Oppo Reno6 5G vs Realme C31 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C31
Realme C31
Realme

General

Launch Date June 11, 2021 March 31, 2022
Release Year 2021 2022

Physical

Volume 85.92 cm³ 105.28 cm³
Screen Size to Weight Ratio 3.53 "/g 3.3 "/g
Weight 182 g 197 g
Height 156.8 mm 164.7 mm
Width 72.1 mm 76.1 mm
Thickness 7.6 mm 8.4 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Light Silver
  • Dark Green

Display

Screen Size 6.43 " 6.5 "
Resolution 1080 x 2400 720 x 1600
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 88.3 % 81.4 %
Pixel Density 409 PPI 270 PPI
Refresh Rate 90 Hz N/A
Typical Brightness 430 nits 400 nits
HBM Brightness 600 nits N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 118.34 mAh/in²
Battery Density 50.05 mAh/cm³ 47.49 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes No
Chipset Mediatek Dimensity 900 (6 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G57

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 microUSB 2.0

Software

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

Comparison Summary

Oppo Reno6 5G vs. Realme C31: A Battle of Mid-Range Versus Budget

The Oppo Reno6 5G and Realme C31 cater to very different segments of the smartphone market. One is a performance-driven mid-ranger with premium features, while the other is a budget-friendly device with practical compromises. Let’s break down how they compare in real-world use.


Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GRealme C31Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm164.7 × 76.1 × 8.4 mmReno6 is thinner and lighter (182g vs. 197g), making it easier to handle. C31 is bulkier but may feel more durable.
Screen ProtectionGorilla Glass 5UnknownReno6 is more drop-resistant, while C31’s protection is unclear—likely basic tempered glass.
Fingerprint ScannerBasic optical (under display)Side-mountedC31’s side-mounted sensor is faster and more reliable in daily use.

Display

FeatureOppo Reno6 5GRealme C31Real-World Implications
TypeAMOLEDIPS LCDReno6 has deeper blacks, better contrast, and better outdoor visibility (1100 nits vs. C31’s unspecified brightness).
Resolution1080x2400 (409 PPI)720x1600 (270 PPI)Reno6’s display is sharper and more detailed, great for media consumption. C31’s lower resolution is fine for basics but lacks crispness.
Refresh Rate90Hz60HzReno6 feels smoother in scrolling and animations, while C31 feels more sluggish.

Performance

FeatureOppo Reno6 5GRealme C31Real-World Implications
ChipsetMediaTek Dimensity 900 (6nm)Unisoc T612 (12nm)Reno6 is far more powerful, handling gaming and multitasking with ease. C31 is suited only for basic tasks (calls, social media).
RAM & Storage8/12GB RAM, 128/256GB3/4GB RAM, 32/64GBReno6 is future-proof for apps and games. C31 struggles with heavy apps and storage limitations.
Benchmark (AnTuTu)815,200224,223Reno6 is 3.6x faster—significant for performance users.

Camera

FeatureOppo Reno6 5GRealme C31Real-World Implications
Main Camera50MP (f/1.8, Sony IMX766)13MP (f/2.2)Reno6 offers far superior detail, better low-light performance, and richer colors. C31 is basic, with washed-out photos in dim light.
Ultrawide & Telephoto16MP (ultrawide), 13MP (telephoto)NoneReno6 is much more versatile—great for landscapes and zoom shots. C31 lacks flexibility.
Selfie32MP (f/2.4)5MP (f/2.2)Reno6 is far superior for selfies, while C31’s front camera is very low-res.
Video Recording4K@30fps, 1080p@60fps1080p@30fpsReno6 is much better for vlogging and high-quality videos, while C31 is limited.

Battery & Charging

FeatureOppo Reno6 5GRealme C31Real-World Implications
Capacity4500mAh5000mAhC31 lasts longer on a charge, but Reno6’s efficiency (AMOLED + 6nm chip) helps offset this.
Charging Speed65W fast charging10W slow chargingReno6 charges in under 40 mins, while C31 takes 2+ hours for a full charge.

Software & Connectivity

FeatureOppo Reno6 5GRealme C31Real-World Implications
Android VersionAndroid 11 (up to 12)Android 11 (no update)Reno6 has better long-term software support.
WiFi & BluetoothWiFi 6, BT 5.2WiFi 4, BT 5.0Reno6 offers faster, more stable connectivity—better for gaming & streaming.

Key Insights

Oppo Reno6 5G Wins with:

Superior performance (gaming, multitasking)
Better display (AMOLED, 90Hz, high resolution)
Far better cameras (4K video, superior main & selfie cams)
Faster charging (65W vs. 10W)
More premium design & build (Gorilla Glass 5, thinner)

Realme C31 Wins with:

Longer battery life (5000mAh)
Side-mounted fingerprint sensor (faster unlocks)
Lower price (better for budget buyers)
3.5mm headphone jack (missing in Reno6)

Trade-Offs:

  • Performance vs. Battery: Reno6 is faster, but C31 lasts longer.
  • Camera vs. Price: Reno6’s camera system is vastly superior, but you pay for it.
  • Display vs. Durability: Reno6 has a more fragile AMOLED screen; C31’s LCD is more durable but worse quality.

User Profiles & Recommendations

Get the Oppo Reno6 5G if you:

Want a premium mid-range experience (gaming, media, photography).
Value fast charging & smooth performance.
Need a sharper, more vibrant display.

Get the Realme C31 if you:

Are on a tight budget and don’t need high performance.
Prioritize battery life over speed.
Only need basic camera & display quality.


Buying Decision Framework

  1. What’s your budget?

    • Under $200? Realme C31.
    • $300+? Oppo Reno6 5G.
  2. What do you use your phone for?

    • Gaming, media, photography? Reno6.
    • Just calls, social media, light browsing? C31.
  3. How important is battery life vs. charging speed?

    • Need all-day endurance? C31.
    • Prefer fast top-ups? Reno6.

Final Verdict: Which Would I Choose?

I’d pick the Oppo Reno6 5G.

While the Realme C31 is a solid budget option, the Reno6 outperforms it in nearly every way—display, camera, performance, and charging speed. The Dimensity 900 chipset and AMOLED screen make it a much better long-term investment, especially if you care about gaming, photography, or media consumption.

The only major downside is battery life (5000mAh vs. 4500mAh), but 65W fast charging compensates—you can top up in minutes.

If you can afford the price difference, the Reno6 5G is the clear winner. The C31 only makes sense if budget is your top priority and you don’t need high-end features.

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.