Oppo Reno6 5G vs Sony Xperia 5 III - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 October 8, 2021
Release Year 2021 2021

Physical

Volume 85.92 cm³ 87.54 cm³
Screen Size to Weight Ratio 3.53 "/g 3.63 "/g
Weight 182 g 168 g
Height 156.8 mm 157 mm
Width 72.1 mm 68 mm
Thickness 7.6 mm 8.2 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Black
  • Green
  • Pink

Display

Screen Size 6.43 " 6.1 "
Resolution 1080 x 2400 1080 x 2520
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 88.3 % 81.4 %
Pixel Density 409 PPI 449 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 120.94 mAh/in²
Battery Density 50.05 mAh/cm³ 51.4 mAh/cm³
Battery Capacity 4300 mAh 4500 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Qualcomm SM8350 Snapdragon 888 5G (5 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55)
GPU Mali-G68 MC4 Adreno 660

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 11
Maximum OS Version 12 13

Comparison Summary

Oppo Reno6 5G vs. Sony Xperia 5 III: A Balanced Battle of Mid-Range vs. Premium

1. Specifications Breakdown

Design & Build Quality

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
Dimensions156.8 × 72.1 × 7.6 mm157 × 68 × 8.2 mmOppo is slightly wider (better for media), Sony is slimmer and lighter (168g vs. 182g).
Weight182g168gSony is easier to hold, especially for long periods.
DurabilityGorilla Glass 5Gorilla Glass 6Sony has better screen protection for drops/scratches.

Display

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
Size6.43" AMOLED6.1" OLEDOppo has a larger screen, Sony offers better one-handed use.
Resolution1080x2400 (409 PPI)1080x2520 (449 PPI)Sony has slightly sharper visuals (~9% more pixels).
Refresh Rate90Hz120HzSony feels smoother in scrolling/gaming (noticeable for fast-paced action).
Brightness1100 nits (peak)Not specified (likely ~800 nits)Oppo wins in bright sunlight; Sony may struggle outdoors.

Performance

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
ChipsetMediaTek Dimensity 900Snapdragon 888 5GSony is ~8% faster (better for gaming, multitasking).
RAM Options8GB/12GB8GBOppo’s 12GB variant is better for heavy users.
GPUMali-G68 MC4Adreno 660Sony's GPU is superior for graphics-heavy games.

Camera System

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
Main Sensor50MP (f/1.8)12MP (f/1.7)Oppo has higher resolution, Sony has better low-light performance.
Selfie Camera32MP (f/2.4)8MP (f/2.0)Oppo wins for selfies; Sony’s is basic.
Telephoto13MP (f/2.4)12MP (f/2.2)Similar, but Sony’s wider aperture helps in low light.
Ultrawide16MP (f/2.2)12MP (f/2.3)Oppo has higher resolution, Sony slightly better aperture.
Video Recording4K@30fps, 1080p@60fps4K@120fps, HDR, OISSony dominates for pro video with better stabilization & high FPS.

Battery & Charging

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
Capacity4500mAh4500mAhSimilar endurance, but software optimization matters.
Charging Speed65W (SuperVOOC 2.0)30WOppo charges twice as fast (0-100% in ~30 mins).
FeaturesBasicBypass Charging (for gaming)Sony avoids overheating while gaming + charging.

Audio & Extras

FeatureOppo Reno6 5GSony Xperia 5 IIIReal-World Implications
SpeakersSingle speakerStereo, Dolby Atmos, Hi-ResSony has far better sound (great for media).
SensorsStandard setBarometer, CompassSony is better for AR, navigation, and weather.
Software UpdatesAndroid 11 → 12Android 11 → 13Sony has longer update support.

2. Key Insights

Oppo Reno6 5G Strengths

Faster charging (65W) – Ideal for people who hate waiting around.
Better selfie & main camera resolution – Social media-ready photos.
Brighter display – Great for outdoor use.
More RAM (12GB option) – Better for multitasking.

Sony Xperia 5 III Strengths

Better performance (Snapdragon 888) – Smoother gaming & future-proofing.
Superior audio (stereo, Dolby Atmos) – Best for music & movies.
Pro-grade video features (4K@120fps, OIS) – Perfect for content creators.
Lighter & more compact – Easier to handle.

Trade-Offs

  • Oppo lacks advanced video features (no 4K@120fps, worse stabilization).
  • Sony has slower charging (30W vs. 65W) – A major downside for power users.
  • Oppo’s display is bigger but Sony’s is sharper & smoother.

3. User Profiles & Recommendations

Who Should Buy the Oppo Reno6 5G?

Power users who hate slow charging.
Social media fans (better selfies & ultrawide shots).
Budget-conscious buyers (typically cheaper than Sony).

Who Should Buy the Sony Xperia 5 III?

Gamers & performance seekers (Snapdragon 888, 120Hz).
Music & movie lovers (stereo speakers, Dolby Atmos).
Videographers (4K@120fps, OIS, HDR).
Those who prefer compact phones.


4. Buying Decision Framework

Ask Yourself:

  1. Do I need the fastest charging?Oppo.
  2. Do I care about gaming & media experience?Sony.
  3. Am I a photography enthusiast or a videography pro?
    • Photos: Oppo (higher resolution).
    • Videos: Sony (better stabilization & high FPS).

Final Verdict: Which Would I Choose?

I’d pick the Sony Xperia 5 III.

Why?

  • Better long-term performance (Snapdragon 888).
  • Pro-grade video & audio features (I value media quality).
  • More durable (Gorilla Glass 6).
  • Lighter & more ergonomic (easier one-handed use).

The Oppo Reno6 5G is great for fast charging and selfies, but the Sony Xperia 5 III is the more balanced premium choice for multimedia, gaming, and durability. If budget isn't a blocker, I’d go Sony.

But if fast charging & a big screen are priorities, the Oppo is a great mid-range alternative.


Which would YOU pick? Let me know in the comments! 🚀

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.