Samsung Galaxy A02 vs Samsung Galaxy A55 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 27, 2021 March 15, 2024
Release Year 2021 2024

Physical

Volume 113.27 cm³ 102.25 cm³
Screen Size to Weight Ratio 3.16 "/g 3.1 "/g
Weight 206 g 213 g
Height 164 mm 161.1 mm
Width 75.9 mm 77.4 mm
Thickness 9.1 mm 8.2 mm
Foldable Design No No
Available Colors
  • Black
  • Blue
  • Navy
  • Iceblue
  • Lilac
  • Lemon

Display

Screen Size 6.5 " 6.6 "
Resolution 720 x 1600 1080 x 2340
Aspect Ratio 20:9 19.5:9
Screen-to-Body Ratio 81.9 % 85.8 %
Pixel Density 270 PPI 390 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1000 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 114.78 mAh/in²
Battery Density 44.14 mAh/cm³ 48.9 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Mediatek MT6739W (28 nm) Exynos 1480 (4 nm)
CPU Quad-core 1.5 GHz Cortex-A53 Octa-core (4x2.75 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU PowerVR GE8100 Xclipse 530

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 11 18

Comparison Summary

Smartphone Comparison: Samsung Galaxy A02 vs. Samsung Galaxy A55

1. Specifications Comparison

Here's a detailed comparison of the specifications, focusing on practical implications for users:

Design

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Dimensions164 × 75.9 × 9.1 mm161.1 × 77.4 × 8.2 mmThe A02 is taller and thicker, potentially less comfortable in hand and pocket. A55 is wider and thinner, potentially more comfortable for some and easier to grip
Weight206g213gThe A02 is slightly lighter, which might make it negligibly more comfortable for extended periods. The difference is minor
BuildUnknownCorning Gorilla Glass VictusThe A55 has superior screen protection, less prone to scratches and cracks

Display

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Size6.5"6.6"Negligible difference, both are large displays
Resolution720x16001080x2340A55's higher resolution provides much sharper text, images, and videos, a noticeable difference in clarity.
Pixel Density (PPI)270390A55's higher pixel density means crisper images and more detail. Text and graphics will appear less pixelated.
TechnologyPLS LCDAMOLEDA55's AMOLED offers superior contrast, deeper blacks, and more vibrant colors. Better viewing experience for media and gaming. It also offers better power efficiency when displaying dark images or using a dark theme
Refresh Rate60Hz120HzA55's 120Hz refresh rate results in smoother scrolling, animations, and gaming. A much more fluid and responsive feel.
Brightness0 nits0 nitsBoth have same peak brightness, information is missing and can't be evaluated

Performance

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
ChipsetMediatek MT6739W (28 nm)Exynos 1480 (4 nm)A55's chipset is significantly more powerful and efficient. Offers much faster app loading, smoother multitasking, and better gaming performance. The A02 will feel sluggish compared to A55.
AnTuTu Score50,774713,393A55's vastly superior score indicates substantially faster overall performance, with real world impact in running apps and playing games smoothly
GPUPowerVR GE8100Xclipse 530A55's GPU is much more powerful, enabling superior graphics performance in games and other applications.

Camera

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Main Camera Resolution13MP50MPA55 captures much more detailed photos. Better for cropping and larger prints.
Main Camera Aperturef/1.9f/1.8A55 has slightly wider aperture, allowing slightly better low-light performance and a shallower depth of field (subject separation).
Main Camera Sensor SizeUnknown1/1.56"A55's larger sensor captures more light, leading to better low-light shots and dynamic range.
Selfie Camera Resolution5MP32MPA55 produces much sharper selfies with greater detail.
Selfie Camera Aperturef/2.0f/2.2A02 has slightly wider aperture, though resolution difference is more impactful.
Wide Angle LensNone13MP, f/2.2A55 offers the ability to capture wider scenes and perspectives, a significant advantage for travel and landscape shots.
Macro Lens2MP, f/2.45MP, f/2.4A55 captures macro shots with higher details.
Video Recording1080p@30fps4K@30fps, 1080p@60fpsA55 records much higher quality videos, more details and smoother playback with 60FPS option.
Video StabilizationNoEIS + OISA55 provides much smoother video recording, reducing shake and blur, both electronic and optical image stabilization
Slow MotionNo240 fpsA55 has a much better slow-motion capability
Camera FeaturesBasic FeaturesAdvanced FeaturesThe A55 offers many features such as Pro Video Mode, OIS, and NPU AI engine, resulting in superior camera capabilities
DxOMarkNot TestedMobile:108, Photo:110, Video: 117A55 camera rated as pretty good, much better than not tested A02

Battery

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Capacity5000mAh5000mAhBoth should offer similar battery life, depending on usage patterns.
Charging7.5W Fast Charging25W Fast ChargingA55 charges significantly faster, reducing waiting time.
Battery TypeLi-IonLi-IonBoth have standard rechargeable Lithium-Ion batteries
Removable BatteryNon-removableNon-removableBoth phones have non-removable batteries

Software

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
OSAndroid 10, upgrade to 11Android 14, upgrade to 18A55 offers latest Android software and many years of support compared to A02 which has an outdated version of Android

Connectivity

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Wi-Fi802.11 b/g/n802.11 a/b/g/n/ac/axA55 supports faster and more stable Wi-Fi, especially with WiFi 6.
Bluetooth4.2 LE5.3A55 has a newer Bluetooth standard, offering better connection stability and more features
GPSGPS, A-GPS, GLONASSGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoA55 uses a wider array of satellite systems, offering more accurate GPS location.
SIMDual SIM (Nano)Dual SIM (Nano/eSIM)A55 supports eSIM, for more flexibility in choosing cellular carriers.

Storage

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Internal Storage32GB/64GB128GB/256GBA55 has much more storage, suitable for storing more photos, videos and apps.
RAM2GB/3GB/4GB8GB/12GBA55 offers significantly more RAM, which translates to better multitasking and performance.
Expandable StorageNoNoBoth phones do not offer expandable storage

Audio

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Audio QualityDolby AtmosDolby Atmos, Hi-Res Audio, Stereo SpeakersA55 has better audio quality, especially with stereo speakers for better sound separation, higher quality audio playback, and more immersive experience.

Security

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
Security FeaturesBasic security featuresFingerprint SensorA55 has biometric security for faster and more secure unlocking.

Sensors

FeatureSamsung Galaxy A02Samsung Galaxy A55Practical Impact
SensorsProximity, AccelerometerFingerprint, Accelerometer, Compass, Gyroscope, Barometer, Ultrasonic ProximityA55 provides a much comprehensive set of sensors, allowing more advanced functions such as gyroscope for gaming, compass for direction, and barometer for altitude readings

2. Key Differences Analysis

Samsung Galaxy A02 Advantages:

  • Potentially Lower Price: Being an older, budget-focused device, the A02 is likely to be significantly cheaper.
  • Slightly Lighter: A marginally lighter weight might appeal to some users.

Samsung Galaxy A55 Advantages:

  • Significantly Superior Display: High-resolution AMOLED screen with 120Hz refresh rate provides a much better viewing experience.
  • Massively Better Performance: Newer, more powerful chipset and more RAM result in significantly faster and smoother overall performance.
  • Much Higher Quality Camera System: Superior image quality, better low-light performance, 4K video recording, optical image stabilization, wide angle and macro lens.
  • Faster Charging: 25W fast charging reduces waiting time.
  • Newer Software: Comes with the latest android version and will receive updates.
  • Enhanced Connectivity: Faster Wi-Fi and newer Bluetooth version offer better connections.
  • Stereo Speakers and Hi-Res Audio: Better audio for media consumption.
  • Fingerprint Sensor: Provides improved security.
  • More Comprehensive Sensors Supports many advanced applications.

Trade-offs:

  • A02: The trade-off is that it offers significantly lower performance and features for a lower price.
  • A55: The trade-off is the higher price.

3. User Profiles & Recommendations

Samsung Galaxy A02:

  • Ideal Users: Budget-conscious users with very basic needs (calling, messaging, very light social media use).
  • Use Cases:
    • A backup phone or basic phone for senior citizens.
    • A secondary device for basic tasks.
    • Users who prioritize cost over performance and features.
  • Price-to-Value Ratio: Low price, but very limited functionality and outdated hardware.

Samsung Galaxy A55:

  • Ideal Users: Users seeking good overall performance, excellent display quality, and a versatile camera.
  • Use Cases:
    • Everyday use, including social media, browsing, and media consumption.
    • Mobile gaming and multitasking.
    • Photography and videography, particularly in low-light conditions.
    • Users who want a modern smartphone experience.
  • Price-to-Value Ratio: Higher price, but justified by a significant jump in performance and features.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? If you're extremely budget-constrained, the A02 might be your only option.
  2. How important is performance and responsiveness? If you need smooth multitasking and gaming capabilities, the A55 is essential.
  3. How much do you value display and camera quality? If you watch videos, play games, or take photos frequently, the A55 is significantly better.

Scenario-Based Recommendations:

  • Scenario 1: Extremely limited budget: If you're on a very tight budget and only need a basic phone for calls and messages, the A02 will work.
  • Scenario 2: Basic Smartphone User: If you want a good value and don't need high performance or features, the A02 is good option.
  • Scenario 3: Mid-Range Performance Seeker: If you desire a good all-round experience for gaming, browsing, media, and photography, the A55 is the obvious choice.

My Choice

I would choose the Samsung Galaxy A55.

Here's why:

The Samsung Galaxy A55 offers a far superior experience in almost every aspect that matters to me in a modern smartphone. The drastically better performance, the beautiful AMOLED display with a 120Hz refresh rate, the vastly improved camera system with 4K video and OIS, the faster charging, newer software, and better connectivity options make it a device that I would actually enjoy using every day.

While the A02 might be tempting due to its potential lower price, the compromises in performance, camera quality, and overall user experience are just too significant. For someone who uses their smartphone daily for a variety of tasks, the A55 is the better investment and provides far greater value for money in the long run. The improved performance alone is worth the difference.

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
  • Digital media communication
  • Technical storytelling
  • User-centric technology insights

Bridging technical complexity with engaging, accessible narratives.