Oppo Reno6 5G vs Xiaomi Poco C40 - Detailed Phone Comparison

Detailed Comparison

Specification

General

Launch Date June 11, 2021 June 17, 2022
Release Year 2021 2022

Physical

Volume 85.92 cm³ 119.52 cm³
Screen Size to Weight Ratio 3.53 "/g 3.29 "/g
Weight 182 g 204 g
Height 156.8 mm 169.6 mm
Width 72.1 mm 76.6 mm
Thickness 7.6 mm 9.2 mm
Foldable Design No No
Available Colors
  • Blue
  • Aurora
  • Purple
  • Stellar Black
  • Coral Green
  • Poco Yellow
  • Power Black

Display

Screen Size 6.43 " 6.71 "
Resolution 1080 x 2400 720 x 1650
Aspect Ratio 20:9 21:9
Screen-to-Body Ratio 88.3 % 82 %
Pixel Density 409 PPI 268 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 133.26 mAh/in²
Battery Density 50.05 mAh/cm³ 50.2 mAh/cm³
Battery Capacity 4300 mAh 6000 mAh
NFC Support Yes Yes
Chipset Mediatek Dimensity 900 (6 nm) JLQ JR510 (11 nm)
CPU Octa-core (2x2.4 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) Octa-core (4x2.0 GHz Cortex-A55 & 4x1.5 GHz Cortex-A55)
GPU Mali-G68 MC4 Mali-G57 MC1

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 Xiaomi Poco C40: A Practical Comparison

This comparison pits Oppo's premium mid-ranger against Xiaomi's budget offering, revealing two fundamentally different approaches to smartphone design. Below is a structured analysis to help you decide which device fits your needs.


1. Specifications Breakdown

Design & Build

FeatureOppo Reno6 5GXiaomi Poco C40Real-World Implications
Dimensions156.8 × 72.1 × 7.6 mm169.6 × 76.6 × 9.2 mmOppo is slimmer and lighter (182g vs 204g), making it easier to handle. Poco C40 is bulkier but may feel sturdier.
Screen ProtectionGorilla Glass 5Gorilla Glass 3Oppo has better drop and scratch resistance.
Fingerprint SensorUnder-displayRear-mountedOppo’s in-display sensor is more modern, while Poco’s rear sensor may be faster.

Display

FeatureOppo Reno6 5GXiaomi Poco C40Real-World Implications
TypeAMOLEDIPS LCDAMOLED offers deeper blacks, better contrast, and power efficiency. LCD on Poco C40 is less vibrant.
Size6.43"6.71"Poco C40 has a larger screen, but Oppo’s is sharper.
Resolution1080x2400 (409 PPI)720x1650 (268 PPI)Oppo’s higher PPI means crisper text/media; Poco’s lower-res display may look pixelated.
Refresh Rate90Hz60HzOppo’s 90Hz screen feels smoother in scrolling and animations.
BrightnessUp to 1100 nitsUnknown (likely lower)Oppo is far better in sunlight, making it usable outdoors.

Performance

FeatureOppo Reno6 5GXiaomi Poco C40Real-World Implications
ChipsetDimensity 900 (6nm)JLQ JR510 (11nm)Oppo has a vastly superior chipset, meaning faster app load times, smoother gaming, and better efficiency.
AnTuTu Score815,200128,944Oppo is 6x faster in benchmarks—expect much better performance in demanding apps.
RAM Options8GB / 12GB3GB / 4GBOppo is far better for multitasking; Poco may struggle with heavy use.
Storage128GB / 256GB (No SD)32GB / 64GB (No SD)Oppo’s storage is much more future-proof. Poco’s 32GB base model fills up quickly.

Camera

FeatureOppo Reno6 5GXiaomi Poco C40Real-World Implications
Main Camera50MP (Sony IMX766)13MP (No notable sensor)Oppo has far better detail, dynamic range, and low-light performance.
Ultrawide16MP✗ NoneOppo captures wider shots, useful for landscapes and group photos.
Telephoto13MP (2x zoom)✗ NoneOppo can zoom without losing quality; Poco relies on digital zoom.
Selfie32MP5MPOppo’s selfies are sharper and more detailed.
Video4K@30fps, 1080p@60fps1080p@30fps onlyOppo is better for vlogging with higher-quality video.

Battery & Charging

FeatureOppo Reno6 5GXiaomi Poco C40Real-World Implications
Capacity4500mAh6000mAhPoco lasts longer per charge, but Oppo charges faster.
Charging65W (0-100% in ~30 min)18W (slower charging)Oppo refuels in minutes, Poco takes much longer.
Extras✗ No reverse charging✔️ Reverse chargingPoco can charge other devices, but Oppo’s speed is more practical.

2. Key Insights

Oppo Reno6 5G Strengths

Premium performance (Dimensity 900, 12GB RAM, 256GB storage)
Better display (AMOLED, 90Hz, 1100 nits, 409 PPI)
Superior camera system (50MP main, ultrawide, telephoto, 32MP selfie)
Faster charging (65W vs 18W)

Xiaomi Poco C40 Strengths

Bigger battery (6000mAh vs 4500mAh)
Larger screen (6.71" vs 6.43")
Lower price (budget-friendly)

Trade-offs & Limitations

  • Poco C40 lags in performance, making it unsuitable for gaming/advanced multitasking.
  • Oppo Reno6 5G is more expensive but justifies the cost with premium features.
  • Poco C40’s display is lower resolution (720p), which may look pixelated to some users.

3. User Recommendations

Who Should Buy the Oppo Reno6 5G?

Power users needing strong performance
Photography enthusiasts (50MP + ultrawide + telephoto)
Media consumers who want AMOLED + 90Hz
Fast-charging lovers (65W is a game-changer)

Who Should Buy the Xiaomi Poco C40?

Budget-conscious buyers
Light users (basic apps, calls, texts)
Long battery life seekers (6000mAh is great for endurance)
Those who don’t care about cameras or performance


4. Buying Decision Framework

Ask Yourself:

  1. Do I need performance for gaming/multitasking?
    Yes? Oppo Reno6 5G. No? Consider Poco C40.
  2. Is camera quality important?
    Yes? Oppo’s 50MP + ultrawide + telephoto is superior.
  3. Do I prioritize battery life or fast charging?
    Battery? Poco C40. Fast charging? Oppo Reno6 5G.

Scenario-Based Recommendations:

  • Student on a budget? Poco C40 (but expect compromises).
  • Mobile gamer/content creator? Oppo Reno6 5G, no contest.
  • Light user who just texts & browses? Poco C40 is fine.

Final Verdict: Which Would I Choose?

I’d pick the Oppo Reno6 5G.

Why? The superior performance, display, camera, and fast charging make it a much better long-term investment. The Poco C40’s larger battery and cheaper price are appealing, but the mediocre chipset, low-res screen, and weak cameras hold it back for anything beyond basic use.

If you can afford the Reno6 5G, it’s the clear winner. If you’re on a tight budget and don’t care about performance/cameras, the Poco C40 works—but expect significant trade-offs.

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.