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One 5G Ace
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Galaxy S21 Ultra
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What we think

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Updated January 10, 2024·

If a more affordable price is a priority and you are satisfied with a decent camera, go for the Motorola One 5G Ace; however, if you desire top-of-the-line camera quality and are willing to pay more, the Samsung Galaxy S21 Ultra might be the better choice. The Galaxy S21 Ultra has a significantly better camera system, and also boasts a much brighter and smoother display with a higher refresh rate, superior performance, and premium build quality with a glass back. It's also equipped with more advanced features like reverse wireless charging and a 4K video recording capability. On the other hand, the Motorola provides a durable plastic body and a headphone jack, which may appeal to those looking for these specific features. 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 Motorola One 5G Ace
  • Very good battery life
Advantages of the Samsung Galaxy S21 Ultra
  • Good for taking photos
  • Good for recording videos
  • Very good display quality
  • Good performance

Key differences

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Overall Camera Quality

4.3
One 5G Ace
Galaxy S21 Ultra
7.8
The Samsung Galaxy S21 Ultra has good overall camera quality, while the Motorola One 5G Ace has poor overall camera quality.

Photo Quality

4.3
One 5G Ace
Galaxy S21 Ultra
7.8
The Samsung Galaxy S21 Ultra takes good photos, while the Motorola One 5G Ace takes poor photos.

Video Quality

4.3
One 5G Ace
Galaxy S21 Ultra
7.1
The Samsung Galaxy S21 Ultra takes good videos, while the Motorola One 5G Ace takes poor videos.

Battery

9.6 Hours
One 5G Ace
Galaxy S21 Ultra
6.7 Hours
The Motorola One 5G Ace has 9.6 hours of battery life. The Samsung Galaxy S21 Ultra has 6.7 hours of battery life.

Cost

$99
One 5G Ace
Galaxy S21 Ultra
$423
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The Motorola One 5G Ace has a price of $99 and the Samsung Galaxy S21 Ultra costs $423.
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Key similarities

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Screen Size

The Motorola One 5G Ace has a screen size of 6.7 inches and the Samsung Galaxy S21 Ultra is 6.8 inches.

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How the Motorola One 5G Ace and the Samsung Galaxy S21 Ultra compare to other phones

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Spec Comparison

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Motorola One 5G AceSamsung Galaxy S21 Ultra
Motorola One 5G AceSamsung Galaxy S21 Ultra

GENERAL

Price
$99
$423
Brand
MotorolaSamsung
Operating System
AndroidAndroid
Release Date
January 14, 2021January 29, 2021

SCREEN

Screen Size
6.7"6.8"
Resolution
2400 x 10803200 x 1440
Variable refresh rate
NoYes
Pixels Per Inch
393515
Display Type
LCDOLED

INTERNAL

Processor
SD750SD888
Internal Storage
64 GB128 GB
RAM
6 GB12 GB

CAMERA

Overall Camera Quality Score
4.4/107.9/10
Photos Score
4.4/107.8/10
Videos Score
4.4/107.1/10
Rear Cameras
Main, Ultrawide, MacroMain, Ultrawide, Telephoto, Super Telephoto
Main Camera
48 megapixels108 megapixels + OIS

BATTERY

Battery Life
9.6 Hours6.7 Hours
Battery Capacity
5000 mAh5000 mAh
Wireless Charging
NoYes
Wireless charging Speed
0 W15 W
Reverse wireless charging
NoYes (4.5 watts)

PHYSICAL

Size
6.54" x 3"6.5" x 2.98"
Weight
7.51 oz8.01 oz
Back Material
PlasticGlass
Stereo Speakers
NoNo

CONNECTIVITY

Dual SIM
NoYes
Bluetooth Version
5.15.2
A2DP
YesYes
WiFi Version
56e
NFC
YesYes
US 5G Bands
(SA/NSA/Sub6)2, 5, 25, 41, 66, 71(SA/NSA/Sub6/mmWave)2, 5, 25, 41, 66, 71, 260, 261 (SA/NSA/Sub6)1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78

OTHER FEATURES

Biometric unlock
Face unlock, Fingerprint sensor: RearFace unlock, Fingerprint sensor: Under Display
Unlockable Bootloader
NoNo
Color
Volcanic Gray, Frosted SilverPhantom Black, Phantom Silver, Phantom Navy, Phantom Titanium
Stock Android
YesNo
SD Card
YesNo

Shopping

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Motorola One 5G Ace

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Dig into reviews and images

TechRadar

Mark Knapp | February 2021
"The Motorola One 5G Ace is on the affordable side, but you don’t get a phone that will expire quickly. It proves plenty speedy for most uses, and has 5G support to get you onto the latest cellular technology. With a 6.7-inch display, the Motorola One 5G Ace is about as big as they come. The display is plenty bright, as sharp as it needs to be, and even offers HDR to round out the package."

Samsung Galaxy S21 Ultra

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Dig into reviews and images

Android Authority

David Imel | January 2023
"The Galaxy S21 Ultra is a killer combo of great design, blazing-fast performance, a wonderful display, long-lasting battery life, and one of the most versatile camera systems you can get in a smartphone today."

Get a great deal on the Motorola One 5G Ace or the Samsung Galaxy S21 Ultra

About Motorola

Motorola, a well-known name in the smartphone world, has a long-standing legacy in the industry, with a history dating back to the early days of mobile phones. The brand is mostly known for striking a balance between affordability and functionality, as well as providing a clean and straightforward interface with their software skin on top of Android. While they have traditionally been prominent in the budget and midrange categories, Motorola has also occasionally ventured into the high-end category for smartphones.

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
141,300
Recommendations made
80,070
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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