Smartphone Comparison: OnePlus 9 vs. Oppo A55
1. Specifications Comparison
Feature | OnePlus 9 | Oppo A55 | Practical Impact |
---|---|---|---|
Design | |||
Dimensions | 160 × 74.2 × 8.7 mm | 163.6 × 75.7 × 8.4 mm | Oppo A55 is slightly taller and wider, OnePlus 9 is marginally thicker. Differences are minor and unlikely to be noticeable. |
Weight | 192g | 193g | Both phones are virtually identical in weight. |
Display | |||
Size | 6.55" | 6.51" | Negligible size difference, both offer a similar viewing experience. |
Resolution | 1080x2400 | 720x1600 | OnePlus 9 provides a significantly sharper and more detailed display. |
PPI | 402 | 270 | OnePlus 9 has much higher pixel density resulting in text and images that look noticeably clearer. |
Technology | AMOLED | IPS LCD | OnePlus 9 offers superior contrast, deeper blacks, and more vibrant colors, enhancing the viewing experience, especially for dark content or in bright sunlight. |
Refresh Rate | 120Hz | 60Hz | OnePlus 9 displays much smoother animations, scrolling and gaming feel more fluid. |
Brightness | 1100 nits | 0 nits (Not Specified) | OnePlus 9 will be significantly more visible in direct sunlight. The Oppo A55's brightness is not specified, which could be a major disadvantage in outdoor visibility |
Performance | |||
Chipset | Qualcomm Snapdragon 888 5G (5 nm) | Mediatek Helio G35 (12 nm) | OnePlus 9 offers vastly superior processing power, leading to snappier apps, smoother multitasking, and better gaming performance. |
AnTuTu Score | 880,900 | 379,800 | OnePlus 9 is significantly faster in benchmarks, indicating a much more powerful user experience. |
GPU | Adreno 660 | PowerVR GE8320 | OnePlus 9 provides significantly better graphics performance suitable for gaming and demanding applications. |
Camera | |||
Main Camera | 48MP, f/1.79, 1/1.4" Sony IMX689 | 13MP, f/2.2 | OnePlus 9 has a much higher resolution and a wider aperture, leading to better low-light performance and detail. |
Selfie Camera | 16MP, f/2.4, 1/3.13" Sony IMX471 | 8MP, f/2.0 | OnePlus 9 provides higher resolution selfies, while the Oppo A55 has a wider aperture for potentially better low-light selfies. |
Wide Angle Lens | 50MP, f/2.2, 1/1.56" Sony IMX766 | None | OnePlus 9 offers a versatile wide angle camera for capturing more expansive scenes. |
Portrait Camera (Depth) | None | 2MP, f/2.4 | Oppo A55 includes a dedicated depth sensor, potentially improving portrait mode with a more pronounced bokeh effect |
Macro Camera | None | 2MP, f/2.4 | Oppo A55 offers a macro lens for taking close-up pictures. |
Black & White Camera | 2MP, f/2.4 | None | OnePlus 9 has an additional black and white sensor which may enhance monochrome photography |
Video | Up to 8K@30fps | Up to 1080p@30fps | OnePlus 9 records much higher quality video (including 8K), suitable for professional use. |
Features | 8K Video, RAW 12 bit, OIS, more | Basic features | OnePlus 9 has a wider range of features for photography and videography |
Battery | |||
Capacity | 4500mAh | 5000mAh | Oppo A55 has a slightly larger battery, potentially offering longer battery life, however this can be offset by other factors such as display technology. |
Charging | 65W Fast Charging + 15W Wireless | 10W Fast Charging | OnePlus 9 charges much faster, and offers wireless charging. |
Software | |||
OS | Android 11, upgradable to 13 | Android 11 | OnePlus 9 will get two major os updates, Oppo A55 will not receive further updates |
Connectivity | |||
WiFi | WiFi 6 | WiFi 5 | OnePlus 9 supports a newer Wi-Fi standard (Wi-Fi 6), providing better performance. |
Bluetooth | 5.2 | 5.1 | OnePlus 9 has a slightly newer Bluetooth standard. |
GPS | Multiple systems | Multiple systems | OnePlus 9 supports more satellite systems for better accuracy and faster location locking. |
Storage | |||
Internal | 128GB/256GB | 128GB | OnePlus 9 offers a larger storage option, double the base capacity of Oppo A55. |
RAM | 8GB/12GB | 6GB/8GB | OnePlus 9 offers more RAM, supporting heavy multitasking. |
Expandable Storage | No | No | Neither phone has expandable storage |
Audio | |||
Quality | Stereo speakers, Dolby Atmos | Basic | OnePlus 9 provides superior audio with stereo speakers, Dolby Atmos support, and noise-canceling microphone. |
Security | |||
Fingerprint Sensor | Basic | Side-mounted | Oppo A55 has a more convenient side-mounted fingerprint sensor. |
Build Quality | |||
Screen Protection | Gorilla Glass 5 | Unknown | OnePlus 9 offers better screen protection with Gorilla Glass. |
Sensors | |||
Accelerometer, Compass, Gyroscope, Proximity, Fingerprint | Accelerometer, Gyroscope, Proximity, Fingerprint, Gravity, Geomagnetic | OnePlus 9 has a compass sensor. Oppo A55 has gravity and geomagnetic sensors |
2. Key Differences Analysis
OnePlus 9 Advantages:
- Significantly Superior Display: AMOLED, higher resolution, 120Hz refresh rate, and higher brightness leading to much better viewing experiences, especially for media and gaming.
- Vastly Better Performance: A flagship-level Snapdragon 888 chipset offers significantly faster app loading, smoother multitasking, and high-end gaming capabilities.
- Superior Camera System: Higher resolution main and wide-angle cameras, better low-light performance, 8K video recording, and additional features like 12-bit RAW and OIS (Optical Image Stabilization).
- Much Faster Charging: 65W fast charging and 15W wireless charging offer a big advantage in terms of convenience and speed.
- Enhanced Audio: Stereo speakers and Dolby Atmos provide a more immersive audio experience.
- Future proof: Two major Android OS updates
Practical Implications: The OnePlus 9 is a high-performance device suitable for demanding users who need a fast, responsive, and feature-rich smartphone with a great display and camera.
Oppo A55 Advantages:
- Slightly Larger Battery: A 5000mAh battery provides slightly more power for potentially better battery life.
- Side Mounted Fingerprint Scanner: Arguably more convenient than the in-display scanner on the OnePlus 9.
- Dedicated Portrait and Macro Lenses: Offers more options for creative photography, while not necessarily being higher quality.
- Lower Cost: The Oppo A55 is typically sold at a lower price point, making it more budget-friendly.
Practical Implications: The Oppo A55 is suitable for budget-conscious users who prioritize basic functionality, longer battery life, and are content with a more basic performance.
Trade-offs:
- OnePlus 9: Higher cost, less battery capacity (though faster charging mitigates this), lacks dedicated macro/depth sensors.
- Oppo A55: Significantly lower performance, lower resolution display, basic camera system, very slow charging, and missing essential display and connectivity features.
3. User Profiles & Recommendations
OnePlus 9 Ideal User:
- Performance Enthusiasts: Users who play demanding games, multitask heavily, and require a fast and responsive device.
- Media Consumers: Users who watch a lot of videos, movies, and streaming content, and prioritize a vibrant display with excellent viewing angles.
- Photography and Videography Enthusiasts: Users who want a versatile camera system with the ability to shoot high-quality photos and videos in various scenarios.
- Tech Enthusiasts: Users who appreciate the latest technologies and features, such as a 120Hz refresh rate, fast charging, and high-end performance.
Oppo A55 Ideal User:
- Budget-Conscious Buyers: Users who need a functional smartphone at a low price, without many frills.
- Casual Users: Users who primarily use their phones for calling, texting, browsing social media, and basic tasks.
- Battery Life Prioritizers: Users who need a phone that can last a full day without needing to be charged, and are not concerned about charge speed.
- First Time Smartphone Buyers: Users who do not have any reference for quality, and may not need the premium features of the OnePlus 9.
Specific Use Cases:
- OnePlus 9:
- High-end gaming
- Video editing and creation
- Professional photography
- Watching HDR content
- Heavy multitasking
- Oppo A55:
- Basic social media use
- Web browsing
- Making calls/texts
- Casual photography
- Long battery life
Price-to-Value Ratio:
- OnePlus 9: Offers a high performance to price ratio for users that need high-end features.
- Oppo A55: Offers a strong value proposition for those on a strict budget.
4. Decision Framework
Key Questions for Buyers:
- What is your budget? The price difference between these phones is considerable.
- How important is performance to you? Are you a heavy gamer or multi-tasker, or do you only use your phone for basic tasks?
- What are your primary camera needs? Do you need high-quality photos and videos, or are basic snapshots sufficient?
Scenario-Based Recommendations:
- Scenario 1: High performance and quality is a priority, budget isn't a major issue:
- Recommendation: OnePlus 9. Its superior display, performance, camera, and charging capabilities provide a much better experience overall, especially for high demand users.
- Scenario 2: Budget is the main concern, basic functionality is all that is needed:
- Recommendation: Oppo A55. It's a budget-friendly option that provides basic functionality. However, be aware that it severely underperforms compared to the OnePlus 9.
- Scenario 3: Need a reliable phone for daily use, but still want some premium features:
- Recommendation: OnePlus 9. While a more expensive option, it provides a much better user experience compared to the Oppo A55 in terms of display quality, camera capabilities, and overall performance. The additional cost will be justified by the value it provides.
My Choice
Personally, I would choose the OnePlus 9. While it is more expensive, the performance difference is substantial, and the overall user experience would be significantly better. The superior display, faster charging, and more capable camera system are compelling enough to justify the higher price. As someone who often uses my phone for demanding tasks like photo editing, video streaming, and playing games, the OnePlus 9 would be a much better fit for my needs. The Oppo A55 simply does not offer the features or performance I need and would feel like a significant downgrade in terms of technology.