OnePlus 9 vs Oppo Reno12 - Detailed Phone Comparison

Detailed Comparison

Specification
OnePlus 9
OnePlus 9
Oneplus

General

Launch Date March 26, 2021 June 25, 2024
Release Year 2021 2024

Physical

Volume 103.29 cm³ 90.89 cm³
Screen Size to Weight Ratio 3.41 "/g 3.79 "/g
Weight 192 g 177 g
Height 160 mm 161.4 mm
Width 74.2 mm 74.1 mm
Thickness 8.7 mm 7.6 mm
Foldable Design No No
Available Colors
  • Winter Mist
  • Arctic Sky
  • Astral Black
  • Matte Brown
  • Sunset Pink
  • Astro Silver

Display

Screen Size 6.55 " 6.7 "
Resolution 1080 x 2400 1080 x 2412
Aspect Ratio 20:9 20:9
Screen-to-Body Ratio 87.2 % 90.3 %
Pixel Density 402 PPI 394 PPI
Refresh Rate 120 Hz 120 Hz
Typical Brightness N/A N/A
HBM Brightness N/A N/A
Peak Brightness 1100 nits 1200 nits

Hardware

Battery Capacity per Screen Area 104.89 mAh/in² 111.38 mAh/in²
Battery Density 43.57 mAh/cm³ 55.01 mAh/cm³
Battery Capacity 4500 mAh 5000 mAh
NFC Support Yes Yes
Chipset Qualcomm SM8350 Snapdragon 888 5G (5 nm) Mediatek Dimensity 7300 Energy (4 nm)
CPU Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
GPU Adreno 660 Mali-G615 MC2

Connectivity

USB Version 3.1 2.0
OTG Support 1 1
DisplayPort
DisplayPort Version N/A N/A
USB Features USB Type-C 3.1, OTG USB Type-C 2.0, OTG

Software

Operating System Android Android
Initial OS Version 11 14
Maximum OS Version 13 17

Comparison Summary

1. Specifications Comparison

FeatureOnePlus 9Oppo Reno12Practical Impact
Design
Dimensions160 × 74.2 × 8.7 mm161.4 × 74.1 × 7.6 mmOppo Reno12 is slightly taller and thinner, potentially feeling more modern and easier to handle. OnePlus 9 is thicker and will have more volume, perhaps less sleek feel.
Weight192g177gOppo Reno12 is lighter, making it more comfortable for extended use.
Display
Size6.55"6.7"Oppo Reno12 has a slightly larger screen, offering a more immersive viewing experience.
Resolution1080x24001080x2412Both have very similar sharpness, differences are negligible.
Pixel Density (PPI)402394Both have similar pixel density, meaning comparable sharpness.
TechnologyAMOLEDAMOLEDBoth offer vibrant colors and deep blacks typical of AMOLED technology.
Refresh Rate120Hz120HzBoth provide smooth scrolling and animations.
Brightness1100 nits1400 nitsOppo Reno12 is significantly better for outdoor visibility in bright sunlight.
Performance
ChipsetQualcomm Snapdragon 888 5G (5nm)Mediatek Dimensity 7300 Energy (4nm)OnePlus 9's chipset is older but provides higher raw power, resulting in faster app launches and smoother performance. Oppo Reno12's chipset is newer but slightly less powerful.
AnTuTu Score880,900702,140OnePlus 9 has better overall performance for demanding tasks.
GPUAdreno 660Mali-G615 MC2OnePlus 9's GPU is generally more powerful for gaming.
Battery
Capacity4500mAh5000mAhOppo Reno12 offers longer battery life due to the larger capacity.
Charging65W fast charging80W fast chargingOppo Reno12 charges faster, minimizing downtime.
Wireless Charging15W Wireless ChargingNoneOnePlus 9 has wireless charging capabilities.
Camera
Main Camera Res48MP, f/1.79, 1/1.4" sensor50MP, f/1.8, 1/2" sensorOnePlus 9 has a larger sensor and wider aperture, generally better low light. Oppo Reno12 has slightly higher resolution.
Selfie Camera Res16MP, f/2.432MP, f/2.0Oppo Reno12 offers higher resolution selfies and a wider aperture for better low-light selfies.
Wide Angle Lens50MP, f/2.2, 1/1.56" sensor8MP, f/2.2, 1/2.8" sensorOnePlus 9 has a significantly higher resolution and larger sensor for wide-angle shots.
Macro LensNone2MP, f/2.4, 1/5" sensorOppo Reno12 offers macro capability for close-up photography.
Black & White Lens2MP, f/2.4NoneOnePlus 9 has a dedicated B&W lens, which may enhance B&W photography.
VideoUp to 8K@30fps, EISUp to 4K@30fps, OIS/EISOnePlus 9 offers higher resolution video, while Oppo Reno12 offers optical image stabilization, resulting in smoother video recording.
Software
OSAndroid 11 (up to 13)Android 14 (up to 17)Oppo Reno12 offers a newer Android version with potentially more feature updates.
Connectivity
WiFiWi-Fi 6Wi-Fi 6Both offer modern Wi-Fi connectivity.
BluetoothBluetooth 5.2Bluetooth 5.4Oppo Reno12 has a newer Bluetooth version for slightly better performance.
GPSMore Satellite supportLess Satellite supportOnePlus 9 is likely to be more accurate with location services in some scenarios.
Storage
Internal Storage128/256 GB256/512 GBOppo Reno12 offers more storage options, better for users with a large media library.
RAM8/12 GB12/16 GBOppo Reno12 has more RAM, better for multitasking and demanding games.
Expandable StorageNoNoNeither phone allows for storage expansion.
Audio
QualityDolby Atmos, Noise cancellation mic, Stereo SpeakersBasic Audio featuresOnePlus 9 offers higher quality audio with advanced features.
Build Quality
Screen ProtectionGorilla Glass 5Gorilla Glass Victus 2Oppo Reno12 has superior screen protection.
Sensors
SensorsCompass, Accelerometer, Gyroscope, Proximity, FingerprintAccelerometer, Gyroscope, Proximity, FingerprintOnePlus 9 has a compass. Oppo Reno12 has gravity and geomagnetic sensors.

2. Key Differences Analysis

OnePlus 9 Advantages:

  • Higher Processing Power: The Snapdragon 888 offers superior raw performance for demanding applications and gaming.
  • Better Main Camera Sensor: The larger main sensor offers better low-light performance.
  • Superior Wide-Angle Camera: Significantly higher resolution and larger sensor for better wide-angle photos.
  • 8K Video Recording: Ability to record videos at a higher 8K resolution, suitable for professional-level content creation.
  • Wireless Charging: Convenient wireless charging capability.
  • Enhanced Audio: Includes Dolby Atmos, noise cancellation microphone, and stereo speakers for a superior audio experience
  • More Satellite Support: Superior location accuracy with GPS (L1+L5), BeiDou (B1), Galileo (E1+E5a), and BeiDou (B2)

Oppo Reno12 Advantages:

  • Newer and More Efficient Chipset: Though not as powerful, the 4nm Mediatek chip is more efficient.
  • Larger Battery & Faster Charging: Longer battery life and faster charging times for better endurance and convenience.
  • Brighter Display: Significantly brighter display for better outdoor visibility.
  • Higher Resolution Selfie Camera: Captures more detailed selfies.
  • Macro Lens: Dedicated macro lens allows for close-up photography.
  • Optical Image Stabilization (OIS): Leads to smoother video recording
  • Newer OS and Potential Updates: Comes with a newer Android version and is likely to receive more software updates.
  • More Storage and RAM: More storage and RAM variants for better multitasking and storage space.
  • Superior Screen Protection: Corning Gorilla Glass Victus 2 offers much higher drop and scratch protection compared to Gorilla Glass 5.
  • Newer Bluetooth Version: Bluetooth 5.4 provides slightly better performance than 5.2.

Significant Trade-offs:

  • OnePlus 9: Sacrifices battery life, screen brightness, camera versatility (macro lens), and software longevity for raw processing power and better camera quality (main and wide).
  • Oppo Reno12: Sacrifices some processing power and camera performance (main and wide) for better battery, screen, software support and overall smoothness and reliability.

3. User Profiles & Recommendations

Ideal User for OnePlus 9:

  • Power Users/Gamers: People who need raw performance for demanding apps and gaming.
  • Photography Enthusiasts: Individuals who prioritize high-quality main and wide-angle photos, even if macro and selfie quality is secondary.
  • Video Professionals: Those looking to record higher resolution video content in 8K.
  • Users of high-end Audio: People who value a higher end audio experience with spatial audio and noise cancellation.
  • Wireless Charging Enthusiasts: Users who want to take advantage of wireless charging.

Specific Use Cases for OnePlus 9:

  • Playing graphically intensive games at high frame rates.
  • Editing photos and videos on the go with smoother performance.
  • Capturing high-quality photos in a wide variety of scenarios, especially in low-light environments.
  • Recording professional-grade video content in 8K.
  • Using audio for consuming immersive content.

Ideal User for Oppo Reno12:

  • Everyday Users: People who need a reliable phone for daily tasks with good battery life and a bright display.
  • Selfie Lovers: Individuals who take a lot of selfies and want a higher resolution front-facing camera.
  • Casual Photographers: People who want a versatile camera system with a dedicated macro lens.
  • Users focused on long-term software support: Users that desire frequent feature and security updates from a more modern OS.

Specific Use Cases for Oppo Reno12:

  • Extended periods of use without needing to recharge.
  • Taking clear photos in bright sunlight.
  • Capturing close-up photos with a dedicated macro lens.
  • Enjoying a smooth and responsive experience while doing daily tasks.
  • Taking advantage of the latest software features and security patches for a longer period.

Price-to-Value:

  • The OnePlus 9 is an older phone and thus will likely be at a cheaper price than the newer Reno 12. Depending on the price differences, you may be getting an excellent value from the OnePlus 9 as it still holds up to many modern phones.
  • The Oppo Reno 12 will be at a higher price point, but offer better longer term usage due to software and hardware improvements.

4. Decision Framework

Key Questions for Buyers:

  1. Prioritize Performance or Battery Life? If you need the absolute best performance and can compromise on battery, the OnePlus 9 is better. If battery life is more important, the Reno12 is the clear choice.
  2. Value Camera Versatility or Main Image Quality? If you want the best main and wide camera quality and features, the OnePlus 9 wins. If macro photography is important, the Oppo Reno12 is better.
  3. Need the Latest Software and Future Updates? If having the latest Android version and more updates are a priority, the Oppo Reno12 is the better choice.

Scenario-Based Recommendations:

  • Heavy Gamer/Power User: Go for the OnePlus 9. It offers the best performance, but be prepared to charge more often.
  • Outdoor Enthusiast: Go for the Oppo Reno12. The brighter screen and longer battery life make it better for outdoor use.
  • Social Media Content Creator: Go for the Oppo Reno12. The higher resolution front facing camera and better image stabilization make this a better choice.
  • Budget Conscious: The OnePlus 9 may offer better value for the price, but this depends on the availability and discount of the two phones.
  • User Seeking Long-Term Reliability: The Oppo Reno12 will offer a longer period of usability as it comes with more modern specifications that will be viable for longer.

My Choice

If I were to choose between the two, I would pick the Oppo Reno12. While the OnePlus 9 offers a more powerful processor and better main camera, the Oppo Reno12's advantages are more compelling for my typical use case.

Here's why:

  • Better Battery Life: A longer battery life is crucial for me, as I often use my phone throughout the day and don't want to constantly worry about charging.
  • Brighter Display: I often use my phone outdoors, and the brighter screen on the Oppo Reno12 would be a significant advantage for outdoor visibility.
  • Smoother Video Recording: The Optical Image Stabilization (OIS) on the Oppo Reno12, along with its 4K capabilities, ensures smoother video recording without unwanted motion blur.
  • Newer Software: I value having a modern and supported operating system with timely updates, which the Oppo Reno12 offers with Android 14 and the potential for more updates to come.
  • More Storage and RAM: Having more storage and RAM will ensure that the phone runs smoothly and I won't run out of space for my photos and apps.

While the OnePlus 9 is indeed powerful, for daily use the Oppo Reno12's balanced approach, combining a smoother and more modern experience with superior screen and battery, makes it the more sensible choice for me. Furthermore, the modern protection, connectivity and better long term reliability outweigh the benefits of the raw performance of the OnePlus 9.

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.

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