Samsung Galaxy S21+ 5G vs Motorola Moto G55 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 September 6, 2024
Release Year 2021 2024

Physical

Volume 95.23 cm³ 96.6 cm³
Screen Size to Weight Ratio 3.35 "/g 3.63 "/g
Weight 200 g 179 g
Height 161.5 mm 161.6 mm
Width 75.6 mm 73.8 mm
Thickness 7.8 mm 8.1 mm
Foldable Design No No
Available Colors
  • Phantom Violet
  • Phantom Pink
  • Phantom Black
  • Phantom Silver
  • Phantom Gold
  • Phantom Red
  • Forest Grey
  • Smoky Green
  • Twilight Purple

Display

Screen Size 6.7 " 6.49 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.8 % 85.3 %
Pixel Density 394 PPI 405 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 106.93 mAh/in² 118.71 mAh/in²
Battery Density 50.4 mAh/cm³ 51.76 mAh/cm³
Battery Capacity 4800 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Mediatek Dimensity 7025 (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (2x2.5 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55)
GPU Mali-G78 MP14 - International IMG BXM-8-256

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 14
Maximum OS Version 15

Comparison Summary

1. Specifications Comparison

Design

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
Dimensions161.5 × 75.6 × 7.8 mm161.6 × 73.8 × 8.1 mmSamsung is slightly wider, Motorola is slightly thicker; negligible difference for most users in terms of hand feel and portability.
Weight200g179gMotorola is significantly lighter, making it more comfortable for extended one-handed use.

Display

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
Size6.7"6.49"Samsung has a slightly larger screen, beneficial for media consumption and multitasking, but the difference is not substantial for most uses.
Resolution1080x24001080x2400Identical sharpness; both displays are sharp enough for comfortable everyday use.
Pixel Density394 PPI405 PPINegligible difference in sharpness; both screens are virtually identical in clarity.
TechnologyAMOLEDIPS LCDSamsung's AMOLED offers superior contrast, deeper blacks, better viewing angles, and more vibrant colors, especially noticeable in media consumption.
Refresh Rate120Hz120HzBoth offer smooth scrolling and animations; similar experience for gaming and everyday use.
Brightness1300 nits0 nitsSamsung's display is significantly brighter, making it much easier to view outdoors, especially under direct sunlight. Motorola Moto G55 brightness data is missing.

Performance

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
ChipsetExynos 2100 (5 nm)Mediatek Dimensity 7025 (6 nm)Exynos 2100 is a higher-performing chipset, offering better overall speed and efficiency.
AnTuTu Score749,100470,000Samsung's higher score translates to significantly faster app loading, smoother multitasking, and better gaming performance; it performs intensive tasks with more ease.
GPUMali-G78 MP14IMG BXM-8-256Samsung’s GPU is superior for graphics-intensive tasks like gaming; expect smoother performance in demanding applications.

Camera

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
Main Camera12MP (f/1.8)50MP (f/1.8)Motorola's main camera captures more detail due to higher resolution, good for prints and cropping; Samsung offers good image quality too.
Telephoto + Portrait64MP (f/2.0)N/ASamsung's dedicated telephoto allows for better optical zoom and portrait shots; Motorola lacks this versatility.
Selfie Camera10MP (f/2.2)16MP (f/2.4)Motorola captures more detail in selfies; Samsung has a wider aperture, potentially better for low-light selfies.
Wide Angle LensN/A8MP (f/2.2)Motorola offers an ultra-wide angle for more creative shots, Samsung lacks this option.
Wide Angle + Macro12.2MP (f/2.2)N/ASamsung has a dedicated ultra-wide/macro camera for versatile close-up shots, Motorola does not have this.
VideoUp to 8K@24fpsUp to 1080p@60fpsSamsung can record much higher resolution video, better for professional-grade content, while Motorola is limited to 1080p.
DxOMarkMobile: 111N/ASamsung's camera performance is objectively better based on DxOMark benchmark, but Motorola is not tested.

Battery

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
Capacity4800mAh5000mAhMotorola has a slightly larger battery, potentially giving slightly longer battery life in practical use.
Charging25W Fast Charging30W Fast ChargingMotorola charges marginally faster, reducing charging times.
FeaturesWireless charging, reverse wireless chargingNoneSamsung provides more battery-related features, which can be useful for convenient power sharing, but no in-box charger

Software and Connectivity

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
OSAndroid 11 (upgradable to 15)Android 14Motorola has a newer operating system out of the box and may receive fewer future updates in comparison.
Wi-FiWi-Fi 6Wi-Fi 5Samsung supports a newer Wi-Fi standard for potentially faster and more stable connections.
Bluetooth5.05.3Motorola has a newer version of Bluetooth, which may offer slightly better battery efficiency and connectivity.
GPSGPS (L1+L5), Galileo (E1+E5a)GPS (L1+L5), BeiDou (B1), QZSSMotorola supports more satellite systems, potentially providing more accurate location tracking.
SIMDual SIM (Nano + eSIM)Dual SIM (Nano + eSIM)Both support Dual SIM with eSIM for digital carrier switching. Samsung supports using two SIMs simultaneously.

Other Features

FeatureSamsung Galaxy S21+ 5GMotorola Moto G55Practical Impact
Storage128/256 GB128/256 GBBoth come in 128 or 256 GB options, but neither has expandable storage.
RAM8GB8GBBoth are sufficient for smooth multitasking.
AudioDolby Atmos, Hi-Res, Stereo SpeakersDolby Atmos, Stereo SpeakersSamsung offers better audio output quality with Hi-Res audio and noise cancellation microphone.
SecurityBasic fingerprint sensorSide-mounted fingerprint sensorMotorola's side-mounted sensor is often faster and more convenient.
Build QualityGorilla Glass VictusGorilla Glass 5Samsung offers better screen protection against scratches and drops.
SensorsGyroscope, Barometer, Hall, GeomagneticAccelerometer, CompassSamsung includes additional sensors, beneficial for advanced features and gaming.

2. Key Differences Analysis

Samsung Galaxy S21+ 5G Advantages

  • Superior Display: AMOLED technology offers significantly better color vibrancy, contrast, and outdoor visibility due to higher brightness.
  • Significantly Better Performance: The Exynos 2100 chipset and Mali-G78 GPU offer much higher performance for demanding apps and gaming.
  • Advanced Camera System: Includes a telephoto lens for versatile zoom, higher video resolution capabilities (up to 8K), and better overall photo quality based on DxOMark.
  • Better Audio: Hi-Res audio and noise cancellation offer superior audio playback and call quality.
  • Wireless Charging: Supports both wireless charging and reverse wireless charging, adding convenience for battery management.
  • More Advanced Sensors: Comprehensive sensor suite including gyroscope, barometer, and more for enhanced features.
  • Superior Screen Protection: Corning Gorilla Glass Victus offers better protection against scratches and drops.

Motorola Moto G55 Advantages

  • Lighter Weight: 21g lighter, making it more comfortable for extended one-handed use.
  • Slightly Larger Battery: Potentially longer battery life due to the larger capacity.
  • Faster Charging: 30W fast charging will charge slightly faster than Samsung's 25W.
  • Newer OS: Comes with Android 14 out of the box.
  • Side-Mounted Fingerprint Sensor: Generally more convenient and faster.
  • Wide Angle lens: additional wide angle camera for landscape photography and creative shooting options.
  • More Satellite Systems for GPS: Offers more location accuracy and signal reliability due to more supported satellite systems for GPS.

Trade-offs

  • Samsung's older chipset vs newer Mediatek Dimensity 7025: While Samsung's processor is more powerful, it is older. The Motorola's is less powerful but is newer and more efficient.
  • Display Technology: AMOLED on the Samsung gives better viewing experience, but Motorola's LCD is not bad.
  • Camera Versatility vs Higher Resolution: Samsung has a telephoto and macro, which increases versatility, while Motorola has higher resolution main sensor and wide-angle lens for different use cases.
  • Battery vs Charging: Motorola has higher battery capacity and faster charging, but Samsung offers more wireless charging features.

3. User Profiles & Recommendations

Samsung Galaxy S21+ 5G Ideal Users

  • Power Users: Those who need top-tier performance for gaming, video editing, and multitasking.
  • Media Enthusiasts: Those who prioritize display quality for watching videos, browsing photos, and enjoying vivid graphics.
  • Photography/Videography Lovers: Users who want a versatile camera system with telephoto zoom and 8K video recording.
  • Travelers and Commuters: Those who need a bright display for outdoor use and wireless charging convenience on the go.

Specific Use Cases:

  • Mobile gaming with smooth frame rates
  • Professional photo and video editing
  • Outdoor photography in bright sunlight
  • High-quality media consumption with vibrant colors and deep blacks
  • Power users needing to run demanding applications

Motorola Moto G55 Ideal Users

  • Budget-Conscious Buyers: Those looking for a capable phone without breaking the bank.
  • Everyday Users: Those who primarily use their phone for social media, browsing, and casual photography.
  • Users Prioritizing Battery Life and Fast Charging: Users who value longevity and speed of charging over other aspects.
  • Those Who Prefer Lighter Devices: Users who find heavier phones uncomfortable or less ergonomic.

Specific Use Cases:

  • Social media browsing
  • Casual photography and selfies
  • Everyday mobile usage like calls, texts, and browsing
  • Users looking for the latest operating system
  • Long hours of use with less frequent charging
  • Users wanting a more ergonomic, lighter phone

Price-to-Value Ratio

  • The Samsung Galaxy S21+ 5G, while older, offers premium features, but may be more expensive or harder to find as it is not the latest model.
  • The Motorola Moto G55, being a newer model, is generally more affordable, offers a modern experience, but compromises on features.

4. Decision Framework

Key Questions for Buyers

  1. What is your primary use case? (Gaming, media, photography, daily use, etc.)
  2. What is your budget? (Are you willing to pay for a premium experience, or do you prefer more affordable option?)
  3. Which feature(s) are most important to you? (Display quality, performance, camera, battery life, etc.)

Scenario-Based Recommendations

  • Scenario 1: Performance and Camera are key: If you are a gamer or want the best camera experience, choose Samsung Galaxy S21+ 5G for its high-performance processor, telephoto camera, 8K video, and superior display.
  • Scenario 2: Budget-conscious and battery life is important: If you are on a budget and want a reliable phone for everyday use with good battery life and faster charging, choose Motorola Moto G55.
  • Scenario 3: Balanced performance and newer OS: If you want a modern phone with a newer operating system and good daily performance, consider Motorola Moto G55. The Mediatek Dimensity 7025 is adequate for most everyday tasks.
  • Scenario 4: Outdoor use and visual experience are paramount: For clear visibility in bright sunlight and superior viewing experience, the Samsung Galaxy S21+ 5G with it's 1300 nits screen brightness and AMOLED display is better.

What I would choose and why:

I would choose the Samsung Galaxy S21+ 5G.

My reasoning is as follows:

  • Superior Display Quality: The AMOLED screen with 1300 nits is a significant advantage for me, as I frequently use my phone outdoors. The vibrant colors and deep blacks are also something I value for media consumption.
  • Top-Tier Performance: The Exynos 2100 chipset and Mali-G78 GPU are important because I often use demanding applications and want a smoother experience, including gaming.
  • Camera Versatility: The telephoto lens and 8K video capabilities provide me with a more versatile photography and videography experience, which are important to me as I want to experiment with different types of photography and video recording.
  • Wireless Charging: The ability to charge wirelessly and reverse wireless charge is something that I find convenient.
  • Better Audio Quality: Having a Hi-Res audio and noise-canceling mic is also a great plus for media consumption and making calls.

While the Motorola Moto G55 offers a newer operating system, slightly better battery and faster charging, and it's lighter, these benefits don't outweigh the superior display, performance, camera, and overall user experience of the S21+ 5G in my use case. The older chipset isn't a massive issue when considering the performance difference, and the S21+ still performs extremely well even by today's standards. I prioritize display quality and performance, making the S21+ a better fit for me despite the fact that it's an older model and it could be more expensive due to it's premium specifications.

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
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Bridging technical complexity with engaging, accessible narratives.