Samsung Galaxy S21 5G vs Samsung Galaxy A05s - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 29, 2021 October 18, 2023
Release Year 2021 2023

Physical

Volume 85.33 cm³ 115.02 cm³
Screen Size to Weight Ratio 3.67 "/g 3.45 "/g
Weight 169 g 194 g
Height 151.7 mm 168 mm
Width 71.2 mm 77.8 mm
Thickness 7.9 mm 8.8 mm
Foldable Design No No
Available Colors
  • Phantom White
  • Phantom Gray
  • Phantom Violet
  • Phantom Pink
  • Silver
  • Black
  • Violet
  • Light Green

Display

Screen Size 6.2 " 6.7 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 85.9 % 82.9 %
Pixel Density 421 PPI 393 PPI
Refresh Rate 120 Hz 90 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 111.38 mAh/in²
Battery Density 46.88 mAh/cm³ 43.47 mAh/cm³
Battery Capacity 4000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Exynos 2100 (5 nm) - International Qualcomm SM6225 Snapdragon 680 4G (6 nm)
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International Octa-core (4x2.4 GHz Kryo 265 Gold & 4x1.9 GHz Kryo 265 Silver)
GPU Mali-G78 MP14 - International Adreno 610

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

Design

FeatureSamsung Galaxy S21 5GSamsung Galaxy A05sPractical Impact
Dimensions151.7 × 71.2 × 7.9 mm168 × 77.8 × 8.8 mmS21 5G is significantly more compact and easier to handle with one hand, A05s is bulkier
Weight169g194gS21 5G is noticeably lighter and more comfortable for extended use.

Display

FeatureSamsung Galaxy S21 5GSamsung Galaxy A05sPractical Impact
Size6.2"6.7"A05s offers a larger viewing area, better for media consumption. S21 is more pocketable
Resolution1080x24001080x2400Both offer the same sharpness
PPI421393S21 5G has a slightly sharper display
TechnologyAMOLEDPLS LCDS21 5G has superior contrast, deeper blacks, more vibrant colors and better outdoor visibility.
Refresh Rate120Hz90HzS21 5G offers smoother scrolling and animations
Brightness1300 nits0 nitsS21 5G is vastly superior for outdoor visibility in bright sunlight. A05s brightness is missing and might not be as visible outdoors.

Performance

FeatureSamsung Galaxy S21 5GSamsung Galaxy A05sPractical Impact
ChipsetExynos 2100 (5 nm)Snapdragon 680 (6 nm)S21 5G has a significantly more powerful processor for demanding tasks and gaming.
AnTuTu Score749,100260,000S21 5G is much faster in real-world performance, such as app loading and multitasking.
GPUMali-G78 MP14Adreno 610S21 5G provides superior graphics performance for gaming.

Camera

FeatureSamsung Galaxy S21 5GSamsung Galaxy A05sPractical Impact
Standard12MP f/1.850MP f/1.8A05s has higher resolution but pixel size is not defined. S21 has bigger pixel size with well known Sony sensor
Telephoto/Portrait64MP f/2.0N/AS21 5G offers optical zoom and better portrait capabilities
Selfie10MP f/2.213MP f/2.0A05s has slightly higher resolution and wider aperture for selfies.
Portrait (Depth)N/A2MP f/2.4A05s has a dedicated depth sensor for portrait mode.
MacroN/A2MP f/2.4A05s has a dedicated macro lens for close-up shots
Wide Angle + Macro12.2MP f/2.2N/AS21 5G has ultrawide lens for landscape photos
VideoUp to 8KUp to 1080pS21 5G allows for professional video recording with higher quality
DxOMark Mobile111N/AS21 5G has superior camera performance based on DxOMark.
DxOMark Selfie132N/AS21 5G has superior selfie camera performance based on DxOMark

Battery

FeatureSamsung Galaxy S21 5GSamsung Galaxy A05sPractical Impact
Capacity4000mAh5000mAhA05s has a larger battery, potentially offering longer battery life.
Charging25W fast charging25W fast chargingBoth have the same fast charging speed.
FeaturesWireless Charging, Reverse ChargingNon-removableS21 5G has wireless and reverse wireless charging features, adding convenience.

2. Key Differences Analysis

Samsung Galaxy S21 5G Advantages:

  • Superior Display: AMOLED panel with 120Hz refresh rate and higher brightness offers a much better viewing experience with vibrant colors, smooth animations, and excellent outdoor visibility.
  • Significantly Higher Performance: The Exynos 2100 chipset is significantly more powerful than the Snapdragon 680, providing a faster and smoother experience for gaming, multitasking, and demanding applications.
  • Advanced Camera System: Offers a more versatile camera system with telephoto zoom, higher video recording capabilities (8K), and superior image quality as supported by DxOMark scores. Includes OIS, autofocus features and RAW capture.
  • Premium Features: Includes wireless charging, reverse wireless charging, better audio with Dolby Atmos, and a more comprehensive set of sensors (barometer, gyroscope).
  • Better build quality: Corning Gorilla Glass Victus for screen protection

Samsung Galaxy A05s Advantages:

  • Larger Display: A larger 6.7" screen is better for media consumption and provides a more immersive experience.
  • Larger Battery: A larger 5000mAh battery potentially offers longer battery life, suitable for users who prioritize extended usage.
  • Newer OS: Comes with a newer version of android (Android 13).
  • Dedicated Macro & Depth Camera: Includes macro and depth cameras offering more photography options.
  • Slightly better selfie camera: Higher resolution and wider aperture selfie camera

Significant Trade-offs:

  • S21 5G: Smaller battery capacity compared to the A05s, potentially leading to shorter battery life. The price is not given.
  • A05s: Significantly weaker processor, lower quality display, less versatile camera system, and fewer premium features compared to the S21 5G. The screen protection is not defined.

3. User Profiles & Recommendations

Samsung Galaxy S21 5G Ideal Users:

  • Power Users: Users who demand high performance for gaming, multitasking, and resource-intensive apps.
  • Photography Enthusiasts: Users who want a versatile camera system with telephoto capabilities and high-quality video recording features, and RAW capture.
  • Media Consumers: Users who appreciate a high-quality display for watching videos and enjoy vibrant colors and smooth animations.
  • Users who value premium features: Those who want features like wireless charging, reverse charging, and great audio.

Specific Use Cases:

* Mobile gaming, High-end photo editing, 4K and 8K video recording, outdoor usage in bright sunlight.

Samsung Galaxy A05s Ideal Users:

  • Budget-Conscious Users: Users looking for an affordable phone with a large screen and a long-lasting battery.
  • Casual Users: Users who primarily use their phones for basic tasks like browsing, social media, and messaging.
  • Users who value battery life: Users who need a phone that will last them through the day and don't mind the weaker processor or screen.

    Specific Use Cases:

    • Long-lasting basic usage, media consumption with a large screen, casual mobile photography.

Price-to-Value Ratio:

  • Samsung Galaxy S21 5G: Offers a high price-to-value ratio for users who prioritize performance, camera quality, and a premium user experience.
  • Samsung Galaxy A05s: Provides a good price-to-value ratio for budget-conscious users who prioritize a large screen and long battery life over performance and premium features.

4. Decision Framework

Key Questions for Buyers:

  1. What is my budget? - This is often the primary factor, the A05s will be less expensive.
  2. How important is performance for my needs? - The S21 5G has a far superior processor.
  3. Do I need a superior camera and display experience? - The S21 5G excels in camera capabilities and display quality.

Scenario-Based Recommendations:

  • Scenario 1: High Performance & Quality: If you want the best performance, camera quality, and a premium viewing experience, and don't mind the smaller battery, choose the Samsung Galaxy S21 5G.
  • Scenario 2: Budget & Long Battery: If you are looking for an affordable phone with a large screen and long battery life and your needs are basic, go with the Samsung Galaxy A05s.
  • Scenario 3: Casual media and photography: If you are on a tight budget but want to enjoy some decent photos and want a large display for media, the A05s can be a good compromise, despite the inferior performance and display.

My Choice:

I would choose the Samsung Galaxy S21 5G.

Reasoning:

While the Samsung Galaxy A05s offers a larger battery and a more affordable price, the overall experience of the Samsung Galaxy S21 5G is far superior for my needs. The superior AMOLED display with its vibrant colors and smooth 120Hz refresh rate makes a huge difference for daily use, especially with better outdoor visibility. The significantly faster Exynos 2100 processor ensures that I can handle any app or game without lag or stuttering. The camera capabilities of the S21 5G are also compelling, offering much greater versatility with the telephoto lens and the ability to shoot higher quality videos. I value the inclusion of premium features like wireless charging, reverse charging, and stereo speakers. While I would have to manage the smaller battery, the trade-off is worth it for the massive boost in overall performance, and the premium user experience.

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.