Samsung Galaxy S21 5G vs Motorola Moto G23 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 January 24, 2023
Release Year 2021 2023

Physical

Volume 85.33 cm³ 99.66 cm³
Screen Size to Weight Ratio 3.67 "/g 3.53 "/g
Weight 169 g 184.3 g
Height 151.7 mm 162.7 mm
Width 71.2 mm 74.7 mm
Thickness 7.9 mm 8.2 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Pearl White
  • Steel Blue
  • Matte Charcoal

Display

Screen Size 6.2 " 6.5 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 83.9 %
Pixel Density 421 PPI 270 PPI
Refresh Rate 120 Hz 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1300 nits 400 nits

Hardware

Battery Capacity per Screen Area 104.06 mAh/in² 118.34 mAh/in²
Battery Density 46.88 mAh/cm³ 50.17 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek MT6769Z Helio G85 (12 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G78 MP14 - International Mali-G52 MC2

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 13
Maximum OS Version 15

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy S21 5GMotorola Moto G23Practical Impact
Design
Dimensions151.7 × 71.2 × 7.9 mm162.7 × 74.7 × 8.2 mmS21 is more compact and easier to handle; G23 is larger and may be less comfortable for single-handed use.
Weight169g184.3gS21 is lighter and more comfortable for extended use and portability. G23 is heavier, potentially feeling bulkier.
Display
Size6.2"6.5"G23 has a slightly larger screen, better for media consumption, but S21 is more pocketable.
Resolution1080x2400720x1600S21's display is significantly sharper with far more detail, ideal for text and high-resolution content. G23 has a lower pixel density, potentially looking less sharp.
PPI421270S21's sharper display provides a noticeably better viewing experience. G23's display may appear pixelated.
TechnologyAMOLEDIPS LCDS21's AMOLED display offers richer colors, deeper blacks, and better contrast; more vibrant than the G23's LCD and more power efficient in dark mode.
Refresh Rate120Hz90HzS21’s 120Hz display offers slightly smoother animations and scrolling compared to G23’s 90Hz.
Brightness1300 nits0 nitsS21 has much better outdoor visibility with significantly higher brightness, whereas the G23's brightness is not specified and assumed to be lower.
Performance
ChipsetExynos 2100 (5 nm)Mediatek Helio G85 (12 nm)S21 is significantly faster, offering smoother multitasking and gaming experiences. G23 is slower and may struggle with demanding apps or games.
AnTuTu Score749,100225,154S21 offers dramatically better overall performance (app loading, multitasking, gaming) and should feel snappier in day-to-day use.
GPUMali-G78 MP14Mali-G52 MC2S21 provides a much better graphics performance for gaming and graphically intensive applications.
Camera
Main Camera12MP (f/1.8, 1.80µm, Sony IMX555)50MP (f/1.8, 0.64µm)G23 offers higher resolution but S21's sensor size is larger, possibly better low-light performance.
Telephoto64MP (f/2.0, 0.80µm, Samsung Bright S5KGW2)NoneS21 has a dedicated telephoto lens, allowing for optical zoom, while G23 relies on digital zoom.
Ultrawide + Macro12.2MP (f/2.2, 1.40µm, Sony IMX563)NoneS21 provides more versatile ultrawide angle shots with larger sensor and pixel size, better for capturing landscapes.
Selfie Camera10MP (f/2.2, 1.22µm, Sony IMX374)16MP (f/2.5, 1.00µm)G23 has higher resolution, S21 has a slightly wider aperture. S21’s larger pixel size on its sensor could result in better low light selfies.
Wide Angle LensNone5MP (f/2.2)G23 offers a wide angle lens for more expansive landscape shots.
Macro LensNone2MP (f/2.4)G23 offers a macro lens for extreme close-up photography.
Video RecordingUp to 8K@24fpsUp to 1080p@30fpsS21 offers professional-grade video quality, with higher resolution and more slow-motion capabilities than the G23.
DxoMark Mobile Score111Not TestedS21 has been thoroughly tested and scored by DxoMark, ensuring reliable camera performance, whereas the G23’s camera performance is unknown.
DxoMark Selfie Score132Not TestedS21 has been thoroughly tested and scored by DxoMark, ensuring reliable camera performance, whereas the G23’s camera performance is unknown.
Camera Features4K Video, 8K Video, Optical zoom, OIS, Continuous autofocusDigital zoom, Digital image stabilizationS21 offers a wider range of features, enhancing the quality and versatility of photos and videos.
Battery
Capacity4000mAh5000mAhG23 has a larger battery capacity and may last longer on a single charge. Battery life depends on usage.
Charging25W Fast Charging30W Fast ChargingG23 has slightly faster charging, resulting in quicker battery replenishment.
Wireless Charging15WNoneS21 supports 15W wireless charging, adding convenience for users.
Reverse Wireless Charging4.5WNoneS21 can charge other devices wirelessly.
Software
OSAndroid 11 (upgradable to 15)Android 13 (no known max version)G23 has a newer version of Android out of the box. S21 has 4 years of OS updates.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 5S21 has faster speeds, lower latency and better performance in crowded networks.
Bluetooth5.05.1G23 has a slightly newer version, though both offer similar functionality.
GPSL1+L5, E1+E5aStandard + SUPLS21 has higher location accuracy through more satellite systems.
Storage
Internal128GB / 256GB64GB / 128GBS21 has an option for more storage, allowing users to store more photos, videos, and apps.
RAM8GB4GB / 8GBBoth offer 8GB variants, allowing users to multitask well.
ExpandableNoNoNeither phone allows storage expansion via SD card.
Audio
QualityDolby Atmos, Stereo Speakers, Noise cancellation micDolby Atmos, Stereo Speakers, 2 microphonesBoth offer similar audio quality, but the S21 has added noise cancellation for voice calls, while the G23 has 2 mics.
Security
Featuresbasic fingerprint sensorside-mounted fingerprint sensorG23 offers a more modern and convenient side-mounted fingerprint sensor.
Build Quality
Screen ProtectionGorilla Glass VictusUnknownS21 has more advanced scratch and drop protection for the display. G23's screen protection is unknown.
Sensors
SensorsAccelerometer, Compass, Gyroscope, BarometerAccelerometer, GyroscopeS21 includes more sensors, ideal for more demanding use cases. Barometer for measuring air pressure and elevation. The compass is useful for navigation apps.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Superior Display: Significantly higher resolution, pixel density, AMOLED technology, higher brightness, and 120Hz refresh rate offer a much better visual experience.
  • Faster Performance: The Exynos 2100 chipset and Mali-G78 GPU provide substantially better performance for gaming and multitasking.
  • Advanced Camera System: Offers optical zoom, OIS, 4K/8K video recording, and a more versatile camera setup (telephoto, ultrawide, and wide + macro lens), all features that the G23 doesn't have.
  • Wireless Charging: Includes 15W wireless charging and reverse wireless charging for added convenience.
  • Better Connectivity: Supports the latest Wi-Fi 6 standard, more satellite systems for better GPS accuracy, and more Bluetooth features.
  • Premium Build Quality: Corning Gorilla Glass Victus provides significantly better screen protection and build quality.
  • More Sensors: Includes Barometer, Compass, and Hall for greater versatility.
  • Audio Quality: Has a noise cancelling microphone for clearer calls and recordings.
  • Software Support: Guaranteed 4 years of software updates
  • DXoMark Scores: Reliable camera performance is backed by thorough testing and scoring from DXoMark.

Motorola Moto G23 Advantages:

  • Larger Battery: The 5000mAh battery may provide longer battery life.
  • Slightly Faster Charging: 30W fast charging vs 25W.
  • Newer OS: Ships with Android 13 out of the box.
  • Wider Angle and Macro Lens: Offers a wider angle lens and a macro lens for taking a variety of shots.
  • Side-Mounted Fingerprint Sensor: A more convenient placement than the S21's in-screen sensor.
  • Lower Price: Likely to be more budget-friendly.

Trade-offs:

  • The S21 sacrifices battery capacity and a newer OS for superior performance, display, camera, and build quality.
  • The G23 provides longer battery and a more modern OS at the cost of significantly lower performance, screen quality and camera capabilities.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G:

  • Ideal User: Users who prioritize a premium visual experience, smooth performance, and excellent camera quality. Gamers, content creators, and those who consume a lot of media will benefit significantly.
  • Use Cases: High-end gaming, video recording, photography, multitasking demanding apps, watching movies and streaming content. Outdoor usage in bright light.
  • Price-to-Value: Despite being an older flagship, it offers a significantly better experience than the G23, especially when available at a reduced price, which provides a high-value proposition for those seeking high-end performance without paying current flagship prices.

Motorola Moto G23:

  • Ideal User: Budget-conscious users who need a reliable device for everyday tasks with longer battery life. Users who do not prioritize high-end performance or camera capabilities.
  • Use Cases: Basic web browsing, social media, casual gaming, and general use with longer battery life.
  • Price-to-Value: It offers a more affordable option with a larger battery and a newer OS, representing good value for basic smartphone use.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The G23 will likely be cheaper. The S21, when available at discounted prices, can offer a higher value.
  2. How important is display and performance? If you value visual fidelity, smooth performance, and more demanding tasks, the S21 is a clear choice. For basic usage, the G23 is acceptable.
  3. What are your camera needs? If you need versatile camera capabilities, the S21 is a better choice. For simple snapshots and videos, the G23 is sufficient.

Scenario-Based Recommendations:

  • Scenario 1 (Performance & Media Focused): If you want a high-end device for gaming, streaming, and photography, and you value screen quality and performance, choose the Samsung Galaxy S21 5G.
  • Scenario 2 (Budget & Battery Focused): If your primary concern is affordability and battery life, and you don’t need top-tier performance or a high-end camera, the Motorola Moto G23 is a good option.
  • Scenario 3 (Balanced User): If you want a good all-around phone with a good performance and camera, consider the Galaxy S21.
  • Scenario 4 (Casual User): If your needs are basic, and you prioritize battery life and newer software, the Moto G23 is a good choice.

My Choice

Given the information provided, I would choose the Samsung Galaxy S21 5G. While it is an older model, the performance and display quality differences are so significant that they outweigh the benefits of the G23. The drastically superior display, higher performance, and better camera system make the S21 a much more compelling device for my use case. I prioritize a smooth, responsive experience, especially when using demanding apps or gaming. The inclusion of features like wireless charging and a more robust build also align with my preferences. While the G23 has a newer OS and larger battery, the core experience offered by the S21 is simply on another level in terms of performance, display quality, and camera versatility.

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.

Key Strengths:

  • Mobile technology analysis
  • Digital media communication
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Bridging technical complexity with engaging, accessible narratives.