A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Flex 5 16
Company ProductName Specs











ThinkBook 13x
Company ProductName Specs











What we think

Chevron down
PerfectRec Logo
The PerfectRec laptop team Learn more
Updated March 14, 2024·

If you're looking for a more budget-friendly laptop for everyday tasks and appreciate versatility, such as using your device as a tablet, the Lenovo Flex 5 with its flexible hinge and touchscreen is a good choice. However, if your priority is a more premium design, higher build quality, and a lighter, more compact laptop for easier portability, investing more in the Lenovo ThinkBook 13x can be worthwhile. Keep in mind that the ThinkBook may also offer better performance, which can be beneficial if you run more demanding applications regularly. 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 Flex 5 16
  • Very good battery life
Advantages of the Lenovo ThinkBook 13x
  • Very good for content creation
  • Very good overall display quality
  • Excellent portability
  • Very good speakers

Key differences

Chevron down

Engineering and Design

7.2
Flex 5 16
ThinkBook 13x
7.9
6.9/10
OVERALL CPU SCORE
8.6/10
3.7/10
OVERALL GPU SCORE
3.7/10
16.0 GB
RAM
16.0 GB
The Lenovo ThinkBook 13x and Lenovo Flex 5 16 are both good for engineering and design, though the Lenovo ThinkBook 13x is somewhat better.

Screen Quality

7.3
Flex 5 16
ThinkBook 13x
8.2
16.0in
SIZE
13.5in
2560 x 1600
RESOLUTION
2880 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
60Hz
REFRESH RATE
120Hz
400.0 nits
BRIGHTNESS
500.0 nits
The Lenovo ThinkBook 13x has a better screen than the Lenovo Flex 5 16 for general use, gaming and AI, engineering and design, content creation, and software development.

Battery

11.5 Hours
Flex 5 16
ThinkBook 13x
8.0 Hours
The Lenovo Flex 5 16 has 11.5 hours of battery life. The Lenovo ThinkBook 13x has 8 hours of battery life.

Portability

Good
Flex 5 16
ThinkBook 13x
Excellent
16.0in
SIZE
13.5in
4.6 lbs
WEIGHT
2.7 lbs
0.7in
THICKNESS
0.5in
The Lenovo ThinkBook 13x has excellent portability, while the Lenovo Flex 5 16 has good portability.
The most portable laptops are small, thin, and light.

Build Quality

7.0
Flex 5 16
ThinkBook 13x
7.6
The Lenovo ThinkBook 13x and Lenovo Flex 5 16 both have good build quality, though the Lenovo ThinkBook 13x has somewhat better build quality.

Cost

$779
Flex 5 16
ThinkBook 13x
$1,399
Product image
Product image

$0

$500

$1,000

$1,500

$2,000

$2,500

The Lenovo Flex 5 16 has a price of $779 and the Lenovo ThinkBook 13x costs $1,399.
Image of Laptops
Let Us Help Find Your Perfect Laptop
Find your new laptop

Key similarities

Chevron down

General Use

7.6
Flex 5 16
ThinkBook 13x
7.9
2560 x 1600
RESOLUTION
2880 x 1920
IPS
DISPLAY TECHNOLOGY
IPS
400.0 nits
DISPLAY BRIGHTNESS
500.0 nits
11.5 Hours
BATTERY LIFE
8.0 Hours
7.0/10
KEYBOARD QUALITY SCORE
7.5/10
7.4/10
PORTABILITY SCORE
9.3/10
The Lenovo ThinkBook 13x and Lenovo Flex 5 16 are both good for general use.

Gaming and AI

6.2
Flex 5 16
ThinkBook 13x
6.6
3.7/10
OVERALL GPU SCORE
3.7/10
2560 x 1600
RESOLUTION
2880 x 1920
60Hz
REFRESH RATE
120Hz
No
SUPPORTS DLSS
No
No
MUX SWITCH / ADVANCED OPTIMUS
No
7.5/10
FAN NOISE SCORE
8.3/10
The Lenovo ThinkBook 13x and Lenovo Flex 5 16 are both only fair for gaming and AI.

Content Creation

7.6
Flex 5 16
ThinkBook 13x
8.0
6.9/10
OVERALL CPU SCORE
8.6/10
2560 x 1600
RESOLUTION
2880 x 1920
16.0 GB
RAM
16.0 GB
IPS
DISPLAY TECHNOLOGY
IPS
Although they have very similar scores, PerfectRec considers Lenovo ThinkBook 13x to be very good for content creation, while the Lenovo Flex 5 16 is good.

Software Development

7.5
Flex 5 16
ThinkBook 13x
7.9
6.9/10
OVERALL CPU SCORE
8.6/10
16.0 GB
RAM
16.0 GB
2560 x 1600
RESOLUTION
2880 x 1920
7.0/10
KEYBOARD QUALITY SCORE
7.5/10
The Lenovo ThinkBook 13x and Lenovo Flex 5 16 are both good for software development.

Give feedback

We’re constantly working to improve.

How the Lenovo Flex 5 16 and the Lenovo ThinkBook 13x compare to other laptops

Chevron down

Spec Comparison

Chevron down
Lenovo Flex 5 16Lenovo ThinkBook 13x
Lenovo Flex 5 16Lenovo ThinkBook 13x

GENERAL

Price
$779
$1,399
Release Date
April 1, 2022January 30, 2024
Overall Dimensions
14.1'' x 10'' x 0.74''11.6'' x 8.1'' x 0.5''
Weight
4.63 lbs2.7 lbs
Width
14.09"11.6"
Depth
9.99"8.1"

INTERNAL

Processor
Intel i7-1255UIntel Core Ultra 5 125H
RAM
16 GB16 GB
DDR Memory Version
45
RAM Slots
00
Storage
512 GB512 GB

BATTERY

Battery Life
11.5 Hours8 Hours
Battery Capacity
52.5 Wh74 Wh

SCREEN

Diagonal Size
16"13.5"
Display Technology
IPSIPS
Resolution
2560 x 16002880 x 1920
Refresh Rate
60Hz120Hz
Display Brightness
400 nits500 nits

RELIABILITY, APPEARANCE & ACOUSTICS

Build Quality Score
7/107.6/10
Portability Score
7.4/109.4/10
Gaming Laptop Appearance
NoNo
Premium Business Laptop
NoNo
Fan Noise Score
7.5/108.4/10

HARDWARE FEATURES

Keyboard Quality Score
7/107.5/10
Speaker Quality Score
6.8/108.8/10
Webcam
1080p1080p
Fingerprint Reader
YesYes
Backlit Keyboard
YesYes
Number Pad
YesNo

CONNECTIVITY

USB Type-A
20
USB-C ports
13
USB-C Charging
YesYes
Display Outputs
23
Thunderbolt Version
44

Shopping

Chevron down

Lenovo Flex 5 16

See more

Dig into reviews and images

NotebookCheck

Andreas Osthoff | April 2023
"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 Lenovo Flex 5 16 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.

Give feedback

We're constantly perfecting our model

Laptop guides you might be interested in

Chevron down

FAQs

Chevron down

FAQs about laptops

Questions about PerfectRec >

Why trust us

Chevron down
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
100,695
Recommendations made
21,818
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.

Featured in

Color LTT LogoGeekwire logo9to5 Mac logoPhone Arena LogoColor Daring Fireball logo