Oppo Reno6 5G vs Motorola Moto G31 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 December 6, 2021
Release Year 2021 2021

Physical

Volume 85.92 cm³ 102.89 cm³
Screen Size to Weight Ratio 3.53 "/g 3.54 "/g
Weight 182 g 181 g
Height 156.8 mm 161.9 mm
Width 72.1 mm 73.9 mm
Thickness 7.6 mm 8.6 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Mineral Grey
  • Baby Blue

Display

Screen Size 6.43 " 6.4 "
Resolution 1080 x 2400 1080 x 2400
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 82.7 %
Pixel Density 409 PPI 411 PPI
Refresh Rate 90 Hz N/A
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 122.07 mAh/in²
Battery Density 50.05 mAh/cm³ 48.59 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) Mediatek MT6769Z Helio G85 (12 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G52 MC2

Connectivity

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

Software

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

Comparison Summary

Oppo Reno6 5G vs. Motorola Moto G31: A Practical Comparison

1. Specifications Breakdown

FeatureOppo Reno6 5GMotorola Moto G31Real-World Implications
Design & Build156.8 × 72.1 × 7.6 mm, 182g161.9 × 73.9 × 8.6 mm, 181gOppo is slimmer and slightly more compact, making it easier for one-handed use. Moto G31 is slightly bulkier but negligibly lighter.
Display6.43" AMOLED, 90Hz, 1100 nits6.4" AMOLED, 60Hz, brightness N/AOppo wins: Smoother scrolling (90Hz) and much better outdoor visibility (1100 nits). Moto G31's display is fine indoors but struggles in sunlight.
PerformanceDimensity 900 (6nm), 815K AnTuTuHelio G85 (12nm), 225K AnTuTuOppo is significantly faster—better for gaming, multitasking, and future-proofing. Moto G31 is good for basics but struggles with heavy apps.
Storage & RAM8/12GB RAM, 128/256GB (no SD)4GB RAM, 64/128GB (no SD)Oppo offers way more RAM and storage, better for power users. Moto G31 is limited—4GB RAM may lag with multiple apps.
Battery4500mAh, 65W fast charging5000mAh, 10W slow chargingMoto G31 has longer battery life, but Oppo charges in ~30 min vs. ~2+ hours—big advantage for quick top-ups.
Main Camera50MP (Sony IMX766, 1/1.56")50MP (Samsung JN1, 1/2.76")Oppo captures better low-light photos (larger sensor). Moto G31's camera is decent but no match in detail.
Ultrawide16MP (Sony IMX481)8MP (no listed sensor)Oppo’s ultrawide is sharper—better for landscapes. Moto’s is basic.
Selfie32MP (Sony IMX615)13MPOppo’s selfies are much more detailed—ideal for social media.
Video Recording4K@30fps, 1080p@60fps, OIS1080p@30fps, no OISOppo is far superior for video—smoother stabilization and 4K support.
AudioBasic audioDolby Atmos, dual micsMoto G31 has better speakers and mic clarity—good for calls and media.
ConnectivityWiFi 6, BT 5.2, 5GWiFi 5, BT 5.0, 4G LTEOppo offers better future-proofing with 5G and faster wireless standards.
SoftwareAndroid 11 (upgradable to 12)Android 11 (no confirmed update)Oppo has a clearer update path, though neither is cutting-edge.
SecurityBasic fingerprint sensorSide-mounted fingerprint sensorMoto G31’s side sensor is more ergonomic for unlocking.
DurabilityGorilla Glass 5Unknown protectionOppo’s screen is more scratch-resistant.

2. Key Insights & Competitive Advantages

Oppo Reno6 5G Strengths:

Faster performance (Dimensity 900 vs. Helio G85)
Better display (90Hz, 1100 nits brightness)
Superior cameras (larger sensors, 4K video, 32MP selfie)
Blazing-fast charging (65W vs. 10W)
More RAM & storage (up to 12GB/256GB)

Motorola Moto G31 Strengths:

Longer battery life (5000mAh vs. 4500mAh)
Better audio (Dolby Atmos, dual mics)
More ergonomic fingerprint sensor (side-mounted)
Cheaper (likely)—better for budget-focused buyers

Trade-offs to Consider:

🔹 Oppo charges faster, but Moto lasts longer—pick between quick refuels or endurance.
🔹 Oppo’s cameras are superior, but Moto’s audio is better—prioritize photography or media.
🔹 Oppo is more powerful, but Moto is cheaper—worth spending more for future-proofing?


3. User Profiles & Recommendations

Who Should Buy the Oppo Reno6 5G?

  • Power users who want smooth performance & multitasking.
  • Mobile photographers & videographers (better cameras, 4K, OIS).
  • Gamers (higher refresh rate, superior chipset).
  • People who hate slow charging (65W is a game-changer).

Who Should Buy the Motorola Moto G31?

  • Budget-conscious buyers who need decent specs at a lower price.
  • Media lovers (Dolby Atmos for better audio).
  • Long-battery seekers (5000mAh lasts all day).
  • Casual users who don’t need flagship-level performance.

4. Buying Decision Framework

Ask Yourself These 3 Questions:

  1. Do you prioritize speed & performance?Oppo Reno6 5G (better chip, 90Hz, 5G).
  2. Do you value battery life & audio over cameras?Moto G31.
  3. Are you willing to pay more for future-proofing?Oppo Reno6 5G (better long-term value).

Scenario-Based Recommendations:

  • "I game & take lots of photos"Oppo Reno6 5G
  • "I mostly watch videos & need battery life"Moto G31
  • "I want the best value-for-money phone" → If budget is tight → Moto G31; if you can stretch → Oppo Reno6 5G.

Final Verdict: Which One Would I Choose?

🔴 Winner: Oppo Reno6 5G

Why?

  • Performance gap is huge—Dimensity 900 is much faster.
  • 90Hz + 1100-nit display makes everyday use smoother & more visible outdoors.
  • 65W charging is a game-changer—no more overnight charging.
  • Cameras are in another league (larger sensor, 4K video, better selfies).

The Moto G31 is great for budget buyers who prioritize battery and audio, but the Oppo Reno6 5G is a far more capable, premium-feeling device—worth the extra cost 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.