OPPO A31 vs A9
Specs compared side by side, measured on real phones shared by owners with the Device Info app.
Key differences
- 1Chipset: the A31 uses the Helio P35 (12 nm), the A9 the Helio P70 (12 nm). The A31's fastest core runs at 2.30 GHz, the A9's at 2.11 GHz.
- 2Screen: Up to 60 Hz on the A31, 60.2 Hz on the A9.
- 3Battery: 4,230 mAh on the A31, 4,020 mAh on the A9.
- 4Main camera: 12.7 MP on the A31, 15.9 MP on the A9.
The same on both: Android 9 and Widevine L3.
Chipset
Chipset
Helio P35Helio P70Process
12 nm12 nm
CPU
4× 2.30 GHz Cortex-A53
4× 1.80 GHz Cortex-A534× 2.11 GHz Cortex-A73
4× 1.99 GHz Cortex-A53
4× 1.80 GHz Cortex-A534× 2.11 GHz Cortex-A73
4× 1.99 GHz Cortex-A53
Top CPU speed
2.30 GHz2.11 GHz
CPU cores
88
GPU
PowerVR Rogue GE8320Mali-G72 MP3
Memory
Versions seen
4GB | 32GB
4GB | 128GB
6GB | 64GB4GB | 128GB
4GB | 128GB
6GB | 64GB4GB | 128GB
RAM type
LPDDR4XLPDDR4X
Display
Size
6.5 in6.5 in
Resolution
720 × 16001080 × 2340
Pixel density
269 ppi395 ppi
Refresh rates
60 Hz60.2 Hz
Battery
Capacity
4,230 mAh4,020 mAh
Cameras
Back camera
12.7 MP4112 × 3088 · f/1.8 · 4.05 mm15.9 MP4608 × 3456 · f/1.8 · 4.05 mm
Front camera
8 MP3264 × 2448 · f/2 · 2.75 mm16.2 MP4640 × 3488 · f/2 · 3.58 mm
Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.
Connectivity
NFC
NoNo
UWB
NoNo
USB host
YesYes
Software
Android
Android 9Android 9
Released with
Android 9Android 9
Widevine DRM
L3L3
Sensors
Sensors
23 sensors30 sensors
These two phones have the same specs in every row.
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