Sony Xperia 10 III vs OnePlus 9RT 5G - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9RT 5G
OnePlus 9RT 5G
Oneplus

General

Launch Date June 11, 2021 October 19, 2021
Release Year 2021 2021

Physical

Volume 86.92 cm³ 100.43 cm³
Screen Size to Weight Ratio 3.55 "/g 3.34 "/g
Weight 169 g 198.5 g
Height 154 mm 162.2 mm
Width 68 mm 74.6 mm
Thickness 8.3 mm 8.3 mm
Foldable Design No No
Available Colors
  • Black
  • Blue
  • White
  • Pink
  • Blue
  • Hacker Black
  • Nano Silver

Display

Screen Size 6 " 6.62 "
Resolution 1080 x 2520 1080 x 2400
Aspect Ratio 21:9 20:9
Screen-to-Body Ratio 80.3 % 87.4 %
Pixel Density 457 PPI 397 PPI
Refresh Rate N/A 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness N/A N/A

Hardware

Battery Capacity per Screen Area 125.00 mAh/in² 102.68 mAh/in²
Battery Density 51.77 mAh/cm³ 44.81 mAh/cm³
Battery Capacity 4500 mAh 4500 mAh
NFC Support Yes Yes
Chipset Qualcomm SM6350 Snapdragon 690 5G (8 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (2x2.0 GHz Kryo 560 Gold & 6x1.7 GHz Kryo 560 Silver) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Adreno 619 Adreno 660

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 11
Maximum OS Version 13 13

Comparison Summary

Sony Xperia 10 III vs OnePlus 9RT 5G: The Ultimate Comparison

1. Specifications Breakdown

Design & Build Quality

FeatureSony Xperia 10 IIIOnePlus 9RT 5GReal-World Implications
Dimensions154 × 68 × 8.3 mm162.2 × 74.6 × 8.3 mmXperia is more compact and pocket-friendly
Weight169g198.5gXperia noticeably lighter for one-handed use
Screen ProtectionGorilla Glass 6UnknownXperia offers better drop protection
Fingerprint SensorSide-mountedBasicXperia's placement is more intuitive

Display

FeatureSony Xperia 10 IIIOnePlus 9RT 5GReal-World Implications
Size6" OLED6.62" AMOLEDOnePlus better for media, Xperia more compact
Resolution1080x2520 (457 PPI)1080x2400 (397 PPI)Xperia sharper text, but difference minor
Refresh Rate60Hz120HzOnePlus much smoother scrolling/gaming

Performance

FeatureSony Xperia 10 IIIOnePlus 9RT 5GReal-World Implications
ChipsetSnapdragon 690 (8nm)Snapdragon 888 (5nm)OnePlus 3x faster (881k vs 275k Antutu)
RAM Options6GB8GB/12GBOnePlus better for heavy multitasking
Storage Options128GB128GB/256GBOnePlus offers more storage flexibility
GPUAdreno 619LAdreno 660OnePlus superior for gaming

Camera System

FeatureSony Xperia 10 IIIOnePlus 9RT 5GReal-World Implications
Main Camera12MP (f/1.8)50MP (f/1.8, IMX766)OnePlus captures more detail day & night
Telephoto8MP (f/2.4)NoneXperia has better zoom capability
Ultra-wide8MP (f/2.2)16MP (f/2.2)OnePlus better for landscapes
Selfie8MP (f/2.0)16MP (f/2.4)Trade-off: Xperia better in low light
Video Capabilities4K@30fps4K@60fps with OISOnePlus better for video stabilization

Battery & Charging

FeatureSony Xperia 10 IIIOnePlus 9RT 5GReal-World Implications
Capacity4500mAh4500mAhSimilar battery life expected
Charging Speed18W65WOnePlus charges 3x faster (0-100% ~30 mins)
Battery TechStandardDual-cell designOnePlus may handle heat better

2. Key Insights

Sony Xperia 10 III Strengths:

  • Superior ergonomics with lighter weight and more compact form factor
  • Sharper display with higher PPI (457 vs 397)
  • Telephoto lens for better zoom shots
  • Better screen protection (Gorilla Glass 6)
  • More intuitive side-mounted fingerprint sensor

OnePlus 9RT 5G Advantages:

  • Flagship-level performance (Snapdragon 888 vs mid-range 690)
  • 120Hz AMOLED display for smoother visuals
  • Faster charging (65W vs 18W)
  • Better main camera (50MP IMX766 sensor)
  • More RAM options (up to 12GB) for future-proofing

Trade-offs to Consider:

  • OnePlus sacrifices telephoto zoom for better main/ultra-wide cameras
  • Xperia's 60Hz display feels dated compared to 120Hz
  • Both lack expandable storage
  • OnePlus is significantly larger and heavier

3. User Profiles & Recommendations

Best For Sony Xperia 10 III:

  • Compact phone enthusiasts who prioritize one-handed use
  • Photographers who value optical zoom capability
  • Audiophiles who want Hi-Res Audio support
  • Budget-conscious users who find it at a discount

Best For OnePlus 9RT 5G:

  • Power users needing top-tier performance
  • Mobile gamers who want 120Hz smoothness
  • Content creators focusing on video recording
  • Night owls who benefit from Night Mode photography

Price-to-Value Ratio: The OnePlus offers better specs for the money, but the Xperia may appeal to those valuing specific features like compact size or telephoto zoom.

4. Buying Decision Framework

3 Key Questions:

  1. Do you prioritize performance/speed or comfort/portability?
  2. Is camera versatility (zoom vs low-light) more important than charging speed?
  3. Will you notice/appreciate the 120Hz display difference?

Scenario Recommendations:

  • Student on budget: Xperia if found at discount, otherwise OnePlus
  • Business traveler: OnePlus for faster charging during short layovers
  • Photography hobbyist: Xperia for telephoto, OnePlus for social media content
  • Mobile gamer: OnePlus without question

The Verdict: Which Would I Choose?

I would choose the OnePlus 9RT 5G, and here's why:

The performance gap is simply too significant to ignore - the Snapdragon 888 delivers desktop-class power that will remain relevant for years, while the 690 in the Xperia already feels dated. The 120Hz AMOLED display transforms everyday interactions, and the 65W charging is a game-changer when you're in a rush (I've experienced how frustrating slow charging can be when you need quick top-ups).

While I appreciate the Xperia's compact design and telephoto lens, the OnePlus offers a more balanced package for my usage. The camera system, while missing optical zoom, captures stunning 50MP shots and has better night photography capabilities. The extra RAM options also provide better future-proofing.

That said, if Sony offered this exact compact body with the OnePlus's internals, it would be my dream phone. For now, the performance and charging advantages of the OnePlus 9RT 5G make it the clear winner in this comparison for most users.

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.