Samsung Galaxy Note20 5G vs Xiaomi Redmi A2 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date August 21, 2020 March 24, 2023
Release Year 2020 2023

Physical

Volume 100.86 cm³ 115.25 cm³
Screen Size to Weight Ratio 3.49 "/g 3.4 "/g
Weight 192 g 192 g
Height 161.6 mm 164.9 mm
Width 75.2 mm 76.8 mm
Thickness 8.3 mm 9.1 mm
Foldable Design No No
Available Colors
  • Mystic Green
  • Mystic Bronze
  • Mystic Gray
  • Mystic Red
  • Mystic Blue
  • Aqua Blue
  • Classic Black
  • Sea Green

Display

Screen Size 6.7 " 6.52 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 89.2 % 81 %
Pixel Density 393 PPI 269 PPI
Refresh Rate N/A N/A
Typical Brightness N/A 400 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 95.79 mAh/in² 117.62 mAh/in²
Battery Density 42.63 mAh/cm³ 43.39 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes No
Chipset Exynos 990 (7 nm+) - Global Mediatek Helio G36 (12 nm)
CPU Octa-core (2x2.73 GHz Mongoose M5 & 2x2.50 GHz Cortex-A76 & 4x2.0 GHz Cortex-A55) - Global Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)
GPU Mali-G77 MP11 - Global PowerVR GE8320

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 microUSB 2.0

Software

Operating System Android Android
Initial OS Version 10 12
Maximum OS Version 13

Comparison Summary

1. Specifications Comparison

Design

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
Dimensions161.6 × 75.2 × 8.3 mm164.9 × 76.8 × 9.1 mmNote20 5G is more compact and easier to handle for some users. Redmi A2 is slightly larger.
Weight192g192gVirtually identical feel in hand.
Build Quality (Screen)Corning Gorilla Glass 6UnknownNote20 5G offers significantly better scratch and drop protection.

Display

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
Size6.7"6.52"Note20 5G provides a slightly larger viewing area for multimedia and gaming.
Resolution1080x2400720x1600Note20 5G delivers much sharper and clearer visuals, better for reading and detailed content.
PPI393269Note20 5G has noticeably crisper text and images.
TechnologyAMOLEDIPS LCDNote20 5G has superior contrast, deeper blacks, and more vibrant colors, enhancing the viewing experience.
Brightness0 nits0 nitsBrightness unkown
Refresh Rate60Hz60HzBoth provide a standard 60Hz refresh rate.

Performance

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
ChipsetExynos 990 (7 nm+)Mediatek Helio G36 (12 nm)Note20 5G is significantly faster and more responsive, handling demanding tasks with ease.
AnTuTu Score515,090127,000Note20 5G provides much smoother multitasking, faster app loading, and better gaming performance.
GPUMali-G77 MP11PowerVR GE8320Note20 5G offers superior graphics performance, allowing for better gaming and video editing.
RAM8 GB2 GB, 3 GB, or 4 GBNote20 5G has much more RAM, allowing for more apps to run in the background and smoother multitasking.

Camera

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
Main Camera12MP (f/1.8)8MP (f/2.0)Note20 5G captures better quality photos, especially in low light, due to wider aperture and larger sensor.
Selfie Camera10MP (f/2.0)5MP (f/2.2)Note20 5G captures sharper and more detailed selfies.
Telephoto Lens64MP (f/2.0)NoneNote20 5G allows for optical zoom capabilities, capturing distant subjects with better clarity.
Wide Angle Lens12MP (f/2.2)NoneNote20 5G allows for capturing wider scenes, fitting more into the frame.
Video RecordingUp to 8K@24fpsUp to 1080p@30fpsNote20 5G offers significantly higher resolution video recording for professional-grade video content.

Battery

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
Capacity4300mAh5000mAhRedmi A2 potentially provides longer battery life.
Charging25W Fast Charging10W Fast ChargingNote20 5G charges much faster, reducing downtime.
Wireless ChargingYesNoNote20 5G offers convenient wireless charging.
Reverse ChargingYesNoNote20 5G can be used to charge other devices wirelessly.

Storage

FeatureSamsung Galaxy Note20 5GXiaomi Redmi A2Practical Impact
Internal Storage128/256 GB32/64 GBNote20 5G offers significantly more space for apps, photos, videos, and other files.
Expandable StorageNoNoNeither phone supports expandable storage

2. Key Differences Analysis

Samsung Galaxy Note20 5G Advantages:

  • Superior Display: AMOLED, higher resolution, and higher pixel density provide a much better viewing experience. Practical Impact: Better for media consumption, gaming, and reading.
  • Significantly More Powerful Performance: Exynos 990 chipset and 8GB RAM ensure smooth multitasking, faster app loading, and better gaming. Practical Impact: Handles demanding apps and games without lag.
  • Advanced Camera System: Multiple lenses (telephoto, wide-angle), higher resolution sensors, and 8K video recording capabilities. Practical Impact: More versatile photography options and higher-quality photos and videos.
  • Faster Charging & Wireless Charging: 25W fast charging and wireless charging support for added convenience. Practical Impact: Quickly recharge the phone and use wireless charging pads.
  • More Connectivity Features: Wi-Fi 6, Bluetooth 5.0 with more codecs, and GPS with Galileo support. Practical Impact: Faster and more reliable wireless connections and improved location accuracy.
  • eSIM Support: Practical Impact: More flexibility in choosing mobile providers.

Xiaomi Redmi A2 Advantages:

  • Larger Battery: Potentially longer battery life due to the larger 5000mAh capacity. Practical Impact: Less frequent charging.
  • Newer OS on release: Practical Impact: More recent software.
  • Affordability: Likely significantly cheaper than the Note20 5G. Practical Impact: Good choice for budget-conscious buyers.

Significant Trade-offs:

  • Note20 5G: Price. It will be considerably more expensive.
  • Redmi A2: Performance. The Redmi A2 will feel slow and unresponsive compared to the Note20 5G, especially with demanding apps and multitasking. Camera quality will also be significantly lower.

3. User Profiles & Recommendations

Samsung Galaxy Note20 5G:

  • Ideal Users:
    • Power users who need fast performance for gaming, video editing, and multitasking.
    • Photography enthusiasts who want a versatile camera system with high-quality photo and video capabilities.
    • Users who prioritize display quality for media consumption.
  • Use Cases:
    • Mobile gaming with demanding graphics.
    • Creating high-resolution videos for social media or professional use.
    • Working on the go with multiple apps open simultaneously.

Xiaomi Redmi A2:

  • Ideal Users:
    • Budget-conscious users who need a basic smartphone for calls, messaging, and light social media use.
    • Users who prioritize long battery life over performance and camera quality.
    • First-time smartphone users.
  • Use Cases:
    • Basic communication (calls and messages).
    • Casual browsing and social media use.
    • As a secondary phone for travel or emergencies.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The price difference is substantial.
  2. What are your primary use cases? Basic tasks vs. demanding apps/gaming/photography.
  3. How important is display quality and camera performance? These are major differentiators.

Scenario-Based Recommendations:

  • Scenario 1: Budget is limited, and basic functionality is sufficient. Choose the Xiaomi Redmi A2.
  • Scenario 2: Performance and camera quality are important, and the budget allows. Choose the Samsung Galaxy Note20 5G.
  • Scenario 3: A balance of features and price is desired. Consider alternative phones in the mid-range category.

My Choice

If I were to choose between these two phones, I would pick the Samsung Galaxy Note20 5G. While it's an older device, its superior performance, display, and camera system provide a much better overall user experience. The Redmi A2 is a good option for users on an extremely tight budget, but the performance trade-offs are too significant for my needs. I value smooth multitasking, good photo/video quality, and a vibrant display, all of which the Note20 5G delivers exceptionally well. Furthermore, features like wireless charging and reverse wireless charging add a layer of convenience that the Redmi A2 simply cannot match.

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.