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Oppo Find X3 vs OnePlus 9

Here we compared two flagship smartphones: the 6.7-inch Oppo Find X3 (with Qualcomm Snapdragon 870 5G) that was released on March 11, 2021, against the OnePlus 9, which is powered by Qualcomm Snapdragon 888 5G and came out 1 month after. On this page, you will find tests, full specs, strengths, and weaknesses of each of the gadgets.

Key differences

An overview of the main advantages of each smartphone
Reasons to consider the Oppo Find X3
  • Waterproof body (IP68 classification)
  • The rear camera has a 2x optical zoom
  • Delivers 59% higher maximum brightness (1299 against 815 nits)
  • 31% higher pixel density (525 vs 402 PPI)
  • Optical image stabilization
  • Reverse charging feature
Reasons to consider the OnePlus 9
  • Uses a faster type of memory: LPDDR5 2750 MHz
  • More energy-efficient CPU – Snapdragon 888 5G
  • 27% faster in single-core GeekBench 5 test: 1118 and 881 points

Review

Display
Screen quality, color accuracy, brightness
Performance
CPU/GPU performance in apps and games
Battery
Battery life, charging type and speed
Camera
Photo and video recording quality
Connectivity
Networks, ports, data transmission
NanoReview score
Final comparison evaluation

Value for money

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Price

Tests and specifications

Comparison table of technical specifications and tests
Phone:
vs

Display

Type AMOLED AMOLED
Size 6.7 inches 6.55 inches
Resolution 1440 x 3216 pixels 1080 x 2400 pixels
Aspect ratio 20:9 20:9
PPI 525 ppi 402 ppi
Refresh rate 120 Hz 120 Hz
HDR support Yes, HDR10+ Yes, HDR10+
Screen protection Corning Gorilla Glass 5 Corning Gorilla Glass 5
Screen-to-body ratio 89.6% 87.6%
Display features - DCI-P3
- Always-On Display
- DCI-P3
- Always-On Display
- DC Dimming
Display tests
RGB color space - 98.9%
PWM - 323 Hz
Response time - 13 ms
Contrast - ∞ Infinity
Max. Brightness
Find X3 +59%
1299 nits
815 nits
Sources: NotebookCheck [1]

Design and build

Height 163.6 mm (6.44 inches) 160 mm (6.3 inches)
Width 74 mm (2.91 inches) 74.2 mm (2.92 inches)
Thickness 8.3 mm (0.33 inches) 8.7 mm (0.34 inches)
Weight 193 gramm (6.81 oz) 192 gramm (6.77 oz)
Waterproof IP68 No
Rear material Glass Glass
Frame material Metal Plastic
Colors White, Black, Blue Black, Blue, Purple
Fingerprint scanner Yes, in-display Yes, in-display
Screen-to-body ratio
Find X3 +2%
89.6%
87.6%

Performance

Tests of Oppo Find X3 and OnePlus 9 in the benchmarks
SoC
Chipset Qualcomm Snapdragon 870 5G Qualcomm Snapdragon 888 5G
Max. clock 3200 MHz 2840 MHz
CPU cores 8 (1 + 3 + 4) 8 (1 + 3 + 4)
Architecture - 4 cores at 1.8 GHz: Kryo 585 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 585 Gold (Cortex-A77)
- 1 core at 3.2 GHz: Kryo 585 Prime (Cortex-A77)
- 4 cores at 1.8 GHz: Kryo 680 Silver (Cortex-A55)
- 3 cores at 2.42 GHz: Kryo 680 Gold (Cortex-A78)
- 1 core at 2.84 GHz: Kryo 680 Prime (Cortex-X1)
L3 cache 4 MB 4 MB
Lithography process 7 nanometers 5 nanometers
Graphics Adreno 650 Adreno 660
GPU clock 675 MHz 840 MHz
FLOPS ~1372 GFLOPS ~1720 GFLOPS
Memory
RAM size 8 GB 8, 12 GB
Memory type LPDDR4X LPDDR5
Memory clock 2133 MHz 2750 MHz
Channels 2 4
Storage
Storage size 128, 256 GB 128, 256 GB
Storage type UFS 3.1 UFS 3.1
Memory card No No

Benchmarks

Geekbench 5 (Single-Core)
881
OnePlus 9 +27%
1118
Geekbench 5 (Multi-Core)
3100
OnePlus 9 +16%
3599
AnTuTu Benchmark 9
703077
OnePlus 9 +2%
716725

Software

Operating system Android 11 Android 11
ROM ColorOS 11.2 OxygenOS 11.2.7.7
OS size - 35 GB

Battery

Specifications
Capacity 4500 mAh 4500 mAh
Charge power 65 W 65 W
Battery type Li-Po Li-Po
Replaceable No No
Wireless charging Yes (30 W) Yes (15 W)
Reverse charging Yes, (wireless) No
Fast charging Yes (40% in 10 min) Yes (100% in 29 min)
Full charging time 1:20 hr 0:29 hr

Battery life tests

Web browsing (Wi-Fi)
n/a
13:10 hr
Watching videos (Player)
n/a
15:19 hr
Talk (3G)
n/a
28:07 hr

Camera

Specs and camera test of smartphones
Main camera
Matrix 50 megapixels 48 megapixels
Image resolution 8700 x 5800 8000 x 6000
Zoom Optical, 2x Digital
Flash LED Dual LED
Stabilization Optical Digital
8K video recording No Up to 30FPS
4K video recording Up to 60FPS Up to 60FPS
1080p video recording Up to 60FPS Up to 60FPS
Slow motion 240 FPS (1080p) 240 FPS (1080p)
Angle of widest lens 110° 140°
Lenses 4 (50 MP + 13 MP + 50 MP + 3 MP) 3 (48 MP + 50 MP + 2 MP)
Wide (main) lens - 50 MP
- Aperture: f/1.8
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS)
- Phase autofocus
- Optical stabilization
- 48 MP
- Aperture: f/1.8
- Focal length: 23 mm
- Pixel size: 1.12 micron
- Sensor: 1/1.43", Sony IMX689 (Exmor-RS CMOS)
- Phase autofocus
Telephoto lens - 13 MP
- Aperture: f/2.4
- Focal length: 52 mm
- Pixel size: 1 micron
- Sensor: 1/3.4", Samsung S5K3M5 (ISOCELL CMOS)
- Phase autofocus
-
Ultra-wide lens - 50 MP
- Aperture: f/2.2
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS)
- Phase autofocus
- 50 MP
- Aperture: f/2.2
- Focal length: 14 mm
- Pixel size: 1 micron
- Sensor: 1/1.56", Sony IMX766 (Exmor-RS CMOS)
- Phase autofocus
Monochrome lens - - 2 MP
- Aperture: f/2.4
Macro lens - 3 MP
- Aperture: f/3.0
- Pixel size: 1.12 micron
- Sensor: 1/5", GalaxyCore GC5035 (CMOS)
-
Camera features - Bokeh mode
- Pro mode
- RAW support
- Bokeh mode
- Pro mode
- RAW support
Samples - Photo samples of OnePlus 9 from DxOMark
Selfie camera
Megapixels 32 megapixels 16 megapixels
Image resolution 6464 x 4864 4920 x 3264
Aperture f/2.4 f/2.0
Focal length 26 mm -
Pixel size 0.8 microns 1 microns
Sensor type Exmor-RS CMOS Exmor-RS CMOS
Sensor size 1/2.8" 1/3.06"
Video resolution 1080p (Full HD) at 30 FPS 1080p (Full HD) at 30 FPS

DxOMark camera tests

Photo quality
n/a
123
Video quality
n/a
104
Generic camera score
n/a
115

Connectivity

Wi-Fi standard Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Wi-Fi 6 (802.11 a/b/g/n/ac/ax)
Wi-Fi features - Dual Band
- Wi-Fi MiMO
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
- Dual Band
- Wi-Fi Direct
- Wi-Fi Hotspot
- Wi-Fi Display
Bluetooth version 5.2 5.2
Bluetooth features LE, A2DP LE, A2DP
USB type USB Type-C USB Type-C
USB version 3.1 3.1
USB features - Charging
- USB-Storage mode
- OTG
- Charging
- USB-Storage mode
- OTG
GPS GPS, GLONASS, Beidou, Galileo, QZSS GPS, GLONASS, Beidou, Galileo, SBAS
NFC* Yes Yes
Infrared port No No
Network
Number of SIM* 2 2
Type of SIM card Nano Nano
Multi SIM mode Standby Standby
eSIM support* No No
Hybrid slot No No
LTE Cat* 24 20
5G support Yes Yes

Sound

Speakers Stereo Stereo
Headphone audio jack No No
FM radio No No
Dolby Atmos Yes Yes
Speakers test
Max. loudness
n/a
83 dB

Other

Category Flagship Flagship
Announced March 2021 March 2021
Release date March 2021 March 2021
Launch price ~ 635 USD ~ 537 USD
Sensors - Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
- Barometer
- Proximity sensor
- Gyroscope
- Accelerometer
- Ambient light sensor
- Compass
- Fingerprint
*Disclaimer! NFC, GSM network support, and some other specs can be different depending on the country.

Conclusion

If the display, camera, and design are more important to you, then choose the Oppo Find X3. But if the performance, software, and sound are more of a priority – go for the OnePlus 9.

Cast your vote

So, which phone would you choose?
2 (50%)
2 (50%)
Total votes: 4

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