Oppo A55 vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Oppo A55
Oppo A55
Oppo
Realme C51
Realme C51
Realme

General

Launch Date October 1, 2021 August 1, 2023
Release Year 2021 2023

Physical

Volume 104.03 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.37 "/g 3.62 "/g
Weight 193 g 186 g
Height 163.6 mm 167.2 mm
Width 75.7 mm 76.7 mm
Thickness 8.4 mm 8 mm
Foldable Design No No
Available Colors
  • Green
  • Starry Black
  • Rainbow Blue
  • Mint Green
  • Carbon Black

Display

Screen Size 6.51 " 6.74 "
Resolution 720 x 1600 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 82.6 % 85.5 %
Pixel Density 270 PPI 260 PPI
Refresh Rate N/A 90 Hz
Typical Brightness 480 nits N/A
HBM Brightness N/A N/A
Peak Brightness 550 nits 560 nits

Hardware

Battery Capacity per Screen Area 117.98 mAh/in² 110.07 mAh/in²
Battery Density 48.06 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek MT6765G Helio G35 (12 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU PowerVR GE8320 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 11 13
Maximum OS Version

Comparison Summary

Let's dive into a user-centered comparison of the Oppo A55 and the Realme C51, moving beyond the raw specifications to understand how these devices translate into real-world experiences.

1. Design and Usability Assessment:

FeatureOppo A55Realme C51User Experience Impact
Interface DesignColorOS 11 (Based on Android 11)Realme UI R Edition (Based on Android 13)Realme C51 offers a potentially more modern and updated interface with Android 13, potentially leading to a smoother experience.
Display6.51" IPS LCD (270 ppi)6.74" IPS LCD (260 ppi), 90HzRealme C51's larger display and faster refresh rate provide a more immersive and responsive visual experience.
Interaction FlowStandard Android navigationPotentially optimized for Realme UI RWhile both offer standard Android navigation, Realme UI might offer specific optimizations for smoother transitions and gestures.
Design Ergonomics193g, 8.4mm thick186g, 8.0mm thickRealme C51 is slightly lighter and thinner, potentially offering a more comfortable one-handed experience.
AccessibilityStandard Android 11 accessibility featuresStandard Android 13 accessibility featuresBoth devices likely offer similar accessibility features, but Android 13 may have newer, more comprehensive options.

2. Narrative-Driven Feature Exploration:

Scenario: Imagine a student using their phone for online classes, social media, and casual gaming.

  • Oppo A55: The student might find the A55 reliable for basic tasks. The battery life is good, but the screen's lower refresh rate might not feel as smooth when scrolling through social media or playing games.

  • Realme C51: The student would appreciate the C51's larger, smoother display for a more immersive experience during online lectures and gaming. The faster refresh rate makes scrolling through social feeds feel more fluid. The quicker charging speed is a significant advantage between classes or during short breaks.

3. Inclusive Technology Evaluation:

  • For a budget-conscious user: The Realme C51 offers more value with its updated OS, larger display, and faster charging, at a competitive price point.

  • For a user prioritizing a modern OS: The Realme C51's Android 13 provides a more up-to-date software experience with potential performance and security improvements.

  • For a user who values a comfortable grip: The Realme C51's slightly thinner and lighter profile might be preferable for extended use.

4. Design-Centric Decision Framework:

While both phones offer similar core functionalities, the Realme C51 demonstrates a more user-centered design approach with its larger, smoother display, faster charging, and newer operating system. These features translate into tangible improvements in daily use, creating a more enjoyable and engaging user experience.

My Choice: I would choose the Realme C51. While seemingly minor upgrades on paper, the 90Hz refresh rate significantly impacts the feeling of responsiveness and fluidity in everyday tasks. The newer Android version promises better long-term support and features. Finally, the faster charging speed addresses a crucial pain point for many users - waiting for their phone to power up. The C51's design choices reflect a conscious effort to enhance the user experience, making it a more compelling option for a wider range of users. It aligns more closely with my mission of advocating for intuitive and inclusive technology design.

Sophia Rodriguez
Sophia Rodriguez

Technology Communications Specialist

Expert in transforming complex technological innovations into accessible, engaging narratives.

Key Strengths:

  • Technology storytelling
  • User experience design analysis
  • Inclusive technology communication
  • Design-driven technology insights

Bridging technical complexity with human-centered understanding.