Samsung Galaxy S21 FE 5G vs Xiaomi Redmi A2 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 7, 2022 March 24, 2023
Release Year 2022 2023

Physical

Volume 91.64 cm³ 115.25 cm³
Screen Size to Weight Ratio 3.62 "/g 3.4 "/g
Weight 177 g 192 g
Height 155.7 mm 164.9 mm
Width 74.5 mm 76.8 mm
Thickness 7.9 mm 9.1 mm
Foldable Design No No
Available Colors
  • White
  • Graphite
  • Lavender
  • Olive
  • Aqua Blue
  • Classic Black
  • Sea Green

Display

Screen Size 6.4 " 6.52 "
Resolution 1080 x 2340 720 x 1600
Aspect Ratio 19.5:9 20:9
Screen-to-Body Ratio 86.7 % 81 %
Pixel Density 403 PPI 269 PPI
Refresh Rate 120 Hz 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 109.86 mAh/in² 117.62 mAh/in²
Battery Density 49.11 mAh/cm³ 43.39 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) - Version 1 Mediatek Helio G36 (12 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - Version 1 Octa-core (4x2.2 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53)
GPU Adreno 660 - Version 1 PowerVR GE8320

Connectivity

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

Software

Operating System Android Android
Initial OS Version 12 12
Maximum OS Version 16

Comparison Summary

Okay, let's break down the Samsung Galaxy S21 FE 5G and Xiaomi Redmi A2. I'll try to keep the tech talk approachable and focus on what these specs mean for you.

Smartphone Showdown: Samsung Galaxy S21 FE 5G vs. Xiaomi Redmi A2

Here's a detailed look at how these two phones stack up, keeping user experience at the forefront.

1. Specifications Breakdown

FeatureSamsung Galaxy S21 FE 5GXiaomi Redmi A2Real-World Implications
Design
Dimensions155.7 x 74.5 x 7.9 mm164.9 x 76.8 x 9.1 mmS21 FE is smaller, thinner, and likely more pocketable; A2 is larger and bulkier.
Weight177g192gS21 FE is noticeably lighter, making it comfortable for extended use. A2 is heavier
Display
Size6.4"6.52"Both offer similar screen size but the difference is marginal.
Resolution1080 x 2340720 x 1600S21 FE's screen is much sharper and crisper, better for reading and viewing content.
PPI403269S21 FE has significantly higher pixel density leading to much sharper images and text
TechnologyAMOLEDIPS LCDS21 FE's AMOLED display provides superior contrast, deeper blacks, more vibrant colors, and power efficiency for dark themes.
Refresh Rate120Hz60HzS21 FE offers smoother scrolling and animations, a more fluid experience.
Brightness1300 nits0 nitsS21 FE is much brighter, providing better visibility in direct sunlight and outdoor use.
Performance
ChipsetSnapdragon 888 (5nm)Helio G36 (12nm)S21 FE has a flagship processor for smoother multitasking, faster app loading, and demanding games; A2 is much slower.
AnTuTu Score923,836127,000S21 FE is drastically faster, ensuring smooth performance even under heavy loads. A2 struggles with demanding tasks.
GPUAdreno 660PowerVR GE8320S21 FE handles graphics-intensive tasks and games much better than the A2
Battery Life
Capacity4500 mAh5000 mAhA2 has a slightly larger battery and might last longer on a single charge despite the weaker processor
Charging25W fast10W fastS21 FE charges considerably faster, reducing downtime; A2 is slower, resulting in longer charging times.
Features15W Wireless, Reverse wirelessNon-removableS21 FE offers convenient wireless charging and the ability to charge other devices wirelessly.
Camera
Main Camera12MP, f/1.88MP, f/2.0S21 FE's main sensor has better low-light performance and captures more detail with a larger sensor and wider aperture.
Telephoto/Portrait Camera8MP, f/2.0N/AS21 FE has a dedicated telephoto lens for better zoom and portrait photography.
Selfie Camera32MP, f/2.25MP, f/2.2S21 FE captures much more detailed selfies.
Wide Angle/Macro Camera13MP, f/2.2N/AS21 FE gives versatility with wide and macro shots
Video4K@60fps, HDR, EIS1080p@30fpsS21 FE shoots high-quality video with better detail and stabilization. A2 is basic in this area.
DXoMarkMobile:117, Selfie:127N/AS21 FE has a superior camera compared to A2.
Camera FeaturesExtensive Feature SetBasic Feature SetS21 FE gives flexibility with optical zoom, OIS, RAW and night mode while A2 is basic with digital zoom and dual camera setup.
Software
OSAndroid 12 (upgradable)Android 12S21 FE will receive more Android version updates with Android 16 as the max version while A2 does not have a max version set.
Connectivity
Wi-FiWi-Fi 6Wi-Fi 4S21 FE offers faster and more stable Wi-Fi connections.
Bluetooth5.0 LE5.0 LEBoth offer basic Bluetooth functionality but S21 FE offers more features like APT-x
GPSGalileoN/AS21 FE has better GPS accuracy and more satellite coverage for navigation.
Storage
Internal Storage128/256 GB32/64 GBS21 FE provides significantly more storage for apps, media, and files.
RAM6/8 GB2/3/4 GBS21 FE handles multitasking and heavy applications significantly better.
Expandable StorageNoNoNeither phone offers expandable storage.
Audio
Audio QualityDolby Atmos, Stereo SpeakersBasic Audio FeaturesS21 FE offers a significantly better audio experience with immersive sound and clearer calls
Security
FeaturesFingerprint SensorBasic Security FeaturesS21 FE provides enhanced security with a fingerprint sensor.
Build Quality
Screen ProtectionGorilla Glass VictusUnknownS21 FE has superior screen protection with Gorilla Glass Victus, offering enhanced durability and scratch resistance.
SensorsProximity, Compass, Gyroscope, BarometerAccelerometer, Ultrasonic proximity virtualS21 FE has a much wider variety of sensors offering many features and an enhanced overall experience, ideal for advanced tasks and gaming applications.

2. Key Insights

Samsung Galaxy S21 FE 5G:

  • Strengths:

    • Flagship Performance: The Snapdragon 888 is a powerhouse, handling demanding tasks, gaming, and multitasking with ease.
    • Stunning Display: The AMOLED screen with 120Hz refresh rate is vibrant, smooth, and sharp, ideal for consuming content.
    • Versatile Camera: The triple-lens setup, with telephoto and wide-angle options, takes great photos and videos in any situation.
    • Premium Features: Offers wireless charging, reverse wireless charging, and a robust sensor suite.
  • Competitive Advantages:

    • Superior display technology, smoother performance, and much better camera system than the Redmi A2.
    • More versatile and premium features like wireless charging and better security.

Xiaomi Redmi A2:

  • Strengths:

    • Affordability: Designed as a budget-friendly option.
    • Battery Life: Larger battery for extended usage between charges.
    • Basic Functionality: Covers the basics of smartphone use like calls, texts, and some basic apps.
  • Competitive Advantages:

    • Larger battery capacity with 5000mAh, a slightly taller screen size, and a low price-point
  • Trade-offs/Limitations:

    • Redmi A2: Significantly weaker performance, a basic display, limited camera capabilities, and slower charging. It lacks many advanced features.
    • Galaxy S21 FE 5G: No expandable storage. No charger in the box

3. User Profiles and Recommendations

Samsung Galaxy S21 FE 5G is best for:

  • Power Users: Those who demand smooth performance, excellent multitasking, and heavy app usage.
  • Multimedia Enthusiasts: Those who enjoy consuming high-quality video content on a sharp, vibrant display.
  • Photography Lovers: Users who value versatile camera setups with good photo and video capabilities.
  • Gamers: Those who need a powerful device that can handle graphic intensive games.
  • Tech Savvy Users: Those who value modern features like wireless charging and a variety of sensors.

Xiaomi Redmi A2 is best for:

  • Budget Conscious Users: Those who need a basic smartphone at a very low price point.
  • First-Time Smartphone Buyers: Those who are new to smartphones and don't require advanced features or high performance.
  • Light Users: Those who mainly use their phones for basic tasks like calls, messaging, and social media browsing.
  • Users Prioritizing Battery Life: Those who need a phone that can last throughout the day on a single charge.

4. Buying Decision Framework

Here are three questions to help you choose between these two phones:

  1. How Important is Performance to You?
    • If you need smooth multitasking, gaming, and rapid app loading, the S21 FE is the only way to go.
    • If you only need basic functionality and don't mind a slower experience, the Redmi A2 is fine.
  2. How Much Do You Value Display Quality?
    • If you want vibrant colors, sharp details, and smooth scrolling, the S21 FE is superior.
    • If you're okay with a standard display for basic tasks, the Redmi A2 is sufficient.
  3. What is Your Budget?
    • If you have a higher budget and want a top-tier experience, the S21 FE is the better choice.
    • If you have a very tight budget and need a functional, bare-bones device, the Redmi A2 could be considered.

Scenario-Based Recommendations:

  • Scenario: You are a student who needs a reliable phone for research, social media, and occasional gaming.

    • Recommendation: The Galaxy S21 FE 5G offers better value for money.
  • Scenario: You are a parent who only needs a basic phone for calls and texts.

    • Recommendation: The Redmi A2 will be sufficient for your needs and a more affordable option.
  • Scenario: You are a photographer who wants to capture high quality content.

    • Recommendation: The Galaxy S21 FE 5G is the clear choice.

Final Thoughts and My Choice

While the Xiaomi Redmi A2 is a functional device that hits a very low price point, it's quite clear that the Samsung Galaxy S21 FE 5G offers a far superior experience. The differences in performance, display quality, camera capabilities, and features are significant.

If I had to choose, I would definitely pick the Samsung Galaxy S21 FE 5G. The smooth performance and the beautiful display alone are enough for me to choose it. The versatility of the camera system and the additional features, like wireless charging and a robust sensor suite, make it a much more complete and satisfying smartphone experience. I understand that the Redmi A2 is much cheaper but the S21 FE offers significantly more value for money and a more compelling mobile experience. It is, without a doubt, the phone that would better fit into my daily life and offer the best tools for creativity, productivity and entertainment.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.