Oppo Find X3 vs OnePlus 9 Pro: A Detailed Comparison of Flagship Android Phones

The Oppo Find X3 and OnePlus 9 Pro represent a fascinating intersection of brands, both historically under the BBK Electronics umbrella. While OnePlus has carved a niche as a performance-focused brand, the Find X3 aimed for a more holistic premium experience. Now, with price drops on the X3, a direct comparison is crucial for consumers seeking top-tier Android performance without breaking the bank.
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🏆 Quick Verdict

For most users, the OnePlus 9 Pro emerges as the stronger choice. Its Snapdragon 888 chipset, while potentially prone to thermal throttling, offers a performance ceiling higher than the Find X3’s Snapdragon 870. The faster 65W wired charging and comparable battery endurance solidify its position as the superior all-rounder.

PHONES
Phone Names Oppo Find X3 OnePlus 9 Pro
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100
4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42, 66 - China1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - EU
5G bands1, 2, 3, 5, 7, 8, 12, 20, 28, 38, 40, 41, 66, 77, 78, 79 - China1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 78 SA/NSA - EU
SpeedHSPA, LTE, 5GHSPA 42.2/5.76 Mbps, LTE Cat20 2000/200 Mbps, 5G
TechnologyGSM / CDMA / HSPA / CDMA2000 / LTE / 5GGSM / CDMA / HSPA / LTE / 5G
 -1, 3, 28, 41, 78, 79 SA/NSA - CN
Launch
Announced2021, March 112021, March 23
StatusAvailable. Released 2021, March 19Available. Released 2021, March 30
Body
BuildGlass front (Gorilla Glass), glass back, aluminum frameGlass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame
Dimensions163.6 x 74 x 8.3 mm (6.44 x 2.91 x 0.33 in)163.2 x 73.6 x 8.7 mm (6.43 x 2.90 x 0.34 in)
SIMNano-SIM + eSIM· Nano-SIM· Nano-SIM + Nano-SIM
Weight193 g (6.81 oz)197 g (6.95 oz)
 -IP68 dust/water resistant (up to 1.5m for 30 min)
Display
ProtectionCorning Gorilla GlassCorning Gorilla Glass 5
Resolution1440 x 3216 pixels, 20:9 ratio (~525 ppi density)1440 x 3216 pixels, 20:9 ratio (~525 ppi density)
Size6.7 inches, 108.4 cm2 (~89.6% screen-to-body ratio)6.7 inches, 108.4 cm2 (~90.3% screen-to-body ratio)
TypeLTPO AMOLED, 1B colors, 120Hz, HDR10+, BT.2020, 500 nits (typ), 1300 nits (peak)LTPO Fluid2 AMOLED, 1B colors, 120Hz, HDR10+, 1300 nits (peak)
 -Always-on display
Platform
CPUOcta-core (1x3.2 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.80 GHz Kryo 585)Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55
ChipsetQualcomm SM8250-AC Snapdragon 870 5G (7 nm)Qualcomm SM8350 Snapdragon 888 5G (5 nm)
GPUAdreno 650Adreno 660
OSAndroid 11, upgradable to Android 13, ColorOS 13Android 11, upgradable to Android 14, OxygenOS 14
Memory
Card slotNoNo
Internal128GB 8GB RAM, 256GB 8GB RAM128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM
 -UFS 3.1
Main Camera
FeaturesColor spectrum sensor, LED flash, HDR, panoramaLaser AF, color spectrum sensor, Hasselblad Color Calibration, dual-LED flash, HDR, panorama
Quad50 MP, f/1.8, 26mm (wide), 1/1.56", 1.0µm, multi-directional PDAF, OIS 13 MP, f/2.4, 52mm (telephoto), 1/3.4", 1.0µm, 2x optical zoom, PDAF 50 MP, f/2.2, 16mm, 110˚ (ultrawide), 1/1.56", 1.0µm, multi-directional PDAF 3 MP, f/3.0, (microscope), AF, ring flash, 60x magnification48 MP, f/1.8, 23mm (wide), 1/1.43", 1.12µm, multi-directional PDAF, OIS 8 MP, f/2.4, 77mm (telephoto), 1.0µm, PDAF, OIS, 3.3x optical zoom 50 MP, f/2.2, 14mm (ultrawide), 1/1.56", 1.0µm, AF 2 MP, f/2.4, (monochrome)
Single-16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video4K@30/60fps, 1080p@30/60/240fps; gyro-EIS; HDR, 10‑bit video8K@30fps, 4K@30/60/120fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS
Selfie camera
FeaturesPanoramaHDR
Single32 MP, f/2.4, 26mm (wide), 1/2.8", 0.8µm16 MP, f/2.4, (wide), 1/3.06", 1.0µm
Video1080p@30fps1080p@30fps, gyro-EIS
Sound
3.5mm jack -No
35mm jackNoNo
Loudspeaker Yes, with stereo speakersYes, with stereo speakers
 -24-bit/192kHz audio
Comms
Bluetooth5.2, A2DP, LE, aptX HD5.2, A2DP, LE, aptX HD
NFCYesYes
PositioningGPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5)GPS (L1+L5), GLONASS (G1), BDS (B1), GALILEO (E1+E5a)
RadioNoNo
USBUSB Type-C 3.1, OTGUSB Type-C 3.1, OTG
WLANWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi DirectWi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct, DLNA
Features
SensorsFingerprint (under display, optical), accelerometer, gyro, proximity, compassFingerprint (under display, optical), accelerometer, gyro, proximity, compass
Battery
Charging65W wired, PD, 40% in 10 min 30W wireless, 100% in 80 min 10W reverse wireless65W wired, PD, 100% in 29 min 50W wireless, 100% in 43 min 5W reverse wireless
TypeLi-Po 4500 mAhLi-Po 4500 mAh
Misc
ColorsGloss Black, Blue, WhiteMorning Mist, Forest Green, Stellar Black
ModelsPEDM00LE2121, LE2125, LE2123, LE2120, LE2127
PriceAbout 600 EUR€ 246.17 / $ 264.95 / £ 287.00
Tests
Battery life- Endurance rating 86h
Camera- Photo / Video
Loudspeaker- -24.1 LUFS (Very good)

Oppo Find X3

  • More efficient Snapdragon 870 chipset
  • Potentially lower price point
  • Good all-around performance

  • Slower charging speeds
  • Less powerful chipset compared to the 888
  • Camera system details are limited

OnePlus 9 Pro

  • More powerful Snapdragon 888 chipset
  • Faster 65W wired and 50W wireless charging
  • Hasselblad-tuned camera system

  • Potential for thermal throttling
  • May be more expensive
  • Chipset can be less power efficient

Display Comparison

The OnePlus 9 Pro boasts a measured peak brightness of 859 nits, suggesting a more visible display in direct sunlight compared to the Oppo Find X3 (brightness data unavailable). While both likely utilize high-refresh-rate AMOLED panels, the OnePlus 9 Pro’s display technology is more widely documented for its color accuracy and LTPO implementation, potentially leading to more dynamic refresh rate adjustments for improved battery efficiency. Bezels are expected to be comparable, given both phones target the flagship segment.

Camera Comparison

Both phones are equipped for strong photo and video capabilities, but details beyond that are limited. The OnePlus 9 Pro’s camera system, developed in partnership with Hasselblad, likely emphasizes color science and dynamic range. Sensor size and lens apertures are critical factors not provided, but the OnePlus 9 Pro’s marketing focused heavily on its camera prowess. The Oppo Find X3 likely prioritizes a balanced camera experience, but without specific sensor details, a definitive comparison is difficult. We can safely assume both phones offer capable main sensors and ultrawide lenses, but the OnePlus 9 Pro likely has the edge in overall image quality and versatility.

Performance

The core difference lies in the chipsets. The OnePlus 9 Pro’s Snapdragon 888 (5nm) offers a theoretical performance advantage over the Oppo Find X3’s Snapdragon 870 (7nm). The 888’s Cortex-X1 prime core provides a significant boost in single-core performance, beneficial for demanding applications. However, the 888 is known to run hotter, potentially leading to thermal throttling during sustained loads. The 870, while less powerful on paper, is renowned for its efficiency and sustained performance. Both phones feature ample RAM, likely LPDDR5, minimizing performance bottlenecks. The OnePlus 9 Pro’s GPU will also provide a noticeable edge in graphically intensive tasks.

Battery Life

Both devices share an endurance rating of 86 hours, suggesting comparable real-world battery life despite potential differences in battery capacity (data unavailable for the Find X3). However, charging speeds diverge significantly. The OnePlus 9 Pro’s 65W wired charging achieves a full charge in just 29 minutes, while the Oppo Find X3 takes 80 minutes for a full wireless charge and 10 minutes for a 40% wired charge. The OnePlus 9 Pro also offers 50W wireless charging, significantly faster than the Find X3’s 30W. This makes the OnePlus 9 Pro the clear winner for users who prioritize rapid replenishment.

Buying Guide

Buy the Oppo Find X3 if you prioritize a slightly more efficient chipset and are sensitive to price. The Snapdragon 870 provides excellent performance for everyday tasks and gaming without the potential for aggressive throttling seen in some Snapdragon 888 implementations. Buy the OnePlus 9 Pro if you demand the absolute highest performance potential, value faster charging speeds, and appreciate a more refined software experience, even if it comes with a slight risk of thermal limitations.

Frequently Asked Questions

❓ Does the Snapdragon 888 in the OnePlus 9 Pro suffer from significant overheating during prolonged gaming sessions?
The Snapdragon 888 is known to generate more heat than previous generations. While the OnePlus 9 Pro incorporates cooling solutions, extended gaming at maximum settings can lead to thermal throttling, reducing sustained performance. However, the throttling is generally manageable and doesn't render the phone unusable.
❓ How does the 30W wireless charging on the Oppo Find X3 compare to the 50W on the OnePlus 9 Pro in terms of real-world usage?
The 50W wireless charging on the OnePlus 9 Pro is significantly faster. While the Oppo Find X3’s 30W is still convenient, it takes approximately 80 minutes for a full charge, whereas the OnePlus 9 Pro achieves a full wireless charge in just 43 minutes. This difference is substantial for users who frequently rely on wireless charging.
❓ Is the difference in chipset performance between the Snapdragon 870 and 888 noticeable in everyday tasks like browsing and social media?
For typical daily usage, the difference between the Snapdragon 870 and 888 is minimal. Both chipsets provide a smooth and responsive experience. The 888’s advantage becomes more apparent in demanding tasks like video editing, gaming, and running multiple resource-intensive applications simultaneously.