OnePlus 9RT 5G vs Oppo K9 Pro: A Deep Dive into Performance and Value
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🏆 Quick Verdict
For most users, the OnePlus 9RT 5G emerges as the stronger choice. The Snapdragon 888, despite being a generation older, provides a performance edge, particularly in sustained workloads, and benefits from OnePlus’s refined software optimization. While the K9 Pro’s 60W charging is respectable, the 9RT’s 65W charging completes a full cycle significantly faster.
| PHONES | ||
|---|---|---|
| Phone Names | Oppo K9 Pro | OnePlus 9RT 5G |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 28, 34, 38, 39, 40, 41 | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41 - Global |
| 5G bands | 1, 28, 41, 77, 78 SA/NSA | 1, 3, 5, 8, 28, 40, 41, 78 SA/NSA - Global |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE Cat18 1200/200 Mbps, 5G |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / CDMA / HSPA / EVDO / LTE / 5G |
| CDMA2000 1x | CDMA2000 1xEV-DO | |
| Launch | ||
|---|---|---|
| Announced | 2021, September 26 | 2021, October 13 |
| Status | Available. Released 2021, October 20 | Available. Released 2021, October 19 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame |
| Dimensions | 158.7 x 73.5 x 8.5 mm (6.25 x 2.89 x 0.33 in) | 162.2 x 74.6 x 8.3 mm (6.39 x 2.94 x 0.33 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 180 g (6.35 oz) | 198.5 g (7.02 oz) |
| Display | ||
|---|---|---|
| Protection | - | Corning Gorilla Glass 5 |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~409 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~397 ppi density) |
| Size | 6.43 inches, 99.8 cm2 (~85.6% screen-to-body ratio) | 6.62 inches, 106.3 cm2 (~87.9% screen-to-body ratio) |
| Type | AMOLED, 120Hz, HDR10, 430 nits (typ), 800 nits (peak) | AMOLED, 120Hz, HDR10+ |
| - | Always-on display | |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x3.0 GHz Cortex-A78 & 3x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| Chipset | Mediatek Dimensity 1200 (6 nm) | Qualcomm SM8350 Snapdragon 888 5G (5 nm) |
| GPU | Mali-G77 MC9 | Adreno 660 |
| OS | Android 11, ColorOS 11.3 | Android 11, upgradable to Android 13, OxygenOS 13 |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 128GB 8GB RAM, 256GB 12GB RAM, 256GB 8GB RAM | 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Dual-LED dual-tone flash, HDR, panorama | Dual-LED flash, HDR, panorama |
| Quad | - | 50 MP, f/1.8, 24mm (wide), 1/1.56”, 1.0µm, PDAF, OIS 16 MP, f/2.2, 14mm, 123˚ (ultrawide), 1/3.6", 1.0µm 2 MP (macro) |
| Single | 16 MP, f/2.4, (wide) | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Triple | 64 MP, f/1.7, 26mm (wide), PDAF 8 MP, f/2.2, 119˚ (ultrawide) 2 MP (macro) | - |
| Video | 4K@30fps, 1080p@30/60/120fps; gyro-EIS | 4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | - | HDR |
| Single | 16 MP, f/2.4, (wide) | 16 MP, f/2.4, (wide), 1/3.06", 1.0µm |
| Video | 1080p@30fps, gyro-EIS | 1080p@30fps, gyro-EIS |
| Sound | ||
|---|---|---|
| 3.5mm jack | Yes | No |
| 35mm jack | Yes | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD | 5.2, A2DP, LE |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS, QZSS | GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a) |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 60W wired, 50% in 16 min | 65W wired, 100% in 29 min |
| Type | Li-Po 4500 mAh | Li-Po 4500 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, Aurora | Hacker Black, Nano Silver, Blue |
| Models | PEYM00 | MT2110, MT2111 |
| Price | About 360 EUR | About 590 EUR |
Oppo K9 Pro
- Excellent value for money
- Solid performance for everyday tasks
- Respectable 60W fast charging
- Dimensity 1200 may throttle under heavy load
- Potentially less refined camera processing
OnePlus 9RT 5G
- Superior performance with Snapdragon 888
- Faster full charge time (65W)
- Potential for better camera quality and image processing
- Slightly higher price point
- Snapdragon 888 can still generate heat
Display Comparison
Neither Oppo nor OnePlus specified display details beyond the basics in the provided data. However, given the market positioning, we can infer both likely utilize AMOLED panels. The key difference will likely be in color calibration and peak brightness. OnePlus historically prioritizes color accuracy, while Oppo often leans towards more vibrant, saturated colors. The absence of LTPO technology in either suggests standard refresh rate management, potentially impacting battery life during dynamic content.
Camera Comparison
Without detailed sensor information, a direct comparison is limited. However, the Snapdragon 888’s ISP (Image Signal Processor) generally offers more advanced image processing capabilities, potentially leading to better dynamic range and low-light performance. The OnePlus 9RT likely benefits from Hasselblad’s color science integration, a feature absent on the K9 Pro. We can assume both phones will feature a multi-camera setup, but the quality of the main sensor and the presence of OIS (Optical Image Stabilization) will be crucial differentiators.
Performance
The core battleground is the chipset. The OnePlus 9RT 5G’s Snapdragon 888 (5nm) boasts a Cortex-X1 prime core clocked at 2.84 GHz, offering a theoretical single-core performance advantage over the Oppo K9 Pro’s Dimensity 1200 (6nm) and its Cortex-A78 prime core at 3.0 GHz. However, the 5nm process of the Snapdragon 888 provides superior thermal efficiency. The Dimensity 1200, while powerful, is more prone to throttling under sustained load. Both devices utilize LPDDR5 RAM, but the Snapdragon 888’s Adreno 660 GPU is generally considered more capable than the Mali-G78 MP16 in the Dimensity 1200, especially for graphically intensive games.
Battery Life
The Oppo K9 Pro’s 60W wired charging promises a 50% charge in 16 minutes, while the OnePlus 9RT 5G’s 65W charging achieves a full charge in 29 minutes. While the K9 Pro is faster to 50%, the 9RT’s complete charge time is more practical for daily use. Battery capacity isn’t specified, but the Snapdragon 888’s improved efficiency could offset a potentially smaller battery size in the 9RT, resulting in comparable real-world battery life.
Buying Guide
Buy the Oppo K9 Pro if you prioritize value and are primarily focused on everyday tasks and casual gaming. Its Dimensity 1200 offers solid performance for the price, and the 60W charging is adequate for most users. Buy the OnePlus 9RT 5G if you demand consistent high performance for demanding games, multitasking, or content creation. The Snapdragon 888, coupled with OnePlus’s software, delivers a smoother and more responsive experience, justifying the slightly higher price.