Samsung Galaxy S21 5G vs Samsung Galaxy A23 5G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 September 2, 2022
Release Year 2021 2022

Physical

Volume 85.33 cm³ 106.84 cm³
Screen Size to Weight Ratio 3.67 "/g 3.35 "/g
Weight 169 g 197 g
Height 151.7 mm 165.4 mm
Width 71.2 mm 76.9 mm
Thickness 7.9 mm 8.4 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Black
  • Blue
  • White
  • Peach

Display

Screen Size 6.2 " 6.6 "
Resolution 1080 x 2400 1080 x 2408
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 82.5 %
Pixel Density 421 PPI 400 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits N/A

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 114.78 mAh/in²
Battery Density 46.88 mAh/cm³ 46.8 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM6375 Snapdragon 695 5G (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.2 GHz Kryo 660 Gold & 6x1.7 GHz Kryo 660 Silver)
GPU Mali-G78 MP14 - International Adreno 619

Connectivity

USB Version 3.2 2.0
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.2, OTG USB Type-C 2.0

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 15 14

Comparison Summary

Smartphone Comparison: Samsung Galaxy S21 5G vs. Samsung Galaxy A23 5G

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GSamsung Galaxy A23 5GPractical Impact
Design
Dimensions151.7 × 71.2 × 7.9 mm165.4 × 76.9 × 8.4 mmA23 5G is noticeably larger and may be less comfortable for single-hand use. S21 5G is more compact and pocketable.
Weight169g197gS21 5G is significantly lighter, making it more comfortable for prolonged use. A23 5G is heavier, which could be noticeable during extended use.
Display
Size6.2"6.6"A23 5G offers a larger viewing area, better for media consumption. S21 5G has a smaller, more manageable screen.
Resolution1080x24001080x2408Both offer similar sharpness, sufficient for most users.
Pixel Density (PPI)421400S21 5G has a slightly sharper display, but the difference is subtle.
TechnologyAMOLEDPLS LCDS21 5G's AMOLED offers superior blacks, contrast, and color vibrancy, as well as better power efficiency. A23 5G's LCD is less vibrant.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations.
Brightness1300 nits0 nitsS21 5G has much better outdoor visibility, especially in bright sunlight. A23 5G's brightness is unknown.
Performance
ChipsetExynos 2100 (5 nm)Qualcomm Snapdragon 695 5G (6 nm)S21 5G has a much faster chipset, providing significantly better performance for demanding tasks like gaming and multitasking. A23 5G has a mid-range chip suited for everyday tasks.
Antutu Score749,100418,000S21 5G has dramatically better overall performance.
GPUMali-G78 MP14Adreno 619S21 5G offers superior graphics performance, crucial for gaming.
Camera
Standard Camera Resolution12MP50MPA23 5G captures higher resolution images, however, S21 5G has a larger sensor.
Standard Camera Sensor Size1/1.76"1/2.76"S21 5G's larger sensor allows for better low-light performance.
Telephoto Camera64MPNoneS21 5G offers optical zoom capabilities, a significant advantage for capturing distant subjects.
Wide Angle LensNone5MPA23 5G has a dedicated wide-angle lens for capturing wider scenes.
Selfie Camera10MP8MPS21 5G has a slightly higher resolution front camera.
Video Recording (Max)8K@24fps1080p@30fpsS21 5G can capture much higher resolution, more detailed videos.
DXOMark Mobile Score111N/AS21 5G has superior image quality according to DXOMark scores
Battery
Capacity4000mAh5000mAhA23 5G has a larger battery, likely providing longer battery life.
Charging25W Fast Charging25W Fast ChargingBoth support fast charging.
Additional Battery FeaturesReverse charging, Wireless charging, Reverse Wireless ChargingBypass ChargingS21 5G has more versatile charging capabilities, including wireless options. A23 5G supports bypass charging which is beneficial for mobile gaming.
Software
Operating SystemAndroid 11 (Upgradable to 15)Android 12 (Upgradable to 14)S21 5G will receive software support up to android 15, while A23 5G will receive support up to android 14.
Connectivity
Wi-FiWiFi 6 (802.11ax)802.11acS21 5G offers faster Wi-Fi speeds and better performance in congested networks.
BluetoothBluetooth 5.0 LEBluetooth 5.1 LEA23 5G has a slightly newer Bluetooth version.
SIMDual SIM (Nano)Single SIM (Nano)S21 5G supports dual SIM usage, convenient for those who want to manage two phone numbers on one device.
Storage
Internal128 GB or 256 GBUnknownS21 5G offers larger storage options and its options are known.
RAM8GBUnknownS21 5G has a known amount of RAM, and has a larger RAM, which contributes to multitasking.
Expandable StorageNoNoNeither device allows for memory expansion.
Audio
Audio QualityDolby Atmos, Noise cancellation, Stereo SpeakersBasic audio featuresS21 5G offers superior audio quality for media consumption and clearer voice calls.
Security
Fingerprint SensorBasic fingerprint sensorSide-mounted fingerprint sensorA23 5G's side-mounted sensor may be more convenient.
Build Quality
Screen ProtectionCorning Gorilla Glass VictusCorning Gorilla Glass 5S21 5G has superior screen protection, offering better resistance to scratches and drops.
Sensors
SensorsBiometric: Fingerprint; Proximity: Proximity; Motion: Accelerometer, Compass, Gyroscope; Environmental: BarometerBiometric: Fingerprint; Motion: Accelerometer, Gyroscope; Environmental: Barometer; Proximity: Ultrasonic proximity virtualS21 5G has additional sensors: Proximity, Compass, Hall; A23 5G features: Ultrasonic proximity virtual

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Superior Performance: The Exynos 2100 chipset provides significantly faster processing speeds and better graphics, resulting in a smoother, more responsive user experience for gaming, multitasking and demanding apps.
  • High-Quality Display: The AMOLED screen offers vibrant colors, deeper blacks, better contrast, and excellent outdoor visibility, enhancing media consumption and daily usage.
  • Advanced Camera System: Includes a telephoto lens for optical zoom, superior image processing, higher resolution video recording (8K), and a better overall camera experience, especially in challenging lighting conditions.
  • Versatile Battery Features: Offers wireless charging, reverse wireless charging, and fast charging, adding flexibility to power management.
  • Enhanced Audio: Features Dolby Atmos, stereo speakers, and noise-canceling microphones for higher quality audio.
  • Superior Build Quality: Corning Gorilla Glass Victus for better screen protection.

Samsung Galaxy A23 5G Advantages:

  • Larger Display: 6.6-inch screen provides more viewing area for media consumption and multitasking.
  • Larger Battery: 5000mAh battery offers a significant advantage for longer battery life on a single charge.
  • Quadruple Camera System: Includes a wide-angle, macro, and depth sensor offering more versatility.
  • Newer Bluetooth: Features Bluetooth 5.1 LE, for slightly improved connectivity.
  • Bypass Charging: Features bypass charging, ideal for gamers.
  • Newer OS Base: Ships with a slightly newer base Android OS.

Significant Trade-offs:

  • S21 5G: Lacks dedicated wide-angle, macro, and portrait lens, and has a smaller battery. Also, has a smaller screen compared to A23 5G.
  • A23 5G: Notably slower processor, lower quality display, and less advanced camera system. Lacks wireless charging and telephoto capabilities. Also has missing values for RAM and internal storage.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G Ideal User:

  • Power Users: Individuals who prioritize high performance for gaming, demanding apps, and multitasking.
  • Photography Enthusiasts: Users who value superior image quality, optical zoom, and advanced camera features.
  • Media Consumers: Those who enjoy watching videos, movies, and streaming content on a high-quality display.
  • Users who prioritize build quality and durability: Those looking for a phone with premium screen protection and design.
  • Users who value premium features: Users who want wireless charging and other premium features.
  • Users who need better outdoor visibility: Those frequently using phones in bright sunlight.

Samsung Galaxy S21 5G Use Cases:

*   High-end mobile gaming
*   Professional photography and videography on-the-go.
*   Long-form media consumption.
*   Multitasking between apps.
*   Using the phone outdoors in bright conditions.

Samsung Galaxy A23 5G Ideal User:

  • Casual Users: Those who prioritize long battery life and a larger screen for basic tasks, media consumption, and casual photography.
  • Budget-Conscious Buyers: Users looking for a 5G phone with a large display and good battery life at a lower price point.
  • Users Who Like Versatile Camera Options: Users who want the flexibility of a wide-angle, macro, and portrait lens.
  • Users Who Need Bypass Charging: Gamers that tend to play mobile games often and want to game while charging.

Samsung Galaxy A23 5G Use Cases:

*   Daily use for social media, web browsing, and communication.
*   Longer periods of media consumption and web browsing without needing to recharge.
*   General photography for social media.
*   Mobile gaming while charging.
*   Users who appreciate a wider and larger display.

4. Decision Framework

Key Questions for Buyers:

  1. What is your primary use case for the phone? (Gaming, photography, daily use, etc.)
  2. Is display quality, performance, or battery life your highest priority?
  3. What is your budget, and are you willing to compromise on certain features?

Scenario-Based Recommendations:

  • Scenario 1: Performance & Camera Priority - If you need top-tier performance, a versatile camera system with zoom capabilities, and a superior display, the Samsung Galaxy S21 5G is the better option.
  • Scenario 2: Long Battery Life & Budget - If long battery life and a larger screen are more important than raw performance and camera quality, the Samsung Galaxy A23 5G is the more practical choice.
  • Scenario 3: Balancing Performance and Price - If you need a balance of solid performance and good battery life and a lower price point then the Samsung Galaxy A23 5G may be the better option. However, be prepared to make a lot of concessions on display, build, and camera quality.

My Choice

Given the detailed analysis, I would personally choose the Samsung Galaxy S21 5G. Here’s why:

  • Superior Performance: As someone who frequently uses demanding applications and enjoys mobile gaming, the significant performance advantage offered by the Exynos 2100 is critical. The A23 5G’s mid-range Snapdragon 695, while competent for daily use, simply can't match the fluidity and speed of the S21 5G.
  • Better Camera Quality: I value camera versatility and quality, and the S21 5G's telephoto zoom, larger sensor, and superior video capabilities are important for my usage. The DXOMark scores also reinforce this advantage.
  • Enhanced Display: The AMOLED display is a big deal for me since I watch a lot of media, offering significantly better visual quality. The brighter screen is also a necessity for the places I often use my phone in.
  • Premium Features: The additional features like wireless charging, reverse wireless charging, and the superior audio features make the S21 5G a more appealing and complete package.

Although the A23 5G has a larger battery and larger display, the sacrifices in overall performance, display quality, and camera capabilities aren’t worth it for me. The S21 5G represents a far superior experience in the areas that I value most.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

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