Samsung Galaxy A02s vs OnePlus 9 Pro - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9 Pro
OnePlus 9 Pro
Oneplus

General

Launch Date January 4, 2021 March 30, 2021
Release Year 2021 2021

Physical

Volume 113.41 cm³ 104.5 cm³
Screen Size to Weight Ratio 3.32 "/g 3.4 "/g
Weight 196 g 197 g
Height 164.2 mm 163.2 mm
Width 75.9 mm 73.6 mm
Thickness 9.1 mm 8.7 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Forest Green
  • Morning Mist
  • Stellar Black

Display

Screen Size 6.5 " 6.7 "
Resolution 720 x 1600 1440 x 3216
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.8 % 89.9 %
Pixel Density 270 PPI 525 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 1300 nits

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 100.25 mAh/in²
Battery Density 44.09 mAh/cm³ 43.06 mAh/cm³
Battery Capacity 5000 mAh 4500 mAh
NFC Support No Yes
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55
GPU Adreno 506 Adreno 660

Connectivity

USB Version 2.0 3.1
OTG Support 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0 USB Type-C 3.1, OTG

Software

Operating System Android Android
Initial OS Version 10 11
Maximum OS Version 12 14

Comparison Summary

Smartphone Comparison: Samsung Galaxy A02s vs. OnePlus 9 Pro

1. Specifications Comparison

FeatureSamsung Galaxy A02sOnePlus 9 ProPractical Impact
Design
Dimensions164.2 × 75.9 × 9.1 mm163.2 × 73.6 × 8.7 mmA02s is slightly wider and thicker, may feel less sleek in hand.
Weight196g197gVirtually identical weight, negligible difference in feel.
Display
Size6.5"6.7"OnePlus 9 Pro has a slightly larger screen for more immersive viewing.
Resolution720x16001440x3216OnePlus 9 Pro offers much sharper images and text, better for detailed content viewing.
PPI270525OnePlus 9 Pro display will look significantly clearer, less pixelation.
TechnologyPLS LCDUnknownBoth use similar display technology but OnePlus 9 Pro display quality is much better because of other display specifications.
Refresh Rate60Hz120HzOnePlus 9 Pro has smoother scrolling and animations, much better for gaming.
Brightness0 nits1300 nitsOnePlus 9 Pro screen is significantly more visible under bright sunlight.
Performance
ChipsetQualcomm SDM450 Snapdragon 450 (14 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)OnePlus 9 Pro has a much faster processor, apps open quicker, multitasking is smoother.
AnTuTu Score74,800877,600OnePlus 9 Pro is significantly faster in performance, gaming, and responsiveness.
GPUAdreno 506Adreno 660OnePlus 9 Pro has a much more powerful GPU, resulting in significantly better graphics performance for games.
Battery
Capacity5000mAh4500mAhSamsung A02s may last slightly longer on a single charge due to the larger battery.
Charging15W Fast Charging65W Fast Charging, 50W Wireless ChargingOnePlus 9 Pro charges much faster and has wireless charging capabilities.
Battery FeaturesNon-removableReverse charging, Non-removable, Wireless charging 50W, Reverse Wireless ChargingOnePlus 9 Pro offers a more convenient and versatile battery experience.
Camera
Main Camera13MP, f/1.848MP, f/1.8, 1/1.43" sensorOnePlus 9 Pro captures much more detailed photos, especially in low light
Selfie Camera5MP, f/2.216MP, f/2.4, 1/3.13" sensorOnePlus 9 Pro captures sharper and more detailed selfies.
Telephoto LensNone8MP, f/2.4OnePlus 9 Pro has optical zoom capabilities, better for distant subjects.
Wide Angle LensNone50MP, f/2.2OnePlus 9 Pro can capture much wider scenes in photos.
Depth Sensor2MP, f/2.4NoneSamsung A02s has a dedicated depth sensor for portrait mode
Macro Lens2MP, f/2.4NoneSamsung A02s has a dedicated macro lens for detailed close-up shots
Black & White LensNone2MP, f/2.4OnePlus 9 Pro can capture black and white images.
Video Recording1080p@30fps8K@30fps, 4K@30/60/120fpsOnePlus 9 Pro records much higher-quality videos with better stabilization.
DXOMark ScoreNot Tested122 (Overall), 124 (Photo), 118 (Video)OnePlus 9 Pro camera performance is significantly superior based on this metric.
Camera FeaturesDigital zoom, Triple camera, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, ISO settings, Scene mode, Self-timer4K Video, 8K Video, Digital zoom, Optical zoom, Quadruple camera, Digital image stabilization, Optical Stabilization (OIS), Ultra stable video, Autofocus, Touch focus, Continuous autofocus, Manual focus, Phase detection autofocus (PDAF), Contrast detection autofocus (CDAF), Laser autofocus (LAF), Continuous shooting, Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timer, RAW, Night Mode, RAW 12 bitsOnePlus 9 Pro offers a much wider range of shooting options and features.
Software
OSAndroid 10 (Upgradable to 12)Android 11 (Upgradable to 14)OnePlus 9 Pro has a more recent operating system and will receive updates for longer.
Connectivity
WiFi802.11b/g/n802.11a/b/g/n/ac/ax (WiFi 6)OnePlus 9 Pro supports faster WiFi speeds and better performance.
Bluetooth4.25.2OnePlus 9 Pro has a more modern version of Bluetooth with improved power efficiency and range
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, Galileo, (L1+L5)OnePlus 9 Pro offers more accurate location tracking using dual-frequency GPS
SIMDual SIM Dual Standby (Nano SIM)Dual SIM Dual Standby (Nano SIM)Both support dual sim functionality.
Storage
Internal32GB/64GB128GB/256GBOnePlus 9 Pro has more storage available out of the box for more photos, videos, and apps.
RAM3GB/4GB8GB/12GBOnePlus 9 Pro has much more RAM for smoother multitasking, better gaming, and more apps running in background.
Expandable StorageNoNoNeither phone supports external storage.
Audio
QualityBasic audio featuresDolby Atmos, Noise cancellation microphone, Stereo Speakers, 3 microphonesOnePlus 9 Pro provides superior audio with better audio quality and features.
Security
FeaturesBasic security featuresFingerprint sensorOnePlus 9 Pro has a biometric fingerprint sensor for enhanced security.
Build Quality
Screen ProtectionUnknownCorning Gorilla Glass 5OnePlus 9 Pro screen has better protection against scratches and cracks.
Sensors
SensorsProximity, AccelerometerFingerprint, Proximity, Accelerometer, Compass, GyroscopeOnePlus 9 Pro offers a richer sensor set for augmented reality, gaming, and other features.

2. Key Differences Analysis

Samsung Galaxy A02s Advantages:

  • Larger Battery: The 5000mAh battery may offer longer battery life for basic usage.
  • Dedicated Macro and Depth Lenses: Provides a simple option for macro and portrait mode photos.

    Practical Implication: Ideal for users primarily focused on basic smartphone tasks and needing long battery life and with an interest in macro photography.

OnePlus 9 Pro Advantages:

  • Superior Display: Higher resolution, refresh rate, and brightness make it ideal for content consumption and gaming.
  • Much Faster Performance: High-end processor and RAM for smooth multitasking and demanding apps.
  • Advanced Camera System: Versatile camera setup with much higher resolution sensors, telephoto, and wide angle lenses, along with excellent video capabilities.
  • Faster Charging & Wireless Charging: 65W fast charging and 50W wireless charging for added convenience and speed.
  • Modern Software & Connectivity: Newer OS, WiFi, and Bluetooth versions for enhanced features and performance.
  • Premium Audio: Dolby Atmos and stereo speakers for enhanced audio experience.
  • Better Build Quality: Corning Gorilla Glass 5 for enhanced durability.
  • Additional Sensors: Gyroscope, Compass and Fingerprint scanner for advanced functionality

    Practical Implication: Ideal for users wanting a high-performance phone with excellent display quality, camera capabilities, and fast charging.

Significant Trade-offs:

  • Samsung Galaxy A02s: Sacrifices display quality, performance, and camera features for affordability.
  • OnePlus 9 Pro: Significantly more expensive than the Galaxy A02s.

3. User Profiles & Recommendations

Samsung Galaxy A02s:

  • Ideal User: Budget-conscious users, those needing a basic phone for calls, texts, and light social media browsing, users who want a slightly larger battery, or new smartphone users
  • Use Cases: Basic web browsing, simple social media, long battery life for basic usage, and light tasks
  • Price-to-Value: Offers a very affordable option for essential smartphone tasks.

OnePlus 9 Pro:

  • Ideal User: Power users, mobile gamers, photography enthusiasts, those who consume a lot of content and value a premium experience.
  • Use Cases: High-end gaming, professional photography and video creation, seamless multitasking, and demanding apps.
  • Price-to-Value: A premium smartphone with many advanced features that come at a premium price.

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? The Samsung Galaxy A02s is significantly cheaper, while the OnePlus 9 Pro is a premium-priced device.
  2. What are your primary smartphone needs? Basic communication and light tasks vs. demanding gaming, photography, and video.
  3. How important are display quality, performance, and camera capabilities? These are areas where the OnePlus 9 Pro significantly outperforms the Galaxy A02s.

Scenario-Based Recommendations:

  • Budget-Conscious User: If the primary concern is cost and basic tasks are all you need, the Samsung Galaxy A02s is a suitable choice.
  • Performance-Focused User: If performance, display quality, and a superior camera are a priority, the OnePlus 9 Pro is the better option.
  • Content Creator: If video recording or high quality photos are a necessity, OnePlus 9 Pro is far more suitable.
  • Casual User: If you occasionally game or use social media, but want the most value out of a smartphone, the OnePlus 9 Pro is a much better choice for longevity.

My Choice

If I were choosing between these two devices, I would choose the OnePlus 9 Pro. While the Samsung Galaxy A02s has a larger battery, the OnePlus 9 Pro offers a vastly superior overall experience. The significantly better display, much faster performance, advanced camera system with superior video capabilities, and faster charging with wireless options make it a significantly more versatile and powerful device. The enhanced audio features and build quality further justify the higher price for me. The ability to play games and do more intense tasks is far more important than the basic functionality of the A02s. Ultimately, I prioritize a premium user experience and cutting-edge features over the cost, which is why the OnePlus 9 Pro is the better choice for me, and is a better device overall.

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.