Realme C55 vs Realme 12x - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C55
Realme C55
Realme
Realme 12x
Realme 12x
Realme

General

Launch Date March 8, 2023 April 7, 2024
Release Year 2023 2024

Physical

Volume 99.3 cm³ 99.56 cm³
Screen Size to Weight Ratio 3.55 "/g 3.51 "/g
Weight 189.5 g 190 g
Height 165.6 mm 165.6 mm
Width 75.9 mm 76.1 mm
Thickness 7.9 mm 7.9 mm
Foldable Design No No
Available Colors
  • Sun Shower
  • Rainy Night
  • Rainforest
  • Glowing Black
  • Feather Green

Display

Screen Size 6.72 " 6.67 "
Resolution 1080 x 2400 720 x 1604
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 86.7 % 85.1 %
Pixel Density 392 PPI 264 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 625 nits
Peak Brightness 680 nits N/A

Hardware

Battery Capacity per Screen Area 110.72 mAh/in² 112.39 mAh/in²
Battery Density 50.35 mAh/cm³ 50.22 mAh/cm³
Battery Capacity 5000 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek MT6769H Helio G88 (12 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Mali-G52 MC2 Mali-G57 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 13 14
Maximum OS Version

Comparison Summary

1. Specifications Comparison

FeatureRealme C55Realme 12xPractical Impact
Design
Dimensions (mm)165.6 x 75.9 x 7.9165.6 x 76.1 x 7.9Virtually identical dimensions; negligible real-world difference in handling.
Weight (g)189.5190Negligible weight difference; both phones are lightweight and comfortable to hold.
Display
Size (inches)6.726.67Negligible size difference.
Resolution (px)1080 x 2400720 x 1604C55 offers significantly sharper visuals due to much higher resolution, resulting in clearer text, images, and videos. 12x's lower resolution will appear pixelated.
Refresh Rate (Hz)9012012x offers smoother scrolling and animations due to the higher refresh rate. However, the lower resolution might negate some of this benefit.
Display TypeIPS LCDIPS LCDBoth use IPS LCD technology, offering decent color reproduction and viewing angles but lacking the deep blacks and vibrant colors of AMOLED displays.
Peak Brightness (nits)680 (peak)500 (typ), 625 (HBM)C55 likely offers better visibility in direct sunlight due to higher peak brightness. 12x's typical brightness is lower, though peak may be comparable; clarity needed.
Performance
ChipsetHelio G88 (12nm)Dimensity 6100+ (6nm)12x boasts a significantly more powerful and efficient processor due to smaller node size and architecture. This translates to smoother multitasking, faster app loading.
CPUOcta-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)12x has a faster and more modern CPU architecture, resulting in noticeably improved performance.
GPUMali-G52 MC2Mali-G57 MC212x has a more capable GPU, leading to better gaming performance and smoother graphics rendering.
RAM6GB/8GB12GB12x offers double the RAM in the compared variant, enabling superior multitasking and preventing apps from closing in the background.
OSAndroid 13Android 1412x comes with a newer Android version, offering potential performance improvements, security updates, and new features.
Camera
Main Camera (MP)6450While C55 has a higher megapixel count, sensor quality and processing play a crucial role in image quality. Missing sensor details hinder a comprehensive comparison.
Selfie Camera (MP)88Same resolution; other factors like aperture and sensor size will determine actual image quality. Detailed sensor information needed for proper comparison.
Battery
Capacity (mAh)50005000Identical battery capacity suggests similar battery life, but actual usage will depend on software optimization and hardware efficiency.
Charging (W)33W Fast Charging15W Fast ChargingC55 offers significantly faster charging.

2. Key Differences Analysis

Realme C55 Advantages:

  • Sharper Display: Significantly higher resolution for clearer visuals.
  • Brighter Display: Potentially better visibility outdoors.
  • Faster Charging: Substantially reduced charging times.

Realme 12x Advantages:

  • Superior Performance: More powerful and efficient chipset, CPU, and GPU.
  • Smoother Experience: Higher refresh rate and double the RAM.
  • Newer OS: Android 14 with latest features and security updates.
  • 5G Connectivity: Supports faster cellular data speeds.

3. User Profiles & Recommendations

Realme C55: Suitable for budget-conscious users who prioritize display quality for media consumption and casual gaming. Less demanding users who don't require top-tier performance.

Realme 12x: Ideal for users who prioritize performance for demanding tasks like gaming, multitasking, and using resource-intensive apps. Benefits users who need 5G connectivity.

4. Decision Framework

Key Questions for Buyers:

  1. What is your budget?
  2. What are your primary use cases (e.g., gaming, media consumption, social media)?
  3. Do you require 5G connectivity?

Scenario-Based Recommendations:

  • Tight budget, media consumption focus: Realme C55
  • Performance focused, gamer: Realme 12x
  • Future-proof with 5G, strong performance: Realme 12x

My Choice: Realme 12x

While the Realme C55 offers a sharper display, the Realme 12x's significantly superior performance, newer OS, doubled RAM, smoother refresh rate, and 5G connectivity make it a more compelling choice for long-term use. The performance difference in daily tasks and future-proofing with 5G outweighs the C55's display advantages for me. The faster CPU, GPU, and larger RAM will provide a smoother and more responsive experience, making it more enjoyable to use for a wider range of tasks. Though the 12x has a lower resolution display, the 120Hz refresh rate should partially compensate in perceived smoothness. Additionally, the 6nm chipset in the 12x suggests better battery efficiency compared to the 12nm chipset in the C55.

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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  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.