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Zenfone 9
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Galaxy A42
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What we think

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Updated January 10, 2024·

If you prioritize camera quality and performance, then the Asus Zenfone 9 is a superior choice with better still photo and video quality, plus it has a more powerful processor and higher screen resolution. However, the Samsung Galaxy A42 offers a larger screen and longer battery life, making it ideal for media consumption and extended use. While the Galaxy A42 is more affordable, you would compromise on camera capabilities and performance. Both have Android operating systems and plastic bodies, but the Zenfone 9 has additional features like a 120Hz refresh rate display and HDR video support, justifying its higher price. 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 Zenfone 9
  • Good display quality
  • Good performance
Advantages of the Samsung Galaxy A42
  • Best in class battery life

Key differences

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Overall Camera Quality

6.2
Zenfone 9
Galaxy A42
5.3
The Asus Zenfone 9 has only fair overall camera quality, while the Samsung Galaxy A42 has poor overall camera quality.

Photo Quality

6.0
Zenfone 9
Galaxy A42
5.3
The Asus Zenfone 9 takes only fair photos, while the Samsung Galaxy A42 takes poor photos.

Video Quality

6.4
Zenfone 9
Galaxy A42
5.2
The Asus Zenfone 9 takes only fair videos, while the Samsung Galaxy A42 takes poor videos.

Battery

7.8 Hours
Zenfone 9
Galaxy A42
10.7 Hours
The Asus Zenfone 9 has 7.8 hours of battery life. The Samsung Galaxy A42 has 10.7 hours of battery life.

Screen Size

The Asus Zenfone 9 has a screen size of 5.9 inches and the Samsung Galaxy A42 is 6.6 inches.

Cost

$700
Zenfone 9
Galaxy A42
$360
Product image
Product image

$200

$400

$600

$800

$1,000

$1,200

The Asus Zenfone 9 has a price of $700 and the Samsung Galaxy A42 costs $360.
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How the Asus Zenfone 9 and the Samsung Galaxy A42 compare to other phones

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Spec Comparison

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Asus Zenfone 9Samsung Galaxy A42
Asus Zenfone 9Samsung Galaxy A42

GENERAL

Price
$700
$360
Brand
AsusSamsung
Operating System
AndroidAndroid
Release Date
September 15, 2022November 11, 2020

SCREEN

Screen Size
5.9"6.6"
Resolution
2400 x 10801600 x 720
Variable refresh rate
NoNo
Pixels Per Inch
445266
Display Type
OLEDOLED

INTERNAL

Processor
SD8+G1SD750
Internal Storage
128 GB64 GB
RAM
6 GB4 GB

CAMERA

Overall Camera Quality Score
6.3/105.4/10
Photos Score
6/105.4/10
Videos Score
6.5/105.2/10
Rear Cameras
Main, UltrawideMain, Ultrawide, Macro
Main Camera
50 megapixels + OIS48 megapixels

BATTERY

Battery Life
7.8 Hours10.7 Hours
Battery Capacity
4300 mAh5000 mAh
Wireless Charging
NoNo
Wireless charging Speed
0 W0 W
Reverse wireless charging
NoNo

PHYSICAL

Size
5.77" x 2.68"6.47" x 2.99"
Weight
5.96 oz6.81 oz
Back Material
PlasticPlastic
Stereo Speakers
NoNo

CONNECTIVITY

Dual SIM
YesNo
Bluetooth Version
5.25.0
A2DP
YesYes
WiFi Version
6e5
NFC
YesYes
US 5G Bands
(SA/NSA/Sub6)1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 29, 30, 38, 40, 41, 48, 66, 71, 77, 78, 89(SA/NSA/Sub6/mmWave)2, 25, 41, 66, 71, 77, 78, 260, 261 (SA/NSA/Sub6)1, 3, 5, 7, 8, 28, 40, 41, 78, 79

OTHER FEATURES

Biometric unlock
Fingerprint sensor: SideFace unlock, Fingerprint sensor: Under Display
Unlockable Bootloader
NoNo
Color
Sunset Red, Starry BlueBlack, Gray, White
Stock Android
YesNo
SD Card
NoYes

Shopping

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Asus Zenfone 9

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Dig into reviews and images

Android Authority

Robert Triggs | March 2023
"The Asus Zenfone 9 is a compact device that still packs more than enough power under the hood. It's compact size, Bluetooth and audio features (including a headphone jack!), and hardware gestures combine to offer a package that does enough differently to warrant your attention."

Samsung Galaxy A42

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Dig into reviews and images

Android Central

Ara Wagoner | July 2021
"I need a battery that won't care if I forget to charge it every night, and I need a nice big screen for watching my shows on the go. The 5,000mAh battery will let you get two full days out of the A42. The A42 is right up your alley as an affordable 5G phone that won't die just because you had to crash at a friend's and forgot your phone charger at home."

Get a great deal on the Asus Zenfone 9 or the Samsung Galaxy A42

About ASUS

Asus is a well-known player in the mobile world, and in the past few years it has been known for covering specific niches in the smartphone market. Their Zenfone line of devices appeal to small phone enthusiasts, by providing very well-rounded and capable phones at a package that is not too large to operate with one hand – something hard to find in modern Android smartphones. Conversely, their ROG line of devices cater to mobile gamers, by providing a slew of hardware and software features, specifically tailored to enhance the mobile gaming experience. Additionally, Asus is one of the only manufacturers left that continues to include headphone jacks in their lineup of phones, a feature that has become exceedingly rare in today's market.

About Samsung

Samsung is one of the most recognizable names in the smartphone industry, standing as the undisputed best-selling brand of Android smartphones in the United States for many years now. Samsung is known for offering a variety of smartphones in all available price points, as well as for implementing cutting-edge technology and innovative features in their flagship devices, ones that often shape the market going forward. The company offers its own unique spin on Android, called One UI, which focuses on offering a multitude of features and is heavily customizable, according to user preference.

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This information was produced and vetted by the PerfectRec phones team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest phone information and makes it digestible for you.

By the numbers

68
Phones evaluated
7,820
Phones stats compiled
8
Proprietary Phones ratings developed
88,200
Recommendations made
49,980
Consumer hours saved

About the phone team

Joe Golden, Ph.D

CEO and Phones 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.

Seth Peoples

Phones Expert
Seth is a US-based product expert focusing on smartphones and he is a moderator of one of the largest smartphone subreddits. His tailored recommendations have helped him earn over 87k comment karma, putting him in the top 1% of Redditors.

Efthimis Kotanidis

Phones Expert
Efthimis is a Greece-based product expert focusing on smartphones. He has been recommending phones for 4 years and his recommendations on Reddit have earned him over 35k karma.

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