Samsung Galaxy A42 5G vs Asus ROG Phone 8 Pro - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date November 11, 2020 January 18, 2024
Release Year 2020 2024

Physical

Volume 107.31 cm³ 111.96 cm³
Screen Size to Weight Ratio 3.42 "/g 3.01 "/g
Weight 193 g 225 g
Height 164.4 mm 163.8 mm
Width 75.9 mm 76.8 mm
Thickness 8.6 mm 8.9 mm
Foldable Design No No
Available Colors
  • Prism Dot Black
  • Prism Dot White
  • Prism Dot Gray
  • Phantom Black

Display

Screen Size 6.6 " 6.78 "
Resolution 720 x 1600 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.3 % 88.2 %
Pixel Density 266 PPI 388 PPI
Refresh Rate N/A 165 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 1600 nits
Peak Brightness N/A 2500 nits

Hardware

Battery Capacity per Screen Area 114.78 mAh/in² 119.65 mAh/in²
Battery Density 46.59 mAh/cm³ 49.12 mAh/cm³
Battery Capacity 5000 mAh 5500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM7225 Snapdragon 750 5G (8 nm) Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)
CPU Octa-core (2x2.2 GHz Kryo 570 & 6x1.8 GHz Kryo 570) Octa-core (1x3.3 GHz Cortex-X4 & 3x3.2 GHz Cortex-A720 & 2x3.0 GHz Cortex-A720 & 2x2.3 GHz Cortex-A520)
GPU Adreno 619 Adreno 750

Connectivity

USB Version 2.0 N/A
OTG Support 1
DisplayPort 1
DisplayPort Version N/A 1.4
USB Features USB Type-C 2.0 USB Type-C, OTG, DisplayPort 1.4, Bottom Port

Software

Operating System Android Android
Initial OS Version 10 14
Maximum OS Version 13 16

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A42 5GAsus ROG Phone 8 ProPractical Impact
Design
Launch Date2020-11-112024-01-18The Asus is significantly newer, likely with better software support and newer technologies.
Dimensions164.4 × 75.9 × 8.6 mm163.8 × 76.8 × 8.9 mmVery similar size, Asus is slightly thicker. The A42 might be more comfortable for users with smaller hands or who prefer thinner phones.
Weight193g225gThe A42 is significantly lighter making it more comfortable for extended periods of use.
Display
Size6.6"6.78"The ROG Phone has a slightly larger display for more immersive viewing.
Resolution720x16001080x2400The ROG Phone has a much sharper display, leading to clearer images and text.
PPI266388The ROG Phone has a significantly higher pixel density, resulting in much sharper images and text.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks typical of AMOLED screens.
Refresh Rate60Hz165HzThe ROG Phone has a dramatically smoother display, especially noticeable in games and scrolling.
Brightness0 nits2500 nitsThe ROG Phone offers dramatically better visibility in bright sunlight, making it a superior option for outdoor use.
Performance
ChipsetQualcomm SM7225 Snapdragon 750 5G (8 nm)Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm)The ROG Phone has a much more powerful and modern chip, providing drastically better performance for all tasks, especially gaming.
AnTuTu Score392,4002,020,000The ROG Phone demonstrates massively superior overall performance, leading to quicker app loading, better multitasking, and smoother gaming experiences.
GPUAdreno 619Adreno 750The ROG Phone has a vastly superior GPU, leading to much better graphics performance in games and other demanding applications.
Battery
Capacity5000mAh5500mAhThe ROG Phone has a larger battery which should offer slightly longer battery life.
Charging15W fast charging65W fast chargingThe ROG Phone charges much faster, reducing downtime.
Camera
Standard48MP, f/1.8, 1/2" sensor, 0.80µm pixels50MP, f/1.9, 1/1.56" sensor, 1.00µm pixelsThe ROG Phone's main sensor is slightly larger and has bigger pixels, potentially resulting in better low light performance.
Selfie20MP, f/2.2, 1.00µm pixels32MP, 1/3.2" sensor, 0.70µm pixelsThe ROG Phone has a higher resolution selfie camera.
TelephotoNone32MP, f/2.4, 1/3.2" sensor, 0.70µm pixelsThe ROG Phone has a dedicated telephoto lens for optical zoom which is missing on the A42.
Wide Angle5MP, f/2.2, 1.12µm pixelsNoneThe A42 has a dedicated wide-angle lens.
Portrait (Depth)5MP, f/2.4, 1/5", 1.12µm pixelsNoneThe A42 has a dedicated depth sensor for portrait photography.
Macro5MP, f/2.4, 1/5", 1.12µm pixelsNoneThe A42 has a dedicated macro lens.
Wide Angle + MacroNone13MP, f/2.2, 1/3", 1.12µm pixelsThe ROG Phone combines wide-angle and macro in a single lens.
Video4K@30fps, 1080p@30fps, 720p@480fps; No; Slow-motion: Yes, 480 fps8K@24fps, 4K@60fps, 1080p@240fps; EIS, HDR; Slow-motion: Yes, 480 fpsThe ROG Phone offers significantly higher quality video recording with higher resolution and frame rates, better stabilization, and HDR.
Camera FeaturesQuadruple camera, PDAFTriple camera, OIS, Gimbal, Laser AFThe ROG Phone has superior camera tech including Optical Image Stabilization and laser autofocus.
Software
OSAndroid 10 (upgradable to 13)Android 14 (upgradable to 16)The ROG Phone offers a much newer version of Android out of the box and a longer software update lifespan.
Connectivity
WiFi802.11ac802.11be (Wi-Fi 7)The ROG Phone has newer Wi-Fi standards, offering faster speeds and more stability.
Bluetooth5.05.3 LEThe ROG Phone has newer Bluetooth, offering better performance and efficiency.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoA-GPS, GLONASS, Beidou, QZSS, GPS (L1+L5), GLONASS (L1), BeiDou (B1), Galileo (E1+E5a), BeiDou (B2), NavIC System, QZSS (L1 + L5)The ROG Phone has more precise positioning with more satellite systems.
SIMDual SIM Dual StandbyDual SIM Dual StandbyBoth phones offer dual SIM capabilities.
Storage
Internal128 GB512 GB or 1024 GBThe ROG Phone provides significantly more internal storage.
RAM4 GB, 6 GB, or 8 GB16 GB or 24 GBThe ROG Phone has far more RAM, enabling better multitasking performance.
Expandable StorageNoNoNeither phone allows expandable storage.
Audio
QualityBasic Audio FeaturesDTS / DTS X, Stereo Speakers, 3 microphonesThe ROG Phone has significantly better audio, including stereo speakers and better surround sound processing.
Security
FeaturesBasic Fingerprint SensorBasic Fingerprint SensorBoth phones offer standard fingerprint security.
Build Quality
ProtectionUnknownCorning Gorilla Glass Victus 2The ROG Phone has superior screen protection.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, Gyroscope, GeomagneticFingerprint, Proximity, Accelerometer, Compass, Gyroscope, GravityThe ROG Phone has a comprehensive sensor suite suitable for gaming.

2. Key Differences Analysis

Samsung Galaxy A42 5G Advantages:

  • Lighter Weight: At 193g, it is more comfortable for extended holding than the ROG Phone 8 Pro (225g).
  • Lower Cost: Being an older, mid-range phone, it will likely be significantly cheaper than the ROG Phone 8 Pro.
  • Dedicated Lenses: It offers a dedicated wide-angle, macro, and depth sensor, which provide some versatility in photography.

Asus ROG Phone 8 Pro Advantages:

  • Superior Performance: The Snapdragon 8 Gen 3 chipset and up to 24GB of RAM provide a dramatically faster and smoother experience.
  • Superior Display: Much higher resolution, pixel density, refresh rate, and brightness provide a superior visual experience.
  • Advanced Camera System: Higher resolution sensors, telephoto lens, OIS, and laser autofocus provide much better overall image and video quality.
  • Massive Internal Storage: Offers significantly more internal storage with 512 GB and 1024 GB variants.
  • Faster Charging: 65W fast charging is significantly faster than 15W.
  • Enhanced Audio: Stereo speakers, DTS:X audio, and better microphones improve overall audio experience.
  • Newer Software & Support: It comes with a newer version of Android and should receive updates for longer.
  • Advanced Connectivity: Includes Wi-Fi 7, Bluetooth 5.3, and more accurate GPS, providing superior wireless capabilities.
  • Better Screen Protection: The Corning Gorilla Glass Victus 2 offers superior screen protection compared to the unknown screen protection of the A42.

Trade-offs:

  • Size and Weight: The ROG Phone 8 Pro is heavier and slightly thicker than the Galaxy A42 5G, which can make it less comfortable for some users.
  • Camera Versatility: While the ROG Phone has a superior main and telephoto camera, it lacks dedicated wide-angle, macro, and depth lenses, which the A42 has.
  • Price: The ROG Phone 8 Pro will be significantly more expensive than the Galaxy A42 5G.

3. User Profiles & Recommendations

Samsung Galaxy A42 5G Ideal User:

  • Budget-conscious users: Those looking for a cost-effective 5G phone for basic daily tasks.
  • Users who prioritize comfort: Those preferring a lighter, more comfortable device for daily use.
  • Casual photographers: Those who value the inclusion of dedicated macro and ultrawide lenses for added creative options.

  • Specific Use Cases:

    • Basic social media browsing and communication.
    • Watching videos and listening to music.
    • Casual photography with dedicated macro and ultrawide lenses
    • Day-to-day tasks and basic app usage

Asus ROG Phone 8 Pro Ideal User:

  • Mobile Gamers: Those who need the highest performance and the best gaming experience possible.
  • Power Users: Those who want the best in terms of performance, display quality, and advanced features.
  • Photography and Videography Enthusiasts: Those who want high-quality photo and video capabilities.

  • Specific Use Cases:

    • Playing graphically demanding mobile games at high settings.
    • Multitasking with several apps and heavy workloads.
    • Shooting high-resolution photos and videos
    • Using the phone in bright outdoor conditions.
    • Media consumption with enhanced audio quality.

4. Decision Framework

Key Questions for Buyers:

  1. What is my budget? The Galaxy A42 5G will be significantly more affordable than the ROG Phone 8 Pro.
  2. How important is mobile gaming and overall performance? If gaming or heavy app usage is a priority, the ROG Phone 8 Pro is a must.
  3. Do I prioritize camera versatility or quality? The A42 has more lenses but the ROG Phone 8 Pro has better quality main and telephoto cameras.

Scenario-Based Recommendations:

  • Scenario 1: Casual user with budget constraints: The Samsung Galaxy A42 5G is the better option, as it will handle basic tasks and provides reasonable value.
  • Scenario 2: Mobile gamer and power user: The Asus ROG Phone 8 Pro is the clear winner due to its superior performance, display, and audio.
  • Scenario 3: Photography enthusiasts: The Asus ROG Phone 8 Pro is the better option, the improved main camera and telephoto lens with OIS and laser AF are hard to beat.

My Choice

I would choose the Asus ROG Phone 8 Pro. Here's why:

While the Samsung Galaxy A42 5G is a respectable budget option, the sheer power and features of the ROG Phone 8 Pro are simply irresistible for my use cases. I regularly engage in mobile gaming and content creation, and the ROG Phone 8 Pro's superior processing power, advanced camera system, and outstanding display make it far more suitable. The improved battery charging speed would also be a major convenience factor. Even though it is heavier and more expensive, the advantages are substantial enough to justify the trade-offs. The difference in performance and display quality is so vast that it would dramatically impact daily use experience. The software support is also a consideration, as the ROG Phone will have a longer software lifespan. Finally, I value video and photo quality, and the ROG Phone's telephoto and improved primary lens would be more useful for me than the A42's extra lenses.

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.