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Zenfone 9
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Galaxy S23 Ultra
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What we think

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The PerfectRec phone team Learn more
Updated January 10, 2024·

The Samsung Galaxy S23 Ultra offers a more premium experience with superior camera capabilities, including better photo and video quality, and a higher megapixel count across various lenses. It also has a larger screen with a higher resolution, higher peak brightness, and a variable refresh rate, which could provide a better viewing experience. However, it is more expensive and larger in size, which might not be preferred if you are looking for something more compact. On the other hand, the Asus Zenfone 9 is less expensive, offers a solid camera performance, and is more compact with a smaller screen and lighter weight. It has a plastic back as opposed to the glass back of the Samsung, which might be more durable but less premium-feeling. The battery life of the Zenfone is shorter, and it does not support wireless charging. If budget and one-handed usability are your main concerns, the Zenfone 9 could be the better choice, but if you prioritize camera quality, screen features, and battery life, and don't mind the larger size and higher price, the Samsung Galaxy S23 Ultra is the better option. 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
  • The Asus Zenfone 9 has no clear advantages over the Samsung Galaxy S23 Ultra.
Advantages of the Samsung Galaxy S23 Ultra
  • Best in class for taking photos
  • Very good for recording videos
  • Best in class battery life
  • Best in class display quality
  • Excellent performance

Key differences

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Overall Camera Quality

6.2
Zenfone 9
Galaxy S23 Ultra
9.2
The Samsung Galaxy S23 Ultra has excellent overall camera quality, while the Asus Zenfone 9 has only fair overall camera quality.

Photo Quality

6.0
Zenfone 9
Galaxy S23 Ultra
9.5
The Samsung Galaxy S23 Ultra takes best in class photos, while the Asus Zenfone 9 takes only fair photos.

Video Quality

6.4
Zenfone 9
Galaxy S23 Ultra
8.0
The Samsung Galaxy S23 Ultra takes very good videos, while the Asus Zenfone 9 takes only fair videos.

Battery

7.8 Hours
Zenfone 9
Galaxy S23 Ultra
10.4 Hours
The Asus Zenfone 9 has 7.8 hours of battery life. The Samsung Galaxy S23 Ultra has 10.4 hours of battery life.

Screen Size

The Asus Zenfone 9 has a screen size of 5.9 inches and the Samsung Galaxy S23 Ultra is 6.8 inches.

Cost

$700
Zenfone 9
Galaxy S23 Ultra
$1,037
Product image
Product image

$200

$400

$600

$800

$1,000

$1,200

$1,400

The Asus Zenfone 9 has a price of $700 and the Samsung Galaxy S23 Ultra costs $1,037.
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How the Asus Zenfone 9 and the Samsung Galaxy S23 Ultra compare to other phones

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Spec Comparison

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Asus Zenfone 9Samsung Galaxy S23 Ultra
Asus Zenfone 9Samsung Galaxy S23 Ultra

GENERAL

Price
$700
$1,037
Brand
AsusSamsung
Operating System
AndroidAndroid
Release Date
September 15, 2022February 17, 2023

SCREEN

Screen Size
5.9"6.8"
Resolution
2400 x 10803088 x 1440
Variable refresh rate
NoYes
Pixels Per Inch
445501
Display Type
OLEDOLED

INTERNAL

Processor
SD8+G1SD8G2
Internal Storage
128 GB256 GB
RAM
6 GB8 GB

CAMERA

Overall Camera Quality Score
6.3/109.3/10
Photos Score
6/109.5/10
Videos Score
6.5/108.1/10
Rear Cameras
Main, UltrawideMain, Ultrawide, Telephoto, Super Telephoto
Main Camera
50 megapixels + OIS200 megapixels + OIS

BATTERY

Battery Life
7.8 Hours10.4 Hours
Battery Capacity
4300 mAh5000 mAh
Wireless Charging
NoYes
Wireless charging Speed
0 W15 W
Reverse wireless charging
NoYes (4.5 watts)

PHYSICAL

Size
5.77" x 2.68"6.43" x 3.07"
Weight
5.96 oz8.25 oz
Back Material
PlasticGlass
Stereo Speakers
NoNo

CONNECTIVITY

Dual SIM
YesYes
Bluetooth Version
5.25.3
A2DP
YesYes
WiFi Version
6e6e
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)1, 7, 25, 28, 41, 66, 71, 78, 258, 260, 270

OTHER FEATURES

Biometric unlock
Fingerprint sensor: SideFace unlock, Fingerprint sensor: Under Display
Unlockable Bootloader
NoNo
Color
Sunset Red, Starry BlueGreen, Phantom Black, Cream, Lavender, Graphite
Stock Android
YesNo
SD Card
NoNo

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 S23 Ultra

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Dig into reviews and images

Android Authority

Ryan Haines | March 2023
"The Galaxy S23 Ultra doesn’t just want a place at the top right now; it expects to stay there. Samsung’s excellent update commitment and connectivity standards will keep its flagship feeling fresh for years to come, and the high-end materials will put up with more than their share of wear and tear. It might be more than most users need in terms of size, power, and cost, but you’ll be hard-pressed to find a glaring weakness."

Get a great deal on the Asus Zenfone 9 or the Samsung Galaxy S23 Ultra

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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Why trust us

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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
77,700
Recommendations made
44,030
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.

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Chief Data Scientist
Nick is a machine learning expert with a Ph.D in recommendation systems from the University of Warwick.

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Head of Product
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