Samsung Galaxy A02s vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C51
Realme C51
Realme

General

Launch Date January 4, 2021 August 1, 2023
Release Year 2021 2023

Physical

Volume 113.41 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.32 "/g 3.62 "/g
Weight 196 g 186 g
Height 164.2 mm 167.2 mm
Width 75.9 mm 76.7 mm
Thickness 9.1 mm 8 mm
Foldable Design No No
Available Colors
  • Black
  • Red
  • Blue
  • White
  • Mint Green
  • Carbon Black

Display

Screen Size 6.5 " 6.74 "
Resolution 720 x 1600 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 81.8 % 85.5 %
Pixel Density 270 PPI 260 PPI
Refresh Rate N/A 90 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A 560 nits

Hardware

Battery Capacity per Screen Area 118.34 mAh/in² 110.07 mAh/in²
Battery Density 44.09 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
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 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 2.0 USB Type-C 2.0, OTG

Software

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

Comparison Summary

1. Specifications Comparison

FeatureSamsung Galaxy A02sRealme C51Practical Impact
Design
Dimensions164.2 x 75.9 x 9.1 mm167.2 x 76.7 x 8 mmRealme C51 is taller and thinner, potentially feeling slightly more modern and fitting better in pockets.
Weight196g186gRealme C51 is slightly lighter, making it more comfortable for extended use.
Display
Size6.5"6.74"Realme C51 offers a slightly larger viewing area, which is better for media consumption and multitasking.
Resolution720 x 1600720 x 1600Both have the same resolution; image clarity is similar.
PPI270260Similar pixel density, meaning both will have comparable sharpness.
TechnologyPLS LCDIPS LCDRealme C51's IPS LCD usually offers better viewing angles and color accuracy compared to the Samsung's PLS LCD.
Refresh Rate60Hz90HzRealme C51 will have smoother scrolling and animations, leading to a more fluid user experience.
Brightness0 nits0 nitsBoth have identical peak brightness, but the actual screen brightness in real-world use is not provided, limiting a full assessment.
Performance
ChipsetQualcomm Snapdragon 450 (14nm)Unisoc Tiger T612 (12nm)Realme C51's chipset is significantly more powerful, resulting in faster app loading, smoother multitasking, and improved gaming performance.
AnTuTu Score74,800220,000Realme C51 shows drastically better performance, suitable for more demanding apps.
GPUAdreno 506Mali-G57Realme C51 has a more capable GPU, resulting in better graphics performance for gaming and other graphically intensive tasks.
Camera
Rear Camera (Main)13MP, f/1.850MP, f/1.8, 1/2.76", Samsung S5KJN1, 0.64µmRealme C51 offers much higher resolution, resulting in more detailed photos. It also uses a specific sensor.
Selfie Camera5MP, f/2.25MP, f/2.2, 1/5", Samsung S5K5E9, 1.12µmBoth have a similar selfie camera, the Realme C51 sensor indicates slightly larger pixels which might allow for better light capture.
Portrait Mode2MP, f/2.4Not presentSamsung A02s offers a dedicated depth sensor for portrait mode photos.
Macro Lens2MP, f/2.4Not presentSamsung A02s offers a dedicated macro lens for close-up shots.
Video1080p@30fps1080p@30fpsBoth offer the same video recording capabilities.
Camera FeaturesTriple Camera, PDAF, HDRDual Camera, Digital Image Stabilization, PDAF, HDRSamsung A02s has more physical cameras, while the Realme C51 offers digital image stabilization.
Battery
Capacity5000mAh5000mAhBoth have the same battery capacity, suggesting comparable endurance.
Charging15W Fast Charging, Li-Ion33W Fast Charging, Li-PolymerRealme C51 has significantly faster charging, reducing charging times.
Battery FeaturesNon-removableNon-removableBoth have non-removable batteries.
Software
OSAndroid 10 (upgradable to 12)Android 13Realme C51 comes with a newer Android version out of the box.
Connectivity
Wi-Fi802.11b/g/n802.11a/b/g/n/ac, Dual Band, MIMORealme C51 supports faster Wi-Fi standards and has Dual Band and MIMO support, leading to faster and more reliable Wi-Fi.
Bluetooth4.2 LE5.0 LE, LDAC, SBC, AACRealme C51 has a more recent Bluetooth version with higher-quality audio codec support.
GPSGPS, A-GPS, GLONASS, Beidou, GalileoGPS, A-GPS, GLONASS, GalileoSamsung A02s includes Beidou for GPS positioning, potentially offering slightly better location accuracy in specific regions.
SIMDual SIM Dual Standby (Nano SIM + Nano SIM)Dual SIM Dual Standby (Nano SIM + Nano SIM)Both support Dual SIM with Dual Standby.
Storage & Memory
Internal32/64 GB64/128/256 GBRealme C51 offers more internal storage options, particularly the much larger 256GB option.
RAM3/4 GB4/6 GBRealme C51 provides more RAM options, allowing for smoother multitasking.
Expandable StorageNot AvailableNot AvailableNeither phone supports expandable storage.
Audio
QualityBasic Audio FeaturesNoise Cancellation MicrophoneRealme C51 has a noise cancellation microphone which provides a clearer audio experience for the other party.
Security
Security FeaturesBasic Security FeaturesSide-mounted fingerprint sensorRealme C51 offers biometric security for easy unlocking.
Sensors
SensorsProximity, AccelerometerFingerprint, Proximity, AccelerometerRealme C51 features a fingerprint sensor for added security and convenience.

2. Key Differences Analysis

Samsung Galaxy A02s Advantages:

  • Dedicated Depth and Macro Cameras: Offers more versatility in photography with dedicated depth and macro lenses. This enables bokeh effects and close-up details.
  • Beidou for GPS: Includes Beidou for GPS positioning, offering potentially better location accuracy in certain regions.

Practical Implications: The Samsung Galaxy A02s provides more flexibility in specific photography needs, but only when close up photography is needed, and potentially better location tracking in specific regions.

Realme C51 Advantages:

  • Superior Performance: The Unisoc T612 chipset provides significantly better processing power, making it faster for everyday use and gaming.
  • Larger Display with 90Hz Refresh Rate: Larger screen and smoother animations provide a superior viewing and navigation experience.
  • Faster Charging: 33W fast charging is substantially faster, reducing downtime.
  • More Internal Storage and RAM Options: Provides more storage space and RAM for better multitasking.
  • Newer Android OS: Comes with a newer Android version (13), offering the latest features and security updates.
  • Improved Connectivity: Newer Wi-Fi and Bluetooth standards for faster and more reliable connections.
  • Fingerprint Sensor: Offers biometric security with a side-mounted fingerprint sensor for easy unlocking.
  • Better Main Camera Sensor: Larger 50MP main sensor should capture photos with much better detail than the 13MP sensor.

Practical Implications: The Realme C51 offers superior overall performance, faster charging, and a more modern user experience, making it the better choice for daily use.

Significant Trade-offs:

  • Samsung A02s has slightly better camera features but is significantly slower. It includes dedicated depth and macro cameras but is overall much slower than the Realme C51.
  • Realme C51 loses the depth and macro cameras. Does not have dedicated depth or macro cameras like the A02s.

3. User Profiles & Recommendations

Ideal User for Samsung Galaxy A02s:

  • Budget-Conscious Users: Users who primarily need a basic smartphone for communication and light usage, while having flexibility in camera features with the extra depth and macro lens.
  • Users who need the extra Beidou GPS: Users who need specific location tracking through the use of Beidou.

Use Cases: Basic communication, very light social media browsing, casual photography with depth and macro, and basic navigation.

Ideal User for Realme C51:

  • Everyday Users: Users who want a fast, modern phone for daily tasks, social media, and media consumption.
  • Users who value smooth operation: Those who prefer smoother animations, faster app loading, and multitasking.
  • Price-conscious power users: Users who want strong performance on a budget without breaking the bank.
  • Mobile Gamers (light): Users looking for a phone that can handle light games and mobile entertainment.

Use Cases: Social media, web browsing, light gaming, watching videos, daily productivity, and capturing quick photos.

Price-to-Value Ratio:

  • Realme C51: Offers a significantly better price-to-value ratio due to superior performance, a smoother display, faster charging, and a more modern operating system.
  • Samsung A02s: Offers an entry level device for the lowest budget, with less performance but has the added versatility of macro and depth cameras.

4. Decision Framework

Key Questions to Consider:

  1. What is your budget? While both are budget devices, the Realme C51 may cost a bit more.
  2. What is your priority for performance? If you value smooth, quick performance, the Realme C51 is a much better choice.
  3. How important are specific camera features? If you prioritize macro and depth cameras, the Samsung A02s has an advantage but if you want better quality main photos, the Realme C51 is better.

Scenario-Based Recommendations:

  • Scenario 1: Tight Budget & Very Basic Use: The Samsung Galaxy A02s might be suitable if the budget is extremely tight, and performance isn't a high priority and you need the extra camera versatility.
  • Scenario 2: Smooth Performance & Modern Features: The Realme C51 is the better choice if you want smoother performance and modern features for a better user experience.
  • Scenario 3: Photography Versatility: The Samsung Galaxy A02s has the slight advantage of having a macro and depth camera but would likely be a slower experience. The Realme C51 has a better main camera.

What I Would Choose and Why!

I would choose the Realme C51. While the Samsung A02s has a depth and macro camera, which I might use occasionally, the significant difference in performance, screen smoothness, charging speed, and overall modernity of the Realme C51 makes it the far superior choice for daily use. The faster chipset, 90Hz display, and faster charging would have a more significant impact on my day-to-day experience than the occasional macro or depth camera shots offered by the Samsung Galaxy A02s. The 50MP main camera sensor on the Realme C51 would also provide a better main picture for sharing with friends and family. I also prefer the added security of the fingerprint sensor and the faster wifi and bluetooth capabilities.

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.