Sony Xperia 10 III vs Realme 12x - Detailed Phone Comparison

Detailed Comparison

Specification
Realme 12x
Realme 12x
Realme

General

Launch Date June 11, 2021 April 7, 2024
Release Year 2021 2024

Physical

Volume 86.92 cm³ 99.56 cm³
Screen Size to Weight Ratio 3.55 "/g 3.51 "/g
Weight 169 g 190 g
Height 154 mm 165.6 mm
Width 68 mm 76.1 mm
Thickness 8.3 mm 7.9 mm
Foldable Design No No
Available Colors
  • Black
  • Blue
  • White
  • Pink
  • Glowing Black
  • Feather Green

Display

Screen Size 6 " 6.67 "
Resolution 1080 x 2520 720 x 1604
Aspect Ratio 21:9 20:9
Screen-to-Body Ratio 80.3 % 85.1 %
Pixel Density 457 PPI 264 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A 625 nits
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 125.00 mAh/in² 112.39 mAh/in²
Battery Density 51.77 mAh/cm³ 50.22 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM6350 Snapdragon 690 5G (8 nm) Mediatek Dimensity 6100+ (6 nm)
CPU Octa-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver) Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
GPU Adreno 619 Mali-G57 MC2

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 13

Comparison Summary

Sony Xperia 10 III vs. Realme 12x: A Practical Showdown

Here’s a detailed, user-focused comparison of these two mid-range smartphones, breaking down how their specs translate to real-world use.


1. Specifications Breakdown

Design & Build

FeatureSony Xperia 10 IIIRealme 12xReal-World Implications
Dimensions154 × 68 × 8.3 mm165.6 × 76.1 × 7.9 mmXperia is more compact and easier to handle; Realme is larger, offering a bigger screen.
Weight169g190gXperia is lighter, better for one-handed use.
Screen ProtectionGorilla Glass 6UnknownXperia has better drop protection.

Verdict:

  • Xperia 10 III wins for portability and durability.
  • Realme 12x is bulkier but offers a bigger display.

Display

FeatureSony Xperia 10 IIIRealme 12xReal-World Implications
Size6" OLED6.67" IPS LCDRealme has a bigger screen (better for media), but Xperia has richer colors (OLED vs. LCD).
Resolution1080x2520 (457 PPI)720x1604 (264 PPI)Xperia is sharper—text and images look crisper.
Refresh Rate60Hz120HzRealme’s 120Hz makes scrolling smoother, but the lower resolution reduces clarity.

Verdict:

  • Xperia 10 III for display quality (OLED + high PPI).
  • Realme 12x for smoothness (120Hz) and size, but at the cost of sharpness.

Performance & Storage

FeatureSony Xperia 10 IIIRealme 12xReal-World Implications
ChipsetSnapdragon 690 (8nm)Dimensity 6100+ (6nm)Realme is faster and more power-efficient.
AnTuTu Score275,000442,599Realme is 61% faster—better for gaming & multitasking.
RAM6GB12GBRealme handles heavy apps better (e.g., gaming, video editing).
Storage128GB256GB/512GBRealme has double/triple the storage.

Verdict:

  • Realme 12x is the clear winner in raw performance and future-proofing.

Camera

FeatureSony Xperia 10 IIIRealme 12xReal-World Implications
Main Camera12MP (f/1.8)50MP (f/1.8)Realme has higher resolution, but Xperia’s Sony sensor may have better processing.
Ultrawide8MP (f/2.2)❌ No ultrawideXperia is better for landscape shots.
Telephoto8MP (f/2.4)❌ No telephotoXperia has optical zoom capability.
Selfie Camera8MP (f/2.0)8MP (f/2.1)Similar performance, slight edge to Xperia for aperture.
Video Recording4K@30fps1080p@30fpsXperia is better for videography.

Verdict:

  • Xperia 10 III has more versatile lenses (ultrawide, telephoto) and 4K video.
  • Realme 12x has a high-resolution main sensor, but lacks flexibility.

Battery & Charging

FeatureSony Xperia 10 IIIRealme 12xReal-World Implications
Capacity4500mAh5000mAhRealme has longer battery life.
Charging Speed18W15WXperia charges slightly faster.

Verdict:

  • Realme 12x lasts longer, but both charge slowly compared to modern standards.

2. Key Insights

Sony Xperia 10 III’s Strengths

Sharper OLED display (better colors, higher PPI)
More versatile camera system (ultrawide, telephoto, 4K video)
More compact and durable (Gorilla Glass 6, lighter weight)

Realme 12x’s Strengths

Much faster performance (61% higher benchmark)
Bigger battery (5000mAh vs. 4500mAh)
Higher refresh rate (120Hz)
More RAM & storage (12GB/512GB vs. 6GB/128GB)

Trade-Offs

  • Xperia 10 III sacrifices performance for display & camera quality.
  • Realme 12x sacrifices display sharpness & camera versatility for speed.

3. User Profiles & Recommendations

Who Should Get the Sony Xperia 10 III?

📌 Media enthusiasts who want a sharp OLED screen.
📌 Photography lovers who need ultrawide & telephoto lenses.
📌 Compact phone fans who prefer lightweight designs.

Who Should Get the Realme 12x?

📌 Gamers & power users who need faster performance.
📌 Budget-conscious buyers who want more RAM & storage.
📌 Big-screen lovers who prefer smooth scrolling (120Hz).


4. Buying Decision Framework

3 Questions to Help You Decide:

  1. Do you prioritize camera versatility or raw speed?

    • Camera?Xperia 10 III
    • Speed?Realme 12x
  2. Do you prefer a sharp OLED display or a smoother 120Hz LCD?

    • Sharpness?Xperia 10 III
    • Smoothness?Realme 12x
  3. Do you need a compact phone or a big-screen experience?

    • Compact?Xperia 10 III
    • Big screen?Realme 12x

Final Verdict: Which Would I Choose?

I would pick the Realme 12x.

Why?

  • Future-proof performance (Dimensity 6100+ & 12GB RAM).
  • Bigger battery for longer usage.
  • More storage (up to 512GB).

But:

  • If camera flexibility or display quality is critical, the Xperia 10 III is still a strong contender.

Ultimately, the Realme 12x is the better all-rounder for most users, while the Xperia 10 III suits niche needs (photography, compact design).

Which fits your lifestyle better? 🚀

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.