Xiaomi Poco X3 NFC vs Samsung Galaxy A55 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date September 8, 2020 March 15, 2024
Release Year 2020 2024

Physical

Volume 119.33 cm³ 102.25 cm³
Screen Size to Weight Ratio 3.1 "/g 3.1 "/g
Weight 215 g 213 g
Height 165.3 mm 161.1 mm
Width 76.8 mm 77.4 mm
Thickness 9.4 mm 8.2 mm
Foldable Design No No
Available Colors
  • Cobalt Blue
  • Shadow Gray
  • Navy
  • Iceblue
  • Lilac
  • Lemon

Display

Screen Size 6.67 " 6.6 "
Resolution 1080 x 2400 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 84.6 % 85.8 %
Pixel Density 395 PPI 390 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness 450 nits N/A
HBM Brightness N/A 1000 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 115.98 mAh/in² 114.78 mAh/in²
Battery Density 43.24 mAh/cm³ 48.9 mAh/cm³
Battery Capacity 5160 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM7150-AC Snapdragon 732G (8 nm) Exynos 1480 (4 nm)
CPU Octa-core (2x2.3 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver) Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 618 Xclipse 530

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 12 18

Comparison Summary

1. Specifications Comparison

Design

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
Physical Size165.3 × 76.8 × 9.4 mm161.1 × 77.4 × 8.2 mmThe A55 is slightly more pocketable due to its reduced height and thickness.
Weight215g213gNegligible difference in hand.
Build Quality (Screen)Corning Gorilla Glass 5Corning Gorilla Glass VictusGalaxy A55 offers significantly better scratch and drop protection for the screen.

Display

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
Size6.67"6.6"Minimal difference; both offer a large viewing area.
Resolution1080x24001080x2340Virtually identical sharpness.
TechnologyIPS LCDAMOLEDA55's AMOLED provides superior contrast, deeper blacks, and potentially better battery life with dark mode. More vibrant colors.
Refresh Rate120Hz120HzBoth offer smooth scrolling and gaming.
Brightness0 nits0 nitsBoth have identical peak brightness at 0 nits

Performance

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
ChipsetQualcomm SM7150-AC Snapdragon 732G (8 nm)Exynos 1480 (4 nm)A55's newer chipset offers significantly better performance for demanding apps, multitasking, and gaming. More power efficient.
AnTuTu Score328,145713,393The A55 will feel much faster and smoother in everyday use.
GPUAdreno 618Xclipse 530The A55 has a much more powerful GPU, leading to better gaming performance and smoother graphics.

Camera

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
Main Camera64MP, f/1.89, 1/1.7" sensor50MP, f/1.8, 1/1.56" sensorA55 likely captures more light due to the larger sensor and wider aperture, resulting in better low-light performance.
Selfie Camera20MP, f/2.2, 1/3.4" sensor32MP, f/2.2, 1/2.8" sensorA55 captures more detailed selfies, especially in good lighting.
Wide Angle Lens13MP, f/2.213MP, f/2.2, 1/3.06" sensorSimilar wide-angle performance. A55 has slightly larger pixel size which allows it to capture more light.
Macro Lens2MP, f/2.45MP, f/2.4A55 captures more detailed macro shots.
Portrait Mode (depth)YesNoPoco X3 NFC has a dedicated portrait mode, but results may not be as good as software based portrait modes
Video Recording4K@30fps with EIS, 1080p@30/120fps4K@30fps with EIS, 1080p@30/60fpsA55 offers 1080p@60fps with EIS, which provides smoother video.
Video StabilizationNoYesA55 has digital image stabilization
Additional FeaturesQuadruple cameraTriple camera, Optical Stabilization (OIS), Ultra stable video, AutoFraming, All Pixel Omni- Directional PDAF, NPU AI Engine, Continuous shooting, Panorama, RAW 12 bits, DOL HDRGalaxy A55 comes with OIS that will significantly improve low-light and video quality

Battery

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
Capacity5160mAh5000mAhSimilar battery life.
Charging33W fast charging25W fast chargingPoco X3 NFC charges slightly faster.
Battery TypeLi-PolymerLi-IonLi-Polymer batteries tend to have a slightly longer lifespan and better temperature stability.

Software

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
OSAndroid 10 (up to 12)Android 14 (up to 18)A55 has a much newer OS, with more features, security updates, and longer software support.

Connectivity

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
WiFiWi-Fi 5Wi-Fi 6A55 offers faster and more reliable Wi-Fi connectivity.
Bluetooth5.15.3A55 has a more modern Bluetooth version, potentially offering improved range, speed, and power efficiency.
SIMDual SIM (Nano SIM + Nano SIM)Dual SIM (Nano SIM + Nano SIM / eSIM)A55 supports eSIM for added flexibility with carrier options.

Storage

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
Internal64GB or 128GB128GB or 256GBA55 offers more internal storage, which is useful for users who store a lot of photos, videos, and apps.
RAM6GB or 8GB8GB or 12GBA55 offers more RAM for smoother multitasking and demanding apps.
ExpandableNoNoNeither phone supports expandable storage.

Audio

FeatureXiaomi Poco X3 NFCSamsung Galaxy A55Practical Impact
AudioStereo Speakers, Noise cancellation microphone, 2 microphonesStereo Speakers, Dolby Atmos, Hi-Res AudioA55 provides richer and more immersive audio experience, especially with headphones.

2. Key Differences Analysis

Xiaomi Poco X3 NFC Advantages:

  • Faster Charging: Slightly faster 33W charging.
  • Lower initial cost: As an older device, the Poco X3 NFC is likely much cheaper.

Practical Implications:

  • The faster charging of the Poco X3 NFC provides a slightly more convenient charging experience.
  • The lower cost of the Poco X3 NFC makes it more accessible to budget-conscious consumers.

Samsung Galaxy A55 Advantages:

  • Superior Display: AMOLED display provides better contrast, colors, and power efficiency.
  • Significantly Better Performance: Newer and more powerful chipset and GPU for smoother experience.
  • Better Camera: Larger sensor and wider aperture in the main camera, OIS, and better selfie camera.
  • Newer Software: Comes with a more recent version of Android and longer software support.
  • Better Build Quality: Gorilla Glass Victus offers improved screen protection.
  • More Storage & RAM: Higher storage and RAM options are available.
  • Better Connectivity: Supports Wi-Fi 6 and newer Bluetooth.
  • eSIM support: For added carrier flexibility.

Practical Implications:

  • The A55 offers a much better overall user experience due to its superior display, performance, camera, and software.
  • The A55 is a more future-proof device with longer software support and better connectivity.

Trade-offs:

  • The A55 is likely more expensive than the Poco X3 NFC.
  • The Poco X3 NFC has slightly faster charging.

3. User Profiles & Recommendations

Xiaomi Poco X3 NFC Ideal User:

  • Budget-conscious users who prioritize basic smartphone functionality.
  • Users who don't play demanding games or use resource-intensive apps.
  • Users who value a large battery and slightly faster charging.

Use Cases:

  • Basic communication (calls, messaging, social media).
  • Casual web browsing and media consumption.
  • Users who are looking for a secondary phone.

Samsung Galaxy A55 Ideal User:

  • Users who want a premium smartphone experience without paying top-tier prices.
  • Users who prioritize camera quality, performance, and display quality.
  • Users who want a future-proof device with long-term software support.

Use Cases:

  • Photography and videography.
  • Gaming and running demanding apps.
  • Streaming videos and movies.
  • Professional use requiring multitasking and productivity.

Price-to-Value Ratio:

  • The Poco X3 NFC offers good value for users on a tight budget.
  • The A55 offers excellent value for users who want a well-rounded smartphone experience with high-end features.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Poco X3 NFC is significantly cheaper, but the A55 offers much more for the money.
  2. How important is performance and camera quality to you? The A55 is vastly superior in both areas.
  3. How long do you plan to use the phone? The A55 will receive software updates for much longer, making it a better long-term investment.

Scenario-Based Recommendations:

  • Scenario 1: Extremely tight budget: Choose the Poco X3 NFC as a functional and affordable option.
  • Scenario 2: Need a reliable daily driver with good performance and camera: Choose the Samsung Galaxy A55 for its well-rounded features and long-term support.
  • Scenario 3: Prioritize gaming and demanding apps: The Samsung Galaxy A55 is the clear winner due to its powerful processor and GPU.

What I Would Choose and Why

I would choose the Samsung Galaxy A55. While the Poco X3 NFC might be tempting due to its lower price, the A55 offers a vastly superior overall experience that justifies the extra cost.

Here's why:

  • Future-proofing: The newer processor, more RAM, updated software, and better connectivity of the A55 will ensure it remains a capable device for years to come. The Poco X3 NFC, being an older device, is already nearing the end of its software support.
  • Improved User Experience: The AMOLED display, better camera system with OIS, and smoother performance will significantly enhance my daily use. I value a good screen for media consumption and a reliable camera for capturing memories.
  • Longer Software Support: Samsung's commitment to providing multiple years of software updates ensures the A55 will remain secure and receive new features over time.
  • Better Performance: The much better Antutu score means faster app loading, and general better speeds!

While I acknowledge the appeal of the Poco X3 NFC's lower price, the long-term benefits and enhanced user experience of the Samsung Galaxy A55 make it the better choice for me. The performance difference alone is enough to justify the cost.

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.