1. Specifications Comparison
| Feature | OnePlus 9 Pro | Oppo A77 | Practical Impact |
|---|---|---|---|
| Design | |||
| Dimensions | 163.2 × 73.6 × 8.7 mm | 163.8 × 75.1 × 8 mm | OnePlus 9 Pro slightly more compact in width & thickness but a larger overall volume; A77 is slightly wider and thinner. |
| Weight | 197g | 190g | Oppo A77 feels slightly lighter in hand, potentially more comfortable for prolonged use. |
| Display | |||
| Size | 6.7" | 6.56" | OnePlus 9 Pro offers a slightly larger screen, better for media consumption & gaming. |
| Resolution | 1440x3216 | 720x1612 | OnePlus 9 Pro display is significantly sharper, with much more detail in text and images. Oppo A77 will look less crisp |
| Pixel Density (PPI) | 525 | 269 | OnePlus 9 Pro will have much sharper and clearer visuals than the Oppo A77. |
| Technology | IPS LCD | Oppo A77 features IPS LCD display, offering good color accuracy | |
| Refresh Rate | 120Hz | 90Hz | OnePlus 9 Pro screen is smoother in daily use with 120Hz, especially noticeable during scrolling & gaming. |
| Brightness | 1300 nits | 0 nits | OnePlus 9 Pro is much more visible outdoors under bright sunlight. The lack of data for A77 makes it impossible to make a valid comparison. |
| Performance | |||
| Chipset | Qualcomm Snapdragon 888 5G (5 nm) | Mediatek Dimensity 810 (6 nm) | OnePlus 9 Pro has a much more powerful processor, ensuring smooth performance in demanding tasks. |
| AnTuTu Score | 877,600 | 42,000 | OnePlus 9 Pro offers vastly superior performance (20x faster) in apps, multitasking, and gaming. |
| GPU | Adreno 660 | Mali-G57 MC2 | OnePlus 9 Pro offers significantly higher graphical performance, better for gaming and GPU-intensive tasks. |
| Battery | |||
| Capacity | 4500mAh | 3200mAh | OnePlus 9 Pro has a larger battery, potentially offering longer battery life. |
| Charging | 65W fast charging | No fast charging information | OnePlus 9 Pro charges much faster. |
| Features | Reverse charging, Wireless charging 50W, Reverse wireless charging | Non-removable | OnePlus 9 Pro offers advanced charging capabilities including wireless and reverse charging for added convenience. |
| Camera | |||
| Standard Camera | 48MP, f/1.8, 1/1.43" Sony IMX789 | 13MP, f/2.2, no sensor information | OnePlus 9 Pro captures much more detailed photos with higher resolution and better low-light performance with its wider aperture and larger sensor. |
| Selfie Camera | 16MP, f/2.4, 1/3.13" Sony IMX471 | 16MP, f/2.0, no sensor information | Oppo A77 has a wider aperture (f/2.0), which should help in low light conditions. |
| Telephoto Lens | 8MP, f/2.4, 1/4.4" Omnivision OV08A10 | None | OnePlus 9 Pro offers optical zoom capabilities, missing from Oppo A77. |
| Wide Angle Lens | 50MP, f/2.2, 1/1.56" Sony IMX766 | None | OnePlus 9 Pro has a dedicated ultra-wide lens, offering more shooting versatility. |
| Black & White Lens | 2MP, f/2.4 | None | OnePlus 9 Pro can take dedicated Black and White photos |
| Video | 8K@30fps, 4K@120fps w/HDR, EIS | 1080p@30fps | OnePlus 9 Pro captures much higher quality videos, offering better video stabilization and slow-motion options. |
| DxOMark | Mobile: 122, Photo: 124, Video: 118 | Not Tested | OnePlus 9 Pro is a significantly better performer in all camera categories. |
| Features | 4K/8K Video, OIS, Optical Zoom, RAW, Night Mode etc. | Digital zoom, Digital Image Stabilization etc. | OnePlus 9 Pro has a vastly superior camera system with far more advanced features and flexibility for creative photography. |
| Software | |||
| OS | Android 11, upgradable to 14 | Android 12, upgradable to 14 | Oppo A77 ships with a newer Android version, but both are upgradable to 14. |
| Connectivity | |||
| WiFi | Wi-Fi 6 (802.11ax), Dual-band, MIMO, Direct | 802.11n, Dual-band | OnePlus 9 Pro has faster and more reliable Wi-Fi connectivity. |
| Bluetooth | 5.2, LE, APT-x, LDAC, SBC, AAC | 4.1, A2DP | OnePlus 9 Pro offers more reliable Bluetooth connection and better audio codec options. |
| GPS | GPS, A-GPS, GLONASS, Beidou, Galileo (L1+L5) | GPS, A-GPS, GLONASS | OnePlus 9 Pro has more precise GPS capabilities with better accuracy. |
| SIM | Dual SIM Dual Standby | Dual SIM Dual Standby | Both support dual SIM, but no other differences. |
| Storage | |||
| Internal | 128/256GB | 32/64GB | OnePlus 9 Pro has significantly more storage for photos, videos, and apps. |
| RAM | 8/12GB | 3/4GB | OnePlus 9 Pro has much more RAM, leading to smoother multitasking and better performance. |
| Expandable | No | No | Neither phone has expandable storage. |
| Audio | |||
| Quality | Dolby Atmos, Stereo speakers, Noise cancellation microphone | Basic audio features | OnePlus 9 Pro offers far superior audio quality with better voice capture, spatial audio and greater immersion |
| Security | |||
| Features | Basic fingerprint sensor | Side-mounted fingerprint sensor | Oppo A77 features a more convenient side-mounted fingerprint sensor. |
| Build Quality | |||
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass 5 | Both offer the same level of screen protection. |
| Sensors | |||
| Sensors | Fingerprint, Proximity, Accelerometer, Compass, Gyroscope | Fingerprint, Proximity, Accelerometer, Compass | OnePlus 9 Pro includes a gyroscope, offering advanced motion sensing for apps and games. |
2. Key Differences Analysis
OnePlus 9 Pro Advantages:
- Superior Performance: Much faster processor, GPU, and RAM, offering smoother app loading, multitasking, and gaming experience.
- Higher Quality Display: Higher resolution, pixel density, refresh rate, and brightness, resulting in much sharper, smoother, and more visible visuals especially under sunlight.
- Advanced Camera System: Multiple lenses, higher resolution sensors, OIS, 8K video, and more advanced photo & video features, offering better photos, video capabilities and versatile shooting options.
- Faster Charging & Wireless Charging: 65W fast charging and 50W wireless charging, leading to much faster charging speeds and more convenient charging options.
- Enhanced Connectivity: Faster Wi-Fi, newer Bluetooth version, and more accurate GPS.
- Superior Audio: Dolby Atmos, stereo speakers, and noise cancellation.
- Larger Storage: Comes with significantly more internal storage to store files, games and apps.
Oppo A77 Advantages:
- Newer Android OS at launch: Shipped with a slightly newer version of Android out of the box, but both can be upgraded to Android 14
- Lighter Design: Weighs 7g less than the OnePlus 9 Pro.
- Side-Mounted Fingerprint Sensor: More convenient access for some users.
- Lower Price: Typically available at a lower price point.
Trade-offs:
- OnePlus 9 Pro: The trade-off is the high price and the slightly bulkier build but the higher performance, screen, and camera might be worth it.
- Oppo A77: The trade-off is significantly lower performance, lower resolution screen, limited camera capabilities, and a smaller battery for a lower price.
3. User Profiles & Recommendations
OnePlus 9 Pro:
- Ideal Users: Tech enthusiasts, gamers, photography lovers, users who prioritize performance, display quality, and camera capabilities.
- Use Cases:
- Playing graphically intensive games
- Professional-level photography and videography
- Demanding multitasking and productivity
- Enjoying high-resolution content and media consumption
- Users who need fast and reliable charging and enhanced connectivity.
Oppo A77:
- Ideal Users: Budget-conscious users, casual smartphone users, those who value simplicity, basic functions, and a lightweight design, users who do not need high performance and only do light tasks.
- Use Cases:
- Everyday communication and social media
- Web browsing and casual gaming
- Light app usage and basic productivity
- Users who prefer a more affordable phone.
Price-to-Value Ratio:
- OnePlus 9 Pro: Offers a high price-to-value ratio if you need top-tier performance and features.
- Oppo A77: Provides a more budget-friendly option if you do not need high-end performance.
4. Decision Framework
Key Questions to Consider:
- What is your budget? Oppo A77 is significantly cheaper than the OnePlus 9 Pro.
- How important are performance and display quality? If you need a smooth, fast, and sharp experience, the OnePlus 9 Pro is the only option.
- How important is the camera? If you take a lot of photos and videos, the OnePlus 9 Pro offers much better quality and versatility.
Scenario-Based Recommendations:
- Scenario 1 (Budget-Conscious): If you are on a tight budget and need a basic smartphone for everyday use, the Oppo A77 is a better option.
- Scenario 2 (Performance-Focused): If you want the best performance for gaming, demanding apps, and multitasking, the OnePlus 9 Pro is the clear choice.
- Scenario 3 (Photography Enthusiast): If you want a versatile and high-quality camera, the OnePlus 9 Pro is significantly better than the Oppo A77.
- Scenario 4 (Media Consumer): If you love watching high resolution videos, the OnePlus 9 Pro is a much better option with a better screen.
My Choice
I would choose the OnePlus 9 Pro. While it is significantly more expensive, the massive differences in display quality, performance, camera capabilities and overall user experience are too significant to ignore. The OnePlus 9 Pro offers a vastly superior experience in almost every single metric, and this increase in experience would outweigh the extra costs. For me, having a smoother experience when doing any kind of tasks is a must, and the OnePlus 9 Pro would make me more productive and enable better entertainment.
