Samsung Galaxy A02s vs ZTE Blade A75 4G - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date January 4, 2021 July 1, 2024
Release Year 2021 2024

Physical

Volume 113.41 cm³ 106.97 cm³
Screen Size to Weight Ratio 3.32 "/g 3.49 "/g
Weight 196 g 189 g
Height 164.2 mm 164.1 mm
Width 75.9 mm 75.8 mm
Thickness 9.1 mm 8.6 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Basalt Black
  • Aqua Green
  • Marble White

Display

Screen Size 6.5 " 6.6 "
Resolution 720 x 1600 720 x 1612
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.8 % 84.1 %
Pixel Density 270 PPI 267 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 114.78 mAh/in²
Battery Density 44.09 mAh/cm³ 46.74 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Unisoc T606 (12 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (2x1.6 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
GPU Adreno 506 Mali-G57 MP1

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 13
Maximum OS Version 12

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A02sZTE Blade A75 4GPractical Impact
Design
Dimensions164.2 × 75.9 × 9.1 mm164.1 × 75.8 × 8.6 mmZTE is slightly thinner and less bulky, potentially feeling more comfortable in hand.
Weight196g189gZTE is slightly lighter, potentially more comfortable for extended use.
Display
Size6.5"6.6"Negligible difference in screen size; barely noticeable.
Resolution720x1600720x1612Very similar visual clarity, differences are not noticeable in daily use.
PPI270267Practically identical sharpness.
TechnologyPLS LCDIPS LCDZTE screen may have better viewing angles and color accuracy; Generally IPS LCD has better viewing angles and color representation
Refresh Rate60Hz90HzZTE screen will feel smoother, especially when scrolling or gaming.
Brightness0 nits0 nitsBoth screens might struggle in direct sunlight; Brightness value is not provided; Both phones might be challenging to see in direct sunlight.
Performance
ChipsetQualcomm SDM450 Snapdragon 450 (14 nm)Unisoc T606 (12 nm)ZTE offers much faster processing for everyday tasks, gaming, and multitasking.
AnTuTu Score74,800240,000ZTE provides substantially better overall performance.
GPUAdreno 506Mali-G57 MP1ZTE likely to perform significantly better in graphics-intensive tasks and gaming.
Battery
Capacity5000mAh5000mAhBoth phones should offer similar battery life, depending on usage patterns.
Charging15W fast charging22.5W fast chargingZTE charges faster, reducing waiting time.
Battery TypeLi-IonLi-PolymerLi-Polymer is slightly safer and more durable
Camera
Rear Camera13MP (f/1.8)50MP (f/1.8)ZTE captures much more detailed images; Potentially better low light performance if not affected by sensor size difference.
Front Camera5MP (f/2.2)8MPZTE captures better quality selfies.
Portrait Camera2MP (f/2.4)Not availableSamsung allows for background blur in portrait shots.
Macro Lens2MP (f/2.4)Not availableSamsung offers dedicated macro shots.
Video Recording1080p@30fps1080p@30fpsSimilar quality for video recording.
Camera FeaturesTriple camera, PDAF, Geotagging, Panorama, HDR, Face detection, ISO settings, Scene mode, Self-timer, Digital zoom, Autofocus, Touch focusDigital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timerZTE offers digital image stabilization; Samsung provides macro and depth lens options; Both offer similar features for capturing photos
Software
OSAndroid 10 (Upgradable to 12)Android 13ZTE has a newer version of Android for a better experience.
Connectivity
Wi-Fi802.11b/g/n802.11a/b/g/n/acZTE has dual-band Wi-Fi and newer standards for faster and more stable connections.
Bluetooth4.2 LE5.0 LEZTE has a newer version for more stable and faster connectivity to accessories.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, GalileoSimilar accuracy for location tracking.
SIMDual SIM Dual StandbyDual SIM Dual StandbyBoth support two SIM cards at the same time.
Storage
Internal32GB or 64GB128GB or 256GBZTE offers substantially more space for apps, photos, and videos.
RAM3GB or 4GB4GB or 8GBZTE has more RAM for smoother multitasking and gaming;
ExpandableNot availableNot availableCannot expand storage on either phone.
Audio
Audio QualityBasic audio featuresDTS / DTS XZTE provides enhanced surround sound for a better listening experience.
Security
Security FeaturesBasic security featuresSide-mounted fingerprint sensorZTE provides a convenient way to quickly unlock the phone using biometrics.
Sensors
SensorsProximity, AccelerometerFingerprint, Proximity, Accelerometer, GyroscopeZTE includes additional sensors to provide more features. Gyroscope allows for motion tracking and enhanced gaming experiences.

2. Key Differences Analysis

Samsung Galaxy A02s Advantages:

  • Dedicated Depth & Macro Lenses: Offers a dedicated depth lens for portrait shots and a macro lens for close-up photos, which the ZTE Blade A75 4G lacks.
    • Practical Impact: Users who enjoy creative photography with blurred backgrounds or extreme close-ups will find these features useful.
  • Slightly Higher PPI: Although marginally higher, it may contribute to a slightly sharper display, though it's not that noticeable.
  • Triple Camera: The triple camera setup offers more flexibility, although that does not mean that it is better.

ZTE Blade A75 4G Advantages:

  • Significantly Faster Performance: The Unisoc T606 chipset and higher AnTuTu score offer a dramatically smoother user experience for everyday tasks and gaming.
    • Practical Impact: Apps will load faster, multitasking will be smoother, and the device will be more responsive.
  • Superior Display: IPS LCD technology offers better viewing angles and color accuracy, and a 90Hz refresh rate provides a smoother visual experience.
    • Practical Impact: Improved display quality makes viewing content more enjoyable, with smoother scrolling and animations.
  • Better Cameras: Higher resolution main and front cameras capture more detailed images.
    • Practical Impact: Users will capture better photos and selfies, especially in good lighting conditions.
  • Faster Charging: The 22.5W fast charging significantly reduces charging times.
    • Practical Impact: Less time spent waiting for the phone to charge.
  • More Internal Storage and RAM: More storage and RAM allow for more apps, photos, videos, and better multitasking.
    • Practical Impact: Users can store more files and run more apps at once without performance issues.
  • Newer Operating System: Android 13 provides access to the latest features, performance improvements, and security updates.
    • Practical Impact: Improved user interface and better security compared to Android 10 (or 12).
  • Advanced Connectivity: Newer Wi-Fi and Bluetooth standards offer faster, more reliable wireless connections.
    • Practical Impact: Quicker data transfer and better performance with wireless accessories.
  • Enhanced Audio: DTS/DTS X audio enhances the listening experience, especially for media consumption.
    • Practical Impact: Better audio quality when using the phone's speaker or headphones.
  • Side-Mounted Fingerprint Sensor: Provides a convenient and secure way to unlock the device.
    • Practical Impact: Easy to access and more secure than using passwords or patterns.

Significant Trade-offs:

  • The Samsung Galaxy A02s trades performance and a more modern user experience for a dedicated macro and depth lens.

3. User Profiles & Recommendations

Samsung Galaxy A02s:

  • Ideal User: Users with very basic smartphone needs, who primarily use the phone for calls, texts, and some light browsing. People who want a macro and depth lens.
  • Use Cases:
    • Basic social media browsing, messaging
    • Simple photography focusing on macro and portrait modes
    • Casual audio and video consumption (not demanding)
    • Users on an extremely tight budget.

ZTE Blade A75 4G:

  • Ideal User: Users who want a budget-friendly phone with good performance, a solid display, and a better camera for everyday use.
  • Use Cases:
    • Smooth multitasking and app usage.
    • Casual gaming and media consumption.
    • Taking good quality photos and selfies for social media.
    • Users who prioritize overall performance and future-proofing.
    • Those who prioritize storage capacity.

4. Decision Framework

Key Questions for Buyers:

  1. What is my budget? The ZTE Blade A75 4G is generally priced higher but provides a lot more value for the price.
  2. How important is performance for my daily use? Users who prioritize performance should consider the ZTE Blade A75 4G because of its much better CPU and GPU.
  3. How important are camera features? If having macro and depth lens is crucial, then Samsung might be slightly better for you but the ZTE has a better main sensor.

Scenario-Based Recommendations:

  • Scenario 1: Very Tight Budget, Basic Use: If the absolute lowest price is the primary concern, and all you need is basic phone functionality, the Samsung Galaxy A02s might fit. But the performance will be noticeably slower.
  • Scenario 2: Balanced Value: If you want the most performance and features for the price, the ZTE Blade A75 4G offers a significantly better all-around experience.
  • Scenario 3: Camera Focused on Depth and Macro: If you need a dedicated depth and macro lens, then the Samsung Galaxy A02s might be a better choice.
  • Scenario 4: Future-Proofing: The ZTE Blade A75 4G has a newer OS, more storage, and better performance which is a lot more future proof and would be able to run apps longer than the Samsung Galaxy A02s.

What I would choose and why:

I would choose the ZTE Blade A75 4G.

Here's why:

  • Performance is King: The massive difference in AnTuTu scores and the superior chipset of the ZTE is a game-changer. This means apps load faster, multitasking is smoother, and even casual gaming becomes enjoyable. In a modern smartphone, these are the most important points.
  • Better Overall Experience: The combination of a smoother display (90Hz refresh rate), superior IPS LCD technology, and the latest Android OS provides a significantly more enjoyable user experience compared to the older hardware and software on the Samsung device.
  • Future-Proofing: With the newer chipset, more RAM, and a more recent version of Android, the ZTE will likely remain usable and relevant for a longer period than the Samsung.
  • More Practical Features: While the Samsung does have a dedicated depth and macro lens, the substantially better main sensor, the faster charging, the fingerprint sensor, and better storage offer a more rounded and practical everyday experience.

While the macro and depth lens of the Samsung are nice, the performance gap makes the ZTE Blade A75 4G a much better choice for most users. The trade-off is a very specific feature for overall usability and performance.

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
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Bridging technical complexity with engaging, accessible narratives.