Oppo Reno5 5G vs Realme C31 - Detailed Phone Comparison

Detailed Comparison

Specification
Realme C31
Realme C31
Realme

General

Launch Date January 7, 2021 March 31, 2022
Release Year 2021 2022

Physical

Volume 92.26 cm³ 105.28 cm³
Screen Size to Weight Ratio 3.74 "/g 3.3 "/g
Weight 172 g 197 g
Height 159.1 mm 164.7 mm
Width 73.4 mm 76.1 mm
Thickness 7.9 mm 8.4 mm
Foldable Design No No
Available Colors
  • Starry Black
  • Galactic Silver
  • Azure Blue
  • 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 85.5 % 81.4 %
Pixel Density 409 PPI 270 PPI
Refresh Rate 90 Hz N/A
Typical Brightness 430 nits 400 nits
HBM Brightness N/A N/A
Peak Brightness 750 nits N/A

Hardware

Battery Capacity per Screen Area 104.00 mAh/in² 118.34 mAh/in²
Battery Density 46.61 mAh/cm³ 47.49 mAh/cm³
Battery Capacity 4300 mAh 5000 mAh
NFC Support Yes No
Chipset Qualcomm SM7250 Snapdragon 765G 5G (7 nm) Unisoc Tiger T612 (12 nm)
CPU Octa-core (1x2.4 GHz Kryo 475 Prime & 1x2.2 GHz Kryo 475 Gold & 6x1.8 GHz Kryo 475 Silver) Octa-core (2x1.8 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55)
GPU Adreno 620 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

1. Specifications Comparison

FeatureOppo Reno5 5GRealme C31Practical Impact
Design
Dimensions159.1 x 73.4 x 7.9 mm, 172g164.7 x 76.1 x 8.4 mm, 197gOppo Reno5 5G is more compact and lighter, making it easier to handle and carry around. The C31 is noticeably larger and heavier.
Display
Size6.43"6.5"Negligible size difference; both offer similar viewing experiences.
Resolution1080 x 2400720 x 1600Oppo Reno5 5G provides a much sharper and clearer display, while C31 may look less detailed.
Pixel Density409 PPI270 PPIOppo Reno5 5G offers much better text and image clarity. Individual pixels are much less noticeable.
TechnologyAMOLEDIPS LCDOppo Reno5 5G has superior contrast, black levels, and color vibrancy. It is also more power-efficient with dark themes. C31 offers a more basic display.
Refresh Rate90Hz60HzOppo Reno5 5G provides a smoother experience when scrolling and in animations.
Brightness750 nits0 nitsOppo Reno5 5G is much more usable in bright outdoor conditions, while the Realme C31 will likely struggle under sunlight. (Brightness data missing for C31)
Performance
ChipsetSnapdragon 765G 5G (7nm)Unisoc Tiger T612 (12nm)Oppo Reno5 5G provides significantly better performance, enabling smoother multitasking, faster app loading, and better gaming experiences.
AnTuTu Score325,000224,223Oppo Reno5 5G offers snappier performance and better handling of demanding tasks.
GPUAdreno 620Mali-G57 MP1Oppo Reno5 5G provides better graphics rendering performance, important for gaming.
Battery
Capacity4300mAh5000mAhRealme C31 likely offers better battery life due to a larger capacity.
Charging65W Fast Charging10W Fast ChargingOppo Reno5 5G can charge its battery much faster, reducing downtime. The C31's charging is significantly slower.
FeaturesReverse charging, Dual-cell batteryNon-removableOppo Reno5 5G can charge other devices and has a more advanced battery structure.
Camera
Main Camera64MP, f/1.7, 1/1.7" Sony IMX68613MP, f/2.2Oppo Reno5 5G offers vastly superior image detail and better low-light performance.
Selfie Camera32MP, f/2.45MP, f/2.2Oppo Reno5 5G has much higher selfie resolution, while the Realme C31 has a slightly wider aperture, but lacks sensor details.
Macro Lens2MP, f/2.42MP, f/2.4Similar macro capabilities on both devices, although quality will differ.
Wide Angle8MP, f/2.2N/AOppo Reno5 5G has a wide-angle lens for more versatile photography.
Black & WhiteN/A2MP, f/2.8Realme C31 has a dedicated B&W sensor, adding creative options.
Video4K@30fps, 1080p@120fps, EIS, HDR1080p@30fps, EISOppo Reno5 5G offers higher quality and more versatile video recording options.
Camera Features4K Video, Ultra stable video, Night ModeBasic camera featuresOppo Reno5 5G offers many more advanced video and photo shooting modes/features.
Software
OSAndroid 11 (upgradable to 12)Android 11Oppo Reno5 5G is upgradeable to Android 12.
Connectivity
Wi-FiWi-Fi ac, dual-bandWi-Fi nOppo Reno5 5G has faster and more stable Wi-Fi capabilities.
Bluetooth5.1, aptX, LDAC, SBC5.0, EDROppo Reno5 5G supports higher quality audio codecs for Bluetooth devices.
GPSGPS, A-GPS, GLONASS, Beidou, QZSS, GalileoGPS, A-GPS, GLONASS, Beidou, GalileoOppo Reno5 5G offers slightly more accurate location services through QZSS.
Storage
Internal Storage128/256 GB32/64 GBOppo Reno5 5G offers significantly more storage for apps, media, and files.
RAM8/12 GB3/4 GBOppo Reno5 5G enables much smoother multitasking and overall system performance.
ExpandableNoNoNeither phone supports expandable storage.
Audio
Audio QualityDolby Atmos, Stereo SpeakersBasic AudioOppo Reno5 5G offers superior audio quality with Dolby Atmos and stereo speakers.
Security
Fingerprintbasic fingerprint sensorSide-mounted sensorRealme C31's fingerprint sensor is likely faster and more conveniently located.
Build Quality
Screen ProtectionCorning Gorilla Glass 3+UnknownOppo Reno5 5G has added screen protection. Realme C31's screen protection is unknown.
Sensors
SensorsFingerprint, Proximity, Accelerometer, Compass, GyroscopeProximity, Accelerometer, Compass, GyroscopeOppo Reno5 5G includes additional biometric sensors.

2. Key Differences Analysis

Oppo Reno5 5G Advantages:

  • Superior Display: AMOLED panel with higher resolution, pixel density, 90Hz refresh rate, and higher brightness, leading to a much more vibrant, smooth, and clearer display especially in outdoor conditions.
  • Significantly Better Performance: More powerful chipset, GPU, more RAM (8GB/12GB) results in smoother multitasking, faster app loading, and better gaming experience.
  • Better Camera System: Higher resolution main and selfie cameras, wider apertures, a dedicated wide-angle lens, and superior video recording capabilities offer much more versatile and better quality photos and videos.
  • Faster Charging: 65W fast charging is significantly faster than the 10W charging of the Realme C31.
  • Enhanced Audio: Dolby Atmos support and stereo speakers offer a much richer and more immersive audio experience.
  • Better Connectivity: Supports newer Wi-Fi standards, Bluetooth with aptX and LDAC for superior audio quality and slightly more accurate GPS.
  • Screen Protection: Corning Gorilla Glass 3+ provides better protection against scratches and minor impacts

Realme C31 Advantages:

  • Larger Battery: The 5000mAh battery may offer longer battery life (usage and software optimization affect the final outcome)
  • Side-mounted Fingerprint Sensor: A potentially more convenient fingerprint sensor location.
  • B&W Camera Lens: Dedicated sensor for black and white photos, giving slightly more versatility to the camera system.
  • Lower Price Point: Given its specifications, the Realme C31 will likely be more affordable than the Oppo Reno5 5G.

Significant Trade-offs:

  • Oppo Reno5 5G: Significantly more expensive due to its superior specs and features. It lacks expandable storage.
  • Realme C31: Lower display quality, much weaker performance, significantly inferior camera system, slower charging speed, and more basic audio features. It also lacks screen protection.

3. User Profiles & Recommendations

Oppo Reno5 5G:

  • Ideal Users:

    • Users who prioritize display quality and enjoy consuming media.
    • Gamers who need a smoother gaming experience.
    • Photography enthusiasts who want a versatile and high-quality camera system.
    • Power users who need fast charging and smooth multitasking.
    • Users who value enhanced audio and a more immersive sound experience.
  • Use Cases:

    • Streaming high-resolution videos and movies.
    • Playing demanding mobile games.
    • Capturing high-quality photos and videos in various conditions.
    • Daily multitasking with multiple apps running simultaneously.
    • Enjoying immersive audio experiences with or without headphones.
    • Users who frequently take photos/videos on their phones for socials.

Realme C31:

  • Ideal Users:

    • Budget-conscious users who need a basic smartphone for everyday use.
    • Users who prioritize battery life over performance.
    • Users who primarily use their phones for calls, texts, and basic social media browsing.
  • Use Cases:

    • Basic communication (calls, texts, emails).
    • Simple social media browsing (Facebook, Instagram).
    • Basic web browsing and light app use.
    • Users who prefer a longer battery life and are not demanding in terms of performance.
    • A backup phone or for those who have minimal needs from a smartphone.

4. Decision Framework

Key Questions for Buyers:

  1. Budget: How much are you willing to spend on a smartphone?
  2. Primary Use Case: What will you primarily use your phone for? (Gaming, photography, media consumption, basic communication)
  3. Priorities: What are your priorities? (Display quality, performance, camera quality, battery life, features)

Scenario-Based Recommendations:

  • Scenario 1 (Budget-Conscious): If you are on a tight budget and need a basic phone for everyday tasks and battery life is key, the Realme C31 is the more logical choice.
  • Scenario 2 (Performance & Media): If you prioritize smooth performance, a high-quality display for media consumption, and a better camera, the Oppo Reno5 5G is the better choice, despite the higher cost.
  • Scenario 3 (Photography): If you value a versatile camera system and video recording quality, the Oppo Reno5 5G is the clear winner due to its superior camera hardware and software.
  • Scenario 4 (Balanced Use): If you seek a balanced device capable of handling basic tasks while providing a better visual experience and smoother operation, the Oppo Reno5 5G is preferable given the overall upgrade it brings.

My Choice

If I were choosing between these two phones, I would choose the Oppo Reno5 5G. While the Realme C31 has a larger battery, the Oppo Reno5 5G offers a significantly superior experience across almost every other important metric. The difference in display quality, performance, and camera capabilities is so substantial that it justifies the higher price. I prioritize having a device with a vibrant display, smooth operation, and a capable camera system, which the Oppo Reno5 5G provides. The faster charging speed is a big plus. Although the lack of expandable storage is a drawback, I could manage with the 128GB or 256GB options.

Emily Harper
Emily Harper

Technology Insights Specialist

Dedicated technology writer specializing in mobile device analysis and technology communication. Expert at translating complex smartphone features into clear, actionable insights for diverse audiences.

Key Strengths:

  • Mobile technology analysis
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Bridging technical complexity with engaging, accessible narratives.