Oppo A53 vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A53
Oppo A53
Oppo
Realme C51
Realme C51
Realme

General

Launch Date August 25, 2020 August 1, 2023
Release Year 2020 2023

Physical

Volume 103.39 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.49 "/g 3.62 "/g
Weight 186 g 186 g
Height 163.9 mm 167.2 mm
Width 75.1 mm 76.7 mm
Thickness 8.4 mm 8 mm
Foldable Design No No
Available Colors
  • Fairy White
  • Electric Black
  • Fancy Blue
  • 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 82.9 % 85.5 %
Pixel Density 270 PPI 260 PPI
Refresh Rate 90 Hz 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 48.36 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support No Yes
Chipset Qualcomm SM4250 Snapdragon 460 (11 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (4x1.8 GHz Kryo 240 & 4x1.6 GHz Kryo 240) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 610 Mali-G57

Connectivity

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

Software

Operating System Android Android
Initial OS Version 10 13
Maximum OS Version 11

Comparison Summary

1. Specifications Comparison

Here's a detailed comparison of the Oppo A53 and Realme C51, focusing on practical implications:

Design

FeatureOppo A53Realme C51Practical Impact
Dimensions163.9 x 75.1 x 8.4 mm167.2 x 76.7 x 8 mmRealme C51 is slightly taller and wider, potentially making it feel larger in hand. Oppo A53 is slightly thicker, but the difference is negligible.
Weight186g186gBoth phones feel similarly weighted.
BuildStandardStandardStandard smartphone build
Fingerprint SensorRear-mountedSide-mountedSide-mounted sensors are generally considered more convenient and faster to access.

Display

FeatureOppo A53Realme C51Practical Impact
Size6.5"6.74"Realme C51 provides a slightly larger viewing area for multimedia consumption and gaming.
Resolution720x1600720x1600Both have the same resolution which isn't great but is expected for budget phones.
PPI270260Similar pixel density means both displays will have comparable sharpness, though neither are exceptionally sharp.
TechnologyIPS LCDIPS LCDSimilar display technology means same viewing angles and color reproduction
Refresh Rate90Hz90Hz90Hz refresh rate allows for smoother scrolling and animations compared to standard 60Hz displays.
Brightness0 nits0 nitsImpossible to determine without brightness values, could be hard to see in direct sunlight.

Performance

FeatureOppo A53Realme C51Practical Impact
ChipsetQualcomm Snapdragon 460 (11 nm)Unisoc Tiger T612 (12 nm)Realme C51's Unisoc chipset offers significantly better performance than the Snapdragon 460, resulting in smoother multitasking, faster app loading, and better gaming.
AnTuTu Score34,985220,000Vast difference, the Realme C51 will provide a much better overall user experience.
GPUAdreno 610Mali-G57 MP1The Mali-G57 MP1 in the Realme C51 offers better graphics performance, crucial for gaming and graphically intensive applications.
RAM2GB or 4GB4GB or 6GBRealme C51's higher RAM options allow for better multitasking and smoother operation with multiple apps open.

Camera

FeatureOppo A53Realme C51Practical Impact
Main Camera13MP, f/2.250MP, f/1.8Realme C51's higher resolution and wider aperture should result in significantly better image quality, especially in low-light conditions.
Selfie Camera5MP5MP, f/2.2Similar selfie camera resolution, but image quality depends on sensor and software processing.
Video Recording1080p@30fps1080p@30fpsBoth capable of basic video recording for social media.
Camera FeaturesDigital zoom, Digital image stabilization, Autofocus, Touch focus, Continuous shooting, Geotagging, Panorama, HDR, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timerDigital zoom, Dual camera, Digital image stabilization, Autofocus, Touch focus, Phase detection autofocus (PDAF), Geotagging, Panorama, HDR, Face detection, White balance settings, ISO settings, Exposure compensation, Scene mode, Self-timerRealme C51's PDAF and dual camera can contribute to faster focusing and potentially better portrait mode photos.

Battery

FeatureOppo A53Realme C51Practical Impact
Capacity3075mAh5000mAhRealme C51's significantly larger battery provides much longer battery life, reducing the need for frequent charging.
ChargingLi-Ion33W fast charging, Li-PolymerRealme C51's 33W fast charging allows for significantly quicker charging times compared to the Oppo A53's slow or standard charging.

Software

FeatureOppo A53Realme C51Practical Impact
OSAndroid 10 (upgradable to 11)Android 13Realme C51 offers a more up-to-date Android version, with the latest features, security patches, and potentially better performance optimizations.

Connectivity

FeatureOppo A53Realme C51Practical Impact
Wi-Fi802.11 b/g/n802.11 a/b/g/n/acRealme C51 supports faster and more reliable Wi-Fi connections with 802.11ac support and dual-band capabilities.
Bluetooth4.05.0 LERealme C51 has a more modern Bluetooth version, offering faster speeds, lower energy consumption, and improved range.
GPSGPS, A-GPSGPS, A-GPS, GLONASS, GalileoRealme C51 offers more accurate and reliable location tracking with support for GLONASS and Galileo satellite systems.

Storage

FeatureOppo A53Realme C51Practical Impact
Internal16GB or 64GB64GB or 128GB or 256GBRealme C51 offers larger internal storage options, allowing users to store more apps, photos, and videos.
Expandable StorageNoNoNeither phone offers expandable storage.

2. Key Differences Analysis

Oppo A53 Advantages:

  • None: In comparison to the Realme C51, the Oppo A53 struggles to present any significant advantages due to its older hardware and software.

Realme C51 Advantages:

  • Significantly Better Performance: The Unisoc T612 chipset provides a much smoother and more responsive user experience than the Snapdragon 460.
  • Superior Camera: The 50MP main camera captures more detailed and higher-quality photos, especially in good lighting conditions.
  • Larger Battery and Fast Charging: The 5000mAh battery and 33W fast charging offer significantly longer battery life and faster charging times.
  • Newer Software: Android 13 offers the latest features, security updates, and performance optimizations.
  • More Storage Options: Larger storage options (up to 256GB) allow users to store more data.
  • Better Connectivity: Supports faster Wi-Fi standards and Bluetooth 5.0 LE.

Trade-offs:

  • Realme C51: Might be slightly larger and less comfortable for some users with smaller hands.

3. User Profiles & Recommendations

Oppo A53:

  • Ideal User: Someone needing a basic smartphone for calls and light social media use, and who prioritizes familiarity and ease of use over performance.
  • Use Cases: Simple communication, basic web browsing, occasional photo taking.

Realme C51:

  • Ideal User: Budget-conscious users who want a phone with good performance, a decent camera, and long battery life.
  • Use Cases: Social media, casual gaming, photography, streaming videos, and everyday tasks.

Price-to-Value Ratio:

  • The Realme C51 offers a significantly better price-to-value ratio due to its superior performance, camera, battery life, and software.

4. Decision Framework

Key Questions for Buyers:

  1. How important is performance for your daily usage? If you need a phone for demanding apps or gaming, the Realme C51 is the clear choice.
  2. How much do you value battery life and fast charging? The Realme C51's larger battery and fast charging are a significant advantage.
  3. Do you care about having the latest software features and security updates? The Realme C51 ships with a much newer version of Android.

Scenario-Based Recommendations:

  • Scenario 1: "I need a phone primarily for making calls, sending messages, and checking email." - Realme C51: While the Oppo A53 could handle this, the smoother performance of the Realme C51 will make even basic tasks more enjoyable.
  • Scenario 2: "I want a phone for social media, watching videos, and playing casual games." - Realme C51: The Realme C51's superior performance, camera, and display make it the better option for these activities.
  • Scenario 3: "I need a phone with the longest possible battery life." - Realme C51: The Realme C51's 5000mAh battery is a clear winner.

What I Would Choose and Why

I would choose the Realme C51 without hesitation. The performance difference between the Snapdragon 460 in the Oppo A53 and the Unisoc T612 in the Realme C51 is massive, making the Realme C51 a much smoother and more enjoyable phone to use for any task, no matter how simple. The superior camera, larger battery with fast charging, and newer Android version are all significant advantages that contribute to a better overall user experience. Even if the Oppo A53 were slightly cheaper, the improved functionality and longevity of the Realme C51 would make it the better investment.

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.