Display Outputs | |||
Display Outputs | 3 | 3 | |
Thunderbolt Version | |||
Thunderbolt Version | N/A | 4 | |
Shopping
Lenovo Legion Slim 5i
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Dig into reviews and images
PCMag
Mark Knapp | August 2023
"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 Legion Slim 5i or the Lenovo ThinkBook 13x
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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