Sony Xperia 10 III vs Realme C51 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C51
Realme C51
Realme

General

Launch Date June 11, 2021 August 1, 2023
Release Year 2021 2023

Physical

Volume 86.92 cm³ 102.59 cm³
Screen Size to Weight Ratio 3.55 "/g 3.62 "/g
Weight 169 g 186 g
Height 154 mm 167.2 mm
Width 68 mm 76.7 mm
Thickness 8.3 mm 8 mm
Foldable Design No No
Available Colors
  • Black
  • Blue
  • White
  • Pink
  • Mint Green
  • Carbon Black

Display

Screen Size 6 " 6.74 "
Resolution 1080 x 2520 720 x 1600
Aspect Ratio 21:9 20:9
Screen-to-Body Ratio 80.3 % 85.5 %
Pixel Density 457 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 125.00 mAh/in² 110.07 mAh/in²
Battery Density 51.77 mAh/cm³ 48.74 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM6350 Snapdragon 690 5G (8 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 619 Mali-G57

Connectivity

USB Version 3.1 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.1, OTG USB Type-C 2.0, OTG

Software

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

Comparison Summary

Sony Xperia 10 III vs. Realme C51: Detailed Comparison

1. Specifications Breakdown

Design & Build

FeatureSony Xperia 10 IIIRealme C51Real-World Implications
Dimensions154 × 68 × 8.3 mm167.2 × 76.7 × 8 mmXperia 10 III is more compact and easier to handle one-handed. Realme C51 is larger, providing more screen real estate but may feel bulkier.
Weight169g186gXperia 10 III is significantly lighter, making it more comfortable for extended use.
Screen ProtectionGorilla Glass 6UnknownSony offers better drop protection, important for durability.

Display

FeatureSony Xperia 10 IIIRealme C51Real-World Implications
Size6.0" OLED6.74" IPS LCDRealme C51 has a larger screen, but OLED on the Xperia offers deeper blacks and better contrast.
Resolution1080x2520 (457 PPI)720x1600 (260 PPI)Xperia’s display is sharper, better for reading and media. Realme’s lower resolution is noticeable on a big screen.
Refresh Rate60Hz90HzRealme C51 feels smoother in scrolling and animations.

Performance

FeatureSony Xperia 10 IIIRealme C51Real-World Implications
ChipsetSnapdragon 690 5GUnisoc Tiger T612Xperia has a stronger CPU/GPU, better for gaming and multitasking.
AnTuTu Score275,000220,000~25% faster performance on the Xperia.
RAM6GB4GB/6GB6GB on both is decent, but Realme’s base model has just 4GB, which may slow down over time.

Camera

FeatureSony Xperia 10 IIIRealme C51Real-World Implications
Main Camera12MP (f/1.8, Sony Exmor RS)50MP (f/1.8, Samsung S5KJN1)Realme has higher resolution, but Sony’s sensor likely has better processing.
Ultrawide & Telephoto8MP UW + 8MP TeleNoneXperia wins with versatility—better for landscapes and zoom shots.
Selfie Cam8MP (f/2.0)5MP (f/2.2)Sony’s selfie cam is better in low light.
Video Recording4K@30fps, 120fps slow-mo1080p@30fps, no slow-moXperia is far superior for video creators.

Battery & Charging

FeatureSony Xperia 10 IIIRealme C51Real-World Implications
Capacity4500mAh5000mAhRealme lasts longer per charge.
Charging Speed18W33WRealme charges much faster (~1hr vs. ~2hrs for Sony).

2. Key Insights

Sony Xperia 10 III Strengths:

Better display (OLED, sharper, better colors)
Superior cameras (triple setup, 4K video, better selfies)
Faster chipset (better gaming & multitasking)
More premium build (Gorilla Glass 6, lighter)

Realme C51 Strengths:

Bigger battery & faster charging (5000mAh, 33W)
Higher refresh rate (90Hz for smoother UI)
Newer OS out of the box (Android 13 vs. Android 11)
More storage options (up to 256GB)

Trade-Offs & Limitations:

  • Realme C51 has a lower-resolution display (noticeable on a 6.74" screen).
  • Xperia 10 III has slower charging and a smaller battery.
  • Realme’s Unisoc chipset is weaker for heavy tasks.

3. User Profiles & Recommendations

Who Should Buy the Sony Xperia 10 III?

  • Photography & videography lovers (better cameras, 4K video)
  • Media consumers (OLED screen, sharper display)
  • Performance-focused users (stronger processor)
  • Compact phone fans (lighter, easier to hold)

Who Should Buy the Realme C51?

  • Battery life enthusiasts (5000mAh + 33W fast charging)
  • Budget-conscious buyers (likely cheaper)
  • Casual users (bigger screen for videos, smoother scrolling)

4. Buying Decision Framework

3 Questions to Ask Yourself:

  1. Do I prioritize camera quality or battery life?
    • Camera → Sony | Battery → Realme
  2. Do I prefer a sharper OLED screen or a bigger 90Hz display?
    • OLED → Sony | Big screen → Realme
  3. Do I need better performance or faster charging?
    • Performance → Sony | Charging → Realme

Scenario-Based Recommendations:

  • "I watch a lot of movies" → Sony (OLED display)
  • "I hate charging my phone" → Realme (5000mAh + 33W)
  • "I take lots of photos" → Sony (better cameras)

Final Verdict: Which Would I Choose?

I’d pick the Sony Xperia 10 III.

Why?

  • Better display & cameras matter more to me than battery life.
  • Snapdragon 690 will age better than the Unisoc T612.
  • More compact & premium design feels better in hand.

However, if battery life is your #1 priority, the Realme C51 is the clear winner.

Alex Griffin
Alex Griffin

Technology analyst specializing in mobile devices and consumer electronics.

Core Expertise

  • Mobile technology analysis
  • Consumer electronics evaluation
  • Technical specification interpretation
  • User experience insights

Professional Mission Empowering readers to make informed technology decisions by transforming intricate specifications into understandable, practical guidance.

Demystifying technology, one device at a time.