Samsung Galaxy A02s vs Realme C31 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C31
Realme C31
Realme

General

Launch Date January 4, 2021 March 31, 2022
Release Year 2021 2022

Physical

Volume 113.41 cm³ 105.28 cm³
Screen Size to Weight Ratio 3.32 "/g 3.3 "/g
Weight 196 g 197 g
Height 164.2 mm 164.7 mm
Width 75.9 mm 76.1 mm
Thickness 9.1 mm 8.4 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Light Silver
  • Dark Green

Display

Screen Size 6.5 " 6.5 "
Resolution 720 x 1600 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.8 % 81.4 %
Pixel Density 270 PPI 270 PPI
Refresh Rate N/A N/A
Typical Brightness N/A 400 nits
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 118.34 mAh/in²
Battery Density 44.09 mAh/cm³ 47.49 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No No
Chipset Qualcomm SDM450 Snapdragon 450 (14 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core 1.8 GHz Cortex-A53 Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 506 Mali-G57

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 11
Maximum OS Version 12

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A02sRealme C31Practical Impact
Design
Dimensions164.2 × 75.9 × 9.1 mm164.7 × 76.1 × 8.4 mmSimilar sizes, but the Realme C31 is slightly thinner and thus potentially feels better in hand. Samsung is a bit thicker.
Weight196g197gBoth are virtually identical in weight, will feel almost the same in pocket and hand.
Display
Size6.5"6.5"Both have the same screen size, so both will provide the same real-estate for content consumption and use.
Resolution720x1600720x1600Same sharpness, good for basic tasks, but can look slightly less detailed than FHD displays.
PPI270270Identical pixel density means the same visual clarity.
TechnologyPLS LCDIPS LCDIPS LCD generally offers slightly better viewing angles and color accuracy compared to PLS LCD.
Refresh Rate60Hz60HzStandard refresh rate, fine for general use, but will not feel as smooth as higher refresh rate displays for scrolling and gaming.
Performance
ChipsetSnapdragon 450 (14 nm)Unisoc Tiger T612 (12 nm)The Unisoc chipset in the Realme C31 offers significantly better performance for everyday use, multitasking and even some light gaming.
AnTuTu Score74,800224,223The Realme C31 scores much higher, indicating faster app loading, better multitasking and a much smoother user experience.
GPUAdreno 506Mali-G57 MP1The Mali-G57 in the Realme C31 is a more capable GPU, leading to better graphics performance in games.
Battery
Capacity5000mAh5000mAhSimilar battery capacity offers comparable battery life, usually good for a full day of use.
Charging15W Fast Charging10W Fast ChargingThe Samsung A02s charges faster, reducing the time spent waiting for the phone to be fully charged.
Camera
Main Camera13MP f/1.813MP f/2.2The Samsung A02s with a wider aperture (f/1.8) should perform slightly better in low light compared to the Realme C31 (f/2.2).
Selfie Camera5MP f/2.25MP f/2.2Both have the same selfie camera setup, offering comparable quality for selfies.
Depth Camera2MP f/2.4N/ASamsung A02s has a dedicated depth sensor that can help achieve better portrait mode effect, while the C31 does not have it.
Macro Camera2MP f/2.42MP f/2.4Both offer the same macro camera, same functionality.
B&W CameraN/A2MP f/2.8Realme C31 has a dedicated black & white camera while Samsung A02s doesn't.
Video1080p@30fps1080p@30fpsBoth record video at same settings with identical capabilites, fine for standard social media sharing.
FeaturesPDAF, etc.PDAF, CDAF, DIS etc.Realme C31 offers more camera features like digital image stabilization, and contrast detection autofocus, which may give an advantage to some users.
Software
OSAndroid 10 (Upgradable to 12)Android 11The Realme C31 has a slightly more recent Android OS out of the box.
Connectivity
WiFi802.11 b/g/n, Direct, Display802.11 b/g/n, HotspotSamsung A02s has additional Wi-Fi Direct and Display capabilities in comparison to the Realme C31.
Bluetooth4.2 LE5.0 LE, EDRRealme C31 offers a newer version with faster and more efficient connection with EDR for enhanced data rate.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, Beidou, GalileoBoth offer the same GPS capabilities.
SIMDual Nano SIMDual Nano SIMBoth have Dual SIM dual standby capability.
Storage
Internal32/64 GB32/64 GBSame storage options.
RAM3/4 GB3/4 GBSame RAM options, sufficient for basic multitasking.
ExpandableNoNoNeither phone supports expandable storage.
Security
SecurityBasicSide-mounted fingerprint sensorOnly Realme C31 has a side-mounted fingerprint sensor
Sensors
SensorsProximity, AccelerometerProximity, Accelerometer, Compass, GyroscopeThe Realme C31 has better sensor capabilities thanks to the compass and gyroscope.

2. Key Differences Analysis

Samsung Galaxy A02s Advantages:

  • Wider Aperture Main Camera: The f/1.8 aperture on its main camera allows more light, potentially leading to better low-light photos.
  • Faster Charging: The 15W fast charging will reduce charging times compared to the 10W charging of the Realme C31.
  • Dedicated Depth Sensor: Enables potentially better portrait mode photos.
  • Wi-Fi Direct and Display: Offers additional connectivity options

Realme C31 Advantages:

  • Significantly Better Performance: The Unisoc T612 chipset provides much better performance compared to the Snapdragon 450, resulting in a smoother user experience.
  • Newer Bluetooth Version: Bluetooth 5.0 offers a more stable and faster connection.
  • Digital Image Stabilization & Additional Camera Features: DIS can improve video quality and reduce shakiness, while CDAF and other software features may lead to enhanced photographic results.
  • Side Mounted Fingerprint Sensor: Offers additional security and convenience.
  • Gyroscope & Compass: Provides additional sensor capabilities and can lead to better performance in navigation and mobile gaming apps.
  • Newer Operating System: Ships with Android 11, giving you a newer experience out of the box.

Trade-offs:

  • Samsung A02s has faster charging and wider aperture for the main camera, but the overall performance lags considerably behind the Realme C31.
  • Realme C31 excels in performance and features, but lacks the depth sensor and the additional WiFi functionalities found on the Samsung.

3. User Profiles & Recommendations

Samsung Galaxy A02s Ideal User:

  • Basic User: Someone who primarily uses a phone for calls, texts, and light social media browsing.
  • Budget-Conscious: Those seeking a very affordable smartphone.
  • Camera Priority (Low Light): Users who might prioritize low-light camera performance (although the camera is basic).
  • Existing Samsung Ecosystem: Users who might prefer to stay within the Samsung ecosystem for familiarity.

Use Cases:

  • Basic daily communication
  • Light web browsing
  • Occasional social media use
  • Low light photography with basic requirements

Realme C31 Ideal User:

  • Performance-Oriented Budget User: Users looking for the best performance possible in a budget smartphone.
  • Light Mobile Gamer: Those who want to play basic games without lag.
  • Feature-Conscious: Users who want a good selection of features at a budget price, including DIS and a fingerprint scanner.
  • Users that benefit from newer features: The gyroscope, digital image stabilization or black and white camera capabilities

Use Cases:

  • Smoother multitasking and app switching
  • Light gaming
  • More advanced photography with software features
  • Mobile navigation
  • More secure phone with fingerprint scanner

Price-to-Value:

The Realme C31 generally provides better value for most users due to its superior performance, newer software, security features, and additional sensors.

4. Decision Framework

Key Questions for Buyers:

  1. How important is performance to you? (The Realme C31 will have a significantly better everyday user experience)
  2. Are you more concerned with slightly better low light photography or better performance, and newer features? (Samsung A02s has a slightly better camera for low light, but Realme C31 excels in all other camera aspects.)
  3. Is fingerprint security important? (Only the Realme C31 has a side mounted fingerprint sensor.)

Scenario-Based Recommendations:

  • If you need a basic phone for simple tasks and want to save every penny: The Samsung Galaxy A02s might suffice, especially if you have very specific needs like low light photography.
  • If you want smoother, more responsive performance and better features for similar price: The Realme C31 is the clear choice.

My Choice

I would choose the Realme C31. The performance difference is the key deciding factor. The Snapdragon 450 in the Samsung A02s is quite weak, resulting in a slow and often frustrating user experience. The Realme C31's Unisoc chipset offers a significantly smoother and more responsive feel, which is crucial for everyday usability, including opening apps quickly, and smoothly scrolling through menus. Also, the addition of a fingerprint scanner, a more modern Bluetooth, the gyroscope, and extra camera features makes the Realme C31 the better choice in every way for a modern smartphone. While the faster charging and wider aperture camera on the Samsung are nice, they do not outweigh the performance and modern features advantages provided by the Realme C31, making it a better overall value for most users.

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.