Oppo Reno6 5G vs Asus Zenfone 9 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 September 15, 2022
Release Year 2021 2022

Physical

Volume 85.92 cm³ 90.79 cm³
Screen Size to Weight Ratio 3.53 "/g 3.49 "/g
Weight 182 g 169 g
Height 156.8 mm 146.5 mm
Width 72.1 mm 68.1 mm
Thickness 7.6 mm 9.1 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Midnight Black
  • Starry Blue
  • Moonlight White
  • Sunset Red

Display

Screen Size 6.43 " 5.9 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 84.2 %
Pixel Density 409 PPI 445 PPI
Refresh Rate 90 Hz 120 Hz
Typical Brightness 430 nits N/A
HBM Brightness 600 nits N/A
Peak Brightness 750 nits 1100 nits

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 123.53 mAh/in²
Battery Density 50.05 mAh/cm³ 47.36 mAh/cm³
Battery Capacity 4300 mAh 4300 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510)
GPU Mali-G68 MC4 Adreno 730

Connectivity

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

Software

Operating System Android Android
Initial OS Version 11 12
Maximum OS Version 12 14

Comparison Summary

Oppo Reno6 5G vs. Asus Zenfone 9: In-Depth Comparison

1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm146.5 × 68.1 × 9.1 mmZenfone 9 is more compact (easier one-handed use), while the Reno6 is slimmer.
Weight182g169gZenfone 9 is lighter, making it more comfortable for daily carry.
Screen ProtectionGorilla Glass 5Gorilla Glass VictusZenfone 9 has better drop resistance against cracks.

Display

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
Size6.43" AMOLED5.9" AMOLEDReno6 has a larger screen (better media viewing), Zenfone is more pocketable.
Refresh Rate90Hz120HzZenfone 9 feels smoother in scrolling/gaming.
Brightness & PPI1100 nits, 409 PPI1100 nits, 445 PPISimilar brightness, Zenfone has slightly sharper text.

Performance & Software

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
ChipsetDimensity 900 (6nm)Snapdragon 8+ Gen 1 (4nm)Zenfone 9 is significantly faster (50%+ better benchmark scores).
RAM Options8GB / 12GB8GB / 16GBZenfone 9 is better for heavy multitasking & future-proofing.
OS & UpdatesAndroid 11 (up to 12)Android 12 (up to 14)Zenfone 9 has longer software support.

Camera

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
Main Camera (50MP)Sony IMX766 (f/1.8)Sony IMX766 (f/1.8)Similar daylight performance.
Ultrawide/Macro16MP ultrawide + 2MP macro12MP gimbal-stabilized UWZenfone’s UW is better stabilized; Reno6 has better macro.
Selfie Camera32MP (better resolution)12MP (larger pixels)Reno6 is better for selfies; Zenfone does better in low light.
Video Recording4K@60fps8K@24fps, 4K@120fpsZenfone is superior for video with gimbal EIS.

Battery & Charging

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
Battery Capacity4500mAh4300mAhReno6 has slightly longer endurance.
Charging Speed65W (faster charging)30W (slower)Reno6 refuels much quicker.

Extras

FeatureOppo Reno6 5GAsus Zenfone 9Real-World Implications
AudioBasic setupStereo speakers, Hi-ResZenfone 9 has better sound for media.
SecurityBasic fingerprint sensorSide-mounted fingerprintZenfone’s sensor is faster & more ergonomic.
StorageNo expandable storageNo expandable storageSame limitation on both.

2. Key Insights

Oppo Reno6 5G Strengths

Bigger display (better for media consumption)
Faster charging (65W vs. 30W)
Superior selfie camera (32MP vs. 12MP)
More versatile rear cameras (telephoto + ultrawide)

Asus Zenfone 9 Strengths

More powerful chipset (Snapdragon 8+ Gen 1)
Compact & ergonomic design (easier one-handed use)
Better display (120Hz, Gorilla Glass Victus)
Superior video & stabilization (8K, gimbal EIS)
Longer software support (up to Android 14)

Trade-offs

  • Reno6 5G sacrifices performance for battery & cameras.
  • Zenfone 9 trades battery life and charging speed for power & compactness.

3. User Profiles & Recommendations

Who Should Buy the Oppo Reno6 5G?

Social media & selfie lovers (32MP front camera)
People who prioritize fast charging (65W refill)
Users who prefer bigger screens

Who Should Buy the Asus Zenfone 9?

Performance enthusiasts (Snapdragon 8+ Gen 1)
Compact phone lovers (5.9" AMOLED)
Mobile gamers & content creators (120Hz, 8K video)


4. Buying Decision Framework

Ask Yourself:

  1. Do I prioritize performance or battery life?
    • Performance → Zenfone 9
    • Battery → Reno6 5G
  2. Do I prefer a compact phone or a bigger display?
    • Compact → Zenfone 9
    • Big screen → Reno6 5G
  3. Do I care about camera versatility or video capabilities?
    • Selfies & zoom → Reno6 5G
    • Stabilized video → Zenfone 9

Final Verdict: Which Would I Choose?

I’d pick the Asus Zenfone 9.

Why?

  • Performance is king – The Snapdragon 8+ Gen 1 is vastly superior for gaming & multitasking.
  • Better ergonomics – Compact size + lightweight makes it more comfortable.
  • Future-proof software – Longer update support means better longevity.
  • Superior video & stabilization – The gimbal EIS is a game-changer for content creators.

While the Oppo Reno6 5G has a better selfie camera and faster charging, the Zenfone 9’s power, compactness, and premium build make it the better long-term choice for most users.

🔹 Best for power users & compact phone lovers → Asus Zenfone 9
🔹 Best for selfie lovers & fast charging → Oppo Reno6 5G

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.