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The PerfectRec phone team Learn more
Updated January 10, 2024·
If you are looking for a more budget-friendly option, the Samsung Galaxy A13 will be much lighter on your wallet while offering basic smartphone necessities. However, the Samsung Galaxy S21 Ultra comes with a higher quality camera system suitable for both photos and videos, a more vibrant and sharper OLED screen with a higher refresh rate, and more powerful performance capabilities. It also supports features like wireless charging and has a more premium build with a glass back. In contrast, the A13 lacks these premium features but includes a headphone jack, which the S21 Ultra doesn't have. The decision comes down to whether the significant price difference justifies the S21 Ultra's superior display, camera quality, and additional features for your specific needs. 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 Samsung Galaxy A13
- 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
Overall Camera Quality
4.4
7.8
The Samsung Galaxy S21 Ultra has good overall camera quality, while the Samsung Galaxy A13 has poor overall camera quality.
The Samsung Galaxy S21 Ultra offers a very good software experience, good dynamic range, good low light performance, very good versatility, and good selfie quality, making it superior for photography lovers. In contrast, the Samsung Galaxy A13's camera falls short in all these areas with a poor ratings across and only a fair selfie quality, which is noticeable especially for users keen on high-quality images and versatile camera features.
Photo Quality
4.4
7.8
The Samsung Galaxy S21 Ultra takes good photos, while the Samsung Galaxy A13 takes poor photos.
The Samsung Galaxy A13 produces poor quality photos due to its subpar software experience, limited dynamic range, and weak performance in low light, in addition to poor camera versatility and a poor selfie camera, which is very important. In contrast, the Samsung Galaxy S21 Ultra delivers good quality photos with more advanced photo software, better dynamic range, enhanced low light capabilities, greater camera versatility, and a good selfie camera.
Video Quality
4.0
7.1
The Samsung Galaxy S21 Ultra takes good videos, while the Samsung Galaxy A13 takes poor videos.
The Samsung Galaxy A13 offers a lower video resolution and frame rate, resulting in lower quality videos compared to the Samsung Galaxy S21 Ultra, which is equipped with advanced video features such as HDR video support and can shoot at a higher frame rate, enhancing the clarity and smoothness of the footage. Additionally, the S21 Ultra has better video stabilization and low light performance, contributing to its superior video recording capabilities.
Battery
8.7 Hours
6.7 Hours
The Samsung Galaxy A13 has 8.7 hours of battery life. The Samsung Galaxy S21 Ultra has 6.7 hours of battery life.
Cost
$120
$423
$0
$100
$200
$300
$400
$500
$600
$700
The Samsung Galaxy A13 has a price of $120 and the Samsung Galaxy S21 Ultra costs $423.
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Key similarities
Screen Size
The Samsung Galaxy A13 has a screen size of 6.5 inches and the Samsung Galaxy S21 Ultra is 6.8 inches.
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How the Samsung Galaxy A13 and the Samsung Galaxy S21 Ultra compare to other phones
Spec Comparison
 |  | |
| Samsung Galaxy A13 | Samsung Galaxy S21 Ultra |
GENERAL | |||
|---|---|---|---|
| Price | |||
$120 | $423 | ||
Brand | |||
Brand | Samsung | Samsung | |
Operating System | |||
Operating System | Android | Android | |
Release Date | |||
Release Date | March 3, 2021 | January 29, 2021 | |
SCREEN | |||
|---|---|---|---|
Screen Size | |||
Screen Size | 6.5" | 6.8" | |
Resolution | |||
Resolution | 1600 x 720 | 3200 x 1440 | |
Variable refresh rate | |||
Variable refresh rate | No | Yes | |
Pixels Per Inch | |||
Pixels Per Inch | 270 | 515 | |
Display Type | |||
Display Type | LCD | OLED | |
INTERNAL | |||
|---|---|---|---|
Processor | |||
Processor | D700 | SD888 | |
Internal Storage | |||
Internal Storage | 64 GB | 128 GB | |
RAM | |||
RAM | 4 GB | 12 GB | |
CAMERA | |||
|---|---|---|---|
Overall Camera Quality Score | |||
Overall Camera Quality Score | 4.4/10 | 7.9/10 | |
Photos Score | |||
Photos Score | 4.5/10 | 7.8/10 | |
Videos Score | |||
Videos Score | 4.1/10 | 7.1/10 | |
Rear Cameras | |||
Rear Cameras | Main, Macro | Main, Ultrawide, Telephoto, Super Telephoto | |
Main Camera | |||
Main Camera | 50 megapixels | 108 megapixels + OIS | |
BATTERY | |||
|---|---|---|---|
Battery Life | |||
Battery Life | 8.7 Hours | 6.7 Hours | |
Battery Capacity | |||
Battery Capacity | 5000 mAh | 5000 mAh | |
Wireless Charging | |||
Wireless Charging | No | Yes | |
Wireless charging Speed | |||
Wireless charging Speed | 0 W | 15 W | |
Reverse wireless charging | |||
Reverse wireless charging | No | Yes (4.5 watts) | |
PHYSICAL | |||
|---|---|---|---|
Size | |||
Size | 6.48" x 3.01" | 6.5" x 2.98" | |
Weight | |||
Weight | 6.88 oz | 8.01 oz | |
Back Material | |||
Back Material | Plastic | Glass | |
Stereo Speakers | |||
Stereo Speakers | No | No | |
CONNECTIVITY | |||
|---|---|---|---|
Dual SIM | |||
Dual SIM | No | Yes | |
Bluetooth Version | |||
Bluetooth Version | 5.0 | 5.2 | |
A2DP | |||
A2DP | Yes | Yes | |
WiFi Version | |||
WiFi Version | 5 | 6e | |
NFC | |||
NFC | Yes | Yes | |
US 5G Bands | |||
US 5G Bands | (SA/NSA/Sub6/mmWave) 2, 5, 41, 48, 66, 71, 77 | (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 | |||
Biometric unlock | Face unlock, Fingerprint sensor: Side | Face unlock, Fingerprint sensor: Under Display | |
Unlockable Bootloader | |||
Unlockable Bootloader | No | No | |
Color | |||
Color | Black | Phantom Black, Phantom Silver, Phantom Navy, Phantom Titanium | |
Stock Android | |||
Stock Android | No | No | |
SD Card | |||
SD Card | Yes | No | |
Shopping
Samsung Galaxy A13
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Dig into reviews and images
Android Police
Taylor Kerns | March 2022
"Should you buy it? Yes. I like this phone a lot more than I expected to. Performance is great for the price, battery life is really strong, and compared to other phones in this price range, its cameras aren’t bad at all."
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 Samsung Galaxy A13 or the Samsung Galaxy S21 Ultra
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
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
152,100
Recommendations made
86,190
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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