Samsung Galaxy A42 5G vs Samsung Galaxy A02 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date November 11, 2020 January 27, 2021
Release Year 2020 2021

Physical

Volume 107.31 cm³ 113.27 cm³
Screen Size to Weight Ratio 3.42 "/g 3.16 "/g
Weight 193 g 206 g
Height 164.4 mm 164 mm
Width 75.9 mm 75.9 mm
Thickness 8.6 mm 9.1 mm
Foldable Design No No
Available Colors
  • Prism Dot Black
  • Prism Dot White
  • Prism Dot Gray
  • Black
  • Blue

Display

Screen Size 6.6 " 6.5 "
Resolution 720 x 1600 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.3 % 81.9 %
Pixel Density 266 PPI 270 PPI
Refresh Rate N/A N/A
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 114.78 mAh/in² 118.34 mAh/in²
Battery Density 46.59 mAh/cm³ 44.14 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM7225 Snapdragon 750 5G (8 nm) Mediatek MT6739W (28 nm)
CPU Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570) Quad-core 1.5 GHz Cortex-A53
GPU Adreno 619 PowerVR GE8100

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 10
Maximum OS Version 13 11

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A42 5GSamsung Galaxy A02Practical Impact
Design
Dimensions164.4 × 75.9 × 8.6 mm164 × 75.9 × 9.1 mmA42 is slightly thinner, A02 is slightly bulkier.
Weight193g206gA42 is lighter, making it slightly more comfortable for extended use
Display
Size6.6"6.5"Negligible difference in screen size.
Resolution720x1600720x1600Identical sharpness; both are HD+ displays.
Pixel Density266 PPI270 PPIVery similar, negligible difference in sharpness.
TechnologyAMOLEDPLS LCDA42 has a better screen with deeper blacks, more vibrant colors, and better power efficiency with dark themes.
Refresh Rate60Hz60HzStandard smoothness for both.
Brightness0 nits0 nitsBrightness is not available for either phone.
Performance
ChipsetQualcomm Snapdragon 750 5G (8 nm)Mediatek MT6739W (28 nm)A42 has a much faster and more efficient processor, making it much smoother for daily tasks and gaming.
AnTuTu Score392,40050,774A42 offers significantly better performance in all areas, from app loading to gaming.
GPUAdreno 619PowerVR GE8100A42 has a much more powerful GPU for better graphics and gaming performance.
Battery
Capacity5000mAh5000mAhSimilar battery life should be expected
Charging15W Fast Charging7.5W Fast ChargingA42 charges significantly faster
Battery TypeLi-PolymerLi-IonLi-Polymer is generally more durable with a better lifespan.
Camera
Main Camera Resolution48MP f/1.813MP f/1.9A42 has a much higher resolution camera, capturing more detail. A42 also has slightly wider aperture.
Selfie Camera Resolution20MP f/2.25MP f/2.0A42 takes much more detailed selfies and has a slightly wider aperture for better low-light performance.
Wide Angle Lens5MP f/2.2NoneA42 has a dedicated wide-angle lens for capturing more in the frame.
Portrait Mode Lens5MP f/2.4NoneA42 has a dedicated depth sensor for better portrait photos.
Macro Lens5MP f/2.42MP f/2.4A42 has a higher resolution macro lens for better close-up shots.
Video RecordingUp to 4K@30fpsUp to 1080p@30fpsA42 can record at much higher resolutions
Slow MotionYes, 480 fpsNo, 30 fpsA42 supports slow motion capture.
Camera Features4K Video, Quad Camera, PDAFDual CameraA42 has more advanced camera capabilities.
Software
OSAndroid 10, upgradable to 13Android 10, upgradable to 11A42 has longer software support with newer features and security updates.
Connectivity
Wi-Fi802.11ac, Dual-Band802.11nA42 supports faster and more stable WiFi
Bluetooth5.04.2 LEA42 has a newer bluetooth version with more features and better power efficiency.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASSA42 has more accurate positioning with more satellite systems.
SIMDual SIM Dual StandbyDual SIM Dual StandbyBoth support dual SIM functionality.
Storage
Internal Storage128 GB32 GB or 64 GBA42 has much larger storage for apps, photos, and videos.
RAM4GB/6GB/8GB2GB/3GB/4GBA42 has more RAM for smoother multi-tasking.
Expandable StorageNoNoNeither phone offers expandable storage.
Audio
Audio QualityBasic audio featuresDolby AtmosA02 provides better spatial audio immersion.
Security
SecurityFingerprint SensorBasic Security FeaturesA42 provides biometric security via fingerprint.
Sensors
SensorsFingerprint, Accelerometer, Gyroscope, Compass, ProximityAccelerometer, ProximityA42 has a more comprehensive sensor suite for advanced features and gaming.

2. Key Differences Analysis

Samsung Galaxy A42 5G Advantages:

  • Superior Performance: The Snapdragon 750 5G chipset provides significantly faster processing, smoother multitasking, and better gaming performance compared to the Mediatek MT6739W in the A02.
  • Better Display: The AMOLED display offers superior color vibrancy, deeper blacks, and better power efficiency than the A02's PLS LCD.
  • Enhanced Camera System: The A42 has higher resolution main, ultrawide, macro, and selfie cameras, along with 4K video recording, leading to significantly better image and video quality. It also has a dedicated depth sensor for better portrait mode.
  • Faster Charging: The 15W fast charging support charges the phone much more quickly.
  • More RAM and Storage: A42 provides more RAM for smoother multi-tasking and larger storage for apps, photos and videos.
  • Better Software Support: The A42 will receive more Android OS updates and security patches.
  • Improved Connectivity: A42 has newer WiFi and Bluetooth versions for faster and more stable connections, and additional GPS satellites for more accurate positioning.
  • Biometric Security: Fingerprint sensor for enhanced device security.

Samsung Galaxy A02 Advantages:

  • Dolby Atmos Audio: A02 offers Dolby Atmos for better spatial audio.
  • Lower price: A02 has a considerably lower price point.
  • Slightly higher pixel density: A02 has a slightly higher pixel density.

Trade-offs:

  • The Galaxy A42 5G offers substantially better performance and features but at a higher price point.
  • The Galaxy A02 has Dolby Atmos but lags significantly in almost all other aspects including performance and display.

3. User Profiles & Recommendations

Samsung Galaxy A42 5G:

  • Ideal User: Users who want a smooth and responsive phone for daily tasks, social media, gaming, and media consumption. Users who want a good quality camera for photos and videos.
  • Use Cases:
    • Mobile gaming with smoother graphics
    • High-quality video recording and viewing
    • Multitasking between several apps
    • Long-term use requiring software updates and security patches
    • Photography and videography enthusiasts

Samsung Galaxy A02:

  • Ideal User: Budget-conscious users who prioritize basic smartphone functionality and don't require high performance or advanced features. Users who value Dolby Atmos audio.
  • Use Cases:
    • Basic communication (calls, texts, emails)
    • Casual web browsing
    • Listening to music and podcasts
    • Light social media usage
    • Users who value Dolby Atmos audio.

4. Decision Framework

Key Questions:

  1. Budget: How much are you willing to spend on a new phone?
  2. Performance: How important is smooth performance, fast app loading, and gaming capability?
  3. Camera Quality: How often will you use the camera and how important is image/video quality?

Scenario-Based Recommendations:

  • Scenario 1: Tight Budget, Basic Needs: If your budget is very limited and you only need a phone for basic tasks, the Samsung Galaxy A02 is suitable with the trade-off in performance.
  • Scenario 2: Performance Matters: If you value smooth performance, fast app loading and decent gaming, the Galaxy A42 5G is the better choice because it has a powerful processor.
  • Scenario 3: Camera is Essential: If camera quality and video recording are important to you, the Galaxy A42 5G offers much better options including 4K recording, higher resolution cameras, and more features.
  • Scenario 4: Better Audio Matters: If you prioritize better spatial audio immersion through headphones or built in speakers, the A02 offers Dolby Atmos.

What I would choose and why!

I would choose the Samsung Galaxy A42 5G. While the A02 has a lower price point and Dolby Atmos, the A42 5G offers a significantly better user experience in almost every other aspect. The substantial difference in performance, display quality, camera capabilities, faster charging, and improved software support make the A42 5G a more future-proof and satisfying choice for daily use. I prioritize a responsive device that can handle my typical workload of multitasking, social media, photography, and casual gaming, making the A42 5G the more suitable device for my needs. The AMOLED display and better camera alone make the A42 a more versatile choice. Though the A02's Dolby Atmos is nice, it does not outweigh the vastly improved overall experience of the A42.

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.

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Bridging technical complexity with engaging, accessible narratives.