Realme 6 Pro vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme 6 Pro
Realme 6 Pro
Realme
Realme C51
Realme C51
Realme

General

Launch Date March 13, 2020 August 1, 2023
Release Year 2020 2023

Physical

Volume 110.5 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.27 "/g 3.62 "/g
Weight 202 g 186 g
Height 163.8 mm 167.2 mm
Width 75.8 mm 76.7 mm
Thickness 8.9 mm 8 mm
Foldable Design No No
Available Colors
  • Lightning Blue
  • Lightning Orange
  • Lightning Red
  • Mint Green
  • Carbon Black

Display

Screen Size 6.6 " 6.74 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 84.7 % 85.5 %
Pixel Density 399 PPI 260 PPI
Refresh Rate 90 Hz 90 Hz
Typical Brightness 480 nits N/A
HBM Brightness N/A N/A
Peak Brightness N/A 560 nits

Hardware

Battery Capacity per Screen Area 98.71 mAh/in² 110.07 mAh/in²
Battery Density 38.91 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM7125 Snapdragon 720G (8 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 618 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

FeatureRealme 6 ProRealme C51Practical Impact
Design
Dimensions163.8 x 75.8 x 8.9 mm, 202g167.2 x 76.7 x 8 mm, 186gThe Realme C51 is slightly taller, marginally narrower, thinner, and noticeably lighter, making it potentially more comfortable for one-handed use and pocket portability.
Build QualityGorilla Glass 5UnknownThe Realme 6 Pro has superior screen protection against scratches and drops. The C51's screen protection is unknown, raising durability concerns.
Display
Size6.6"6.74"The Realme C51 offers a slightly larger screen, providing a more immersive viewing experience for media consumption.
Resolution1080 x 2400 (FHD+)720 x 1600 (HD+)The Realme 6 Pro has a significantly sharper display due to its higher resolution, resulting in clearer text and images. The C51's lower resolution may appear pixelated to some users.
Refresh Rate90Hz90HzBoth phones offer smooth scrolling and animations thanks to the 90Hz refresh rate.
Performance
ChipsetSnapdragon 720G (8nm)Unisoc Tiger T612 (12nm)The Realme 6 Pro's Snapdragon 720G offers significantly better performance, especially for demanding tasks like gaming and multitasking. The C51's Unisoc processor is likely sufficient for basic usage but may struggle with heavier workloads.
RAM6GB/8GB4GB/6GBThe Realme 6 Pro offers more RAM, enabling smoother multitasking and better performance with multiple apps open.
Antutu Score344,071220,000This quantifies the performance difference, confirming the 6 Pro's significant advantage in speed and responsiveness.
Camera
Main Camera64MP, f/1.8, 1/1.72" sensor50MP, f/1.8, 1/2.76" sensorThe Realme 6 Pro's main camera boasts a higher resolution and a larger sensor, likely capturing more detail and performing better in low light.
Selfie Camera16MP, f/2.05MP, f/2.2The Realme 6 Pro's selfie camera offers significantly higher resolution and a wider aperture, promising better quality self-portraits.
Additional CamerasTelephoto, Wide Angle, MacroNoneThe Realme 6 Pro offers greater versatility with dedicated telephoto, wide-angle, and macro lenses.
Battery
Capacity4300 mAh5000 mAhThe Realme C51 has a larger battery capacity, potentially lasting longer on a single charge.
Charging30W33WThe Realme C51 offers slightly faster charging speeds.

2. Key Differences Analysis

Realme 6 Pro Advantages:

  • Significantly better performance: The Snapdragon 720G and higher RAM provide a smoother and more responsive user experience, particularly for demanding tasks.
  • Superior camera system: Higher resolution sensors, larger sensor size on the main camera, and additional lenses (telephoto, wide-angle, macro) offer greater versatility and image quality.
  • Sharper display: The FHD+ resolution provides a noticeably clearer and more detailed viewing experience.
  • More durable screen: Gorilla Glass 5 offers better protection against scratches and damage.

Realme C51 Advantages:

  • Longer battery life: The larger 5000 mAh battery is likely to provide extended usage time.
  • Slightly faster charging: 33W charging will top up the battery quicker than the 6 Pro's 30W.
  • Lighter and thinner: More comfortable for one-handed use and portability.
  • Newer Android Version: Ships with Android 13, offering potential software advantages and longer support.

Trade-offs:

  • Realme C51: Sacrifices performance, camera quality, and display sharpness for longer battery life, faster charging, and a lighter design.
  • Realme 6 Pro: Trades battery capacity and slightly slower charging for superior performance, camera system, and display quality.

3. User Profiles & Recommendations

Realme 6 Pro: Ideal for users who prioritize performance, camera quality, and a sharp display. Suitable for gamers, photographers, and those who multitask heavily.

Realme C51: Best suited for budget-conscious users who prioritize battery life and basic functionality. Good for light users focusing on communication, social media, and web browsing.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget? The Realme C51 is likely more affordable.
  2. What are your primary smartphone usage patterns? (Gaming, photography, social media, etc.)
  3. Which features are most important to you? (Performance, battery life, camera quality, display sharpness)

Scenario-Based Recommendations:

  • Heavy gamer/photographer: Realme 6 Pro
  • Light user prioritizing battery life: Realme C51
  • Budget-conscious user needing decent performance: Consider the Realme 6 Pro if within budget, otherwise the C51 if battery life is paramount.

My Choice: Realme 6 Pro

While the Realme C51 offers advantages in battery life and charging speed, the Realme 6 Pro's significantly superior performance, versatile camera system, sharper display, and durable build make it the better overall device for my needs. I prioritize a smooth user experience, high-quality photos, and a vibrant display, and I'm willing to compromise slightly on battery capacity to achieve that. The unknown screen protection on the C51 is also a concern. The performance difference between the Snapdragon 720G and the Unisoc T612 is substantial and would heavily impact daily usage for me. The superior camera system of the 6 Pro, with its additional lenses and larger sensor, is also a major deciding factor.

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.