Oppo A31 vs Xiaomi Redmi 9: Price in Bangladesh & Full Comparison
Table of Contents
DevicesFinder.com Score: A31 vs Redmi 9
A31
7/10
Wins 1 of 6 categories
Redmi 9
7.8/10
Wins 5 of 6 categories
Each category is scored out of 10. The stronger colour marks the winner.
A31CategoryRedmi 9
7
Network
8
6
Processor
8
7
Ram
8
8
Rom
7
7
Display
8
7
Battery
8
A31 vs Redmi 9 Specifications Comparison
A31Full specs
Redmi 9Full specsDisplay
Type
A31: IPS LCD · 480 nits typical
Redmi 9: IPS LCD · 400 nits typical
Size
A31: 6.5 inches · 82.4% screen-to-body
Redmi 9: 6.53 inches · 83.2% screen-to-body
Resolution
A31: 720 × 1600 · 20:9
Redmi 9: 1080 × 2340 · 19.5:9
Pixel Density
A31: 270 ppi
Redmi 9: 395 ppi
Protection
A31: Corning Gorilla Glass 3
Redmi 9: Corning Gorilla Glass 3
General
Brand
A31: Oppo
Redmi 9: Xiaomi
Model
A31: Oppo A31
Redmi 9: Xiaomi Redmi 9
Launch Date
A31: 13 February 2020. On sale 14 February 2020
Redmi 9: 10 June 2020
Status
A31: Discontinued
Redmi 9: Available. Released 10 June 2020
Color Variant
A31: Fantasy White, Lake Green, Mystery Black
Redmi 9: Carbon Gray, Ocean Green, Pink/Blue, Sunset Purple
Network
Technology
A31: LTE, HSPA, GSM
Redmi 9: LTE, HSPA, GSM
Speed
A31: LTE, HSPA
Redmi 9: LTE, HSPA
2G Bands
A31: 1900, 1800, 900, 850 MHz (GSM)
Redmi 9: 1900, 1800, 900, 850 MHz (GSM)
3G Bands
A31: 2100, 900, 850 MHz (HSDPA) · International
Redmi 9: 2100, 1900, 1700 (AWS), 900, 850 MHz (HSDPA)
4G Bands
A31: B1, B3, B5, B7, B8, B20, B28, B38, B40, B41 (International)
Redmi 9: B1, B2, B3, B4, B5, B7, B8, B20, B28, B38, B40, B41
Audio
Speakers
A31: Yes
Redmi 9: Yes
Headphone Jack
A31: Yes
Redmi 9: Yes
Battery
Type
A31: Li-Po
Redmi 9: Li-Po
Capacity
A31: 4230 mAh
Redmi 9: 5020 mAh
Charging
A31: —
Redmi 9: 18 W wired
Body
Dimensions
A31: 163.9 × 75.5 × 8.3 mm
Redmi 9: 163.3 × 77 × 9.1 mm
Weight
A31: 180 g
Redmi 9: 198 g
Build Materials
A31: Front: Glass (Gorilla Glass 3) · Back: Plastic · Frame: Plastic
Redmi 9: Front: Glass (Gorilla Glass 3) · Back: Plastic · Frame: Plastic
Connectivity
Supported SIM
A31: 2 × Nano-SIM
Redmi 9: 2 × Nano-SIM
Wifi
A31: Wi-Fi ac/n/g/b/a, Dual-band, Wi-Fi Direct
Redmi 9: Wi-Fi ac/n/g/b/a, Dual-band, Wi-Fi Direct
Bluetooth
A31: Bluetooth 5.0, A2DP, LE
Redmi 9: Bluetooth 5.0, A2DP, LE
Nfc
A31: No
Redmi 9: Yes, in some markets
Usb
A31: MicroUSB 2.0, OTG
Redmi 9: OTG, USB Type-C 2.0
Fm Radio
A31: Yes
Redmi 9: Wireless (no wired headphones required)
Other
A31: BDS, GLONASS, GPS
Redmi 9: BDS, GLONASS, GPS
Infrared Port
A31: —
Redmi 9: Yes
Front Camera
Sensor
A31: 8 MP wide · f/2.0 · 1/4.0" · 1.12 µm
Redmi 9: 8 MP wide · f/2.0 · 27 mm · 1/4.0" · 1.12 µm
Features
A31: HDR
Redmi 9: HDR
Video Recording
A31: 1080p at 30 fps
Redmi 9: 1080p at 30 fps
Main Camera
Main Sensor
A31: 12 MP wide · f/1.8 · PDAF · 1/2.86" · 1.25 µm + Auxiliary lens + 2 MP macro
Redmi 9: 13 MP wide · f/2.2 · 28 mm · PDAF · 1/3.1" · 1.12 µm + Auxiliary lens + 5 MP macro
Features
A31: HDR, LED flash, Panorama
Redmi 9: HDR, LED flash, Panorama
Video Recording
A31: 1080p at 30 fps
Redmi 9: 1080p at 30 fps
Ultra Wide
A31: —
Redmi 9: 8 MP ultrawide · f/2.2 · 118° · 1/4.0" · 1.12 µm
Memory
Card Slot
A31: Dedicated MicroSDXC slot
Redmi 9: Dedicated MicroSDXC slot
Internal Storage
A31: 64 GB, 128 GB
Redmi 9: 32 GB, 64 GB, 128 GB
Performance
Chipset
A31: Helio P35 by Mediatek (MT6765V/CB), 12 nm
Redmi 9: Helio G80 by Mediatek (MT6769V/CU), 12 nm
Cpu
A31: 8 cores: 4 × 2.3 GHz Cortex-A53 + 4 × 1.8 GHz Cortex-A53
Redmi 9: 8 cores: 2 × 2.0 GHz Cortex-A75 + 6 × 1.8 GHz Cortex-A55
Gpu
A31: PowerVR GE8320
Redmi 9: Mali-G52 MC2
Ram
A31: 4 GB, 6 GB
Redmi 9: 3 GB, 4 GB, 6 GB
Platform
Os
A31: Android 9.0 · ColorOS 6.1
Redmi 9: Android 10 · MIUI 13 · Upgrades to Android 12
Sensors
Sensor
A31: Accelerometer, Compass, Fingerprint (rear-mounted), Gyro, Proximity
Redmi 9: Accelerometer, Compass, Fingerprint (rear-mounted), Proximity
Benchmarks
Performance Scores
A31: —
Redmi 9: AnTuTu v8: 201,829 · Geekbench 5.1: 1,325
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