Oppo A9 (2020) vs Xiaomi Mi Mix 3

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 800, 900, 2100

HSDPA 800, 850, 900, 1900, 1700(AWS), 1800, 1900, 2100; CDMA2000 1xEV-DO - global; HSDPA 850, 900, 1700(AWS), 1900, 2100 - China
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500)

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700/2100) - global; LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A (2CA) Cat6, 603 Mbps download, 102 Mbps upload

LTE, Cat18, 1.2 Gbps download, 221 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

6.5 inches

6.39 inches
Resolution

720 x 1600 pixels

1080 x 2340 pixels
Pixel density

270 ppi

403 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass
Multitouch

Yes

Yes

Hardware
CPU

Octa-core

Octa-core
CPU

Quad-core 2.0 GHz Kryo 260 Gold

Quad-core 2.8 GHz Kryo 385 Gold
CPU(second)

quad-core 1.8 GHz Kryo 260 Silver

quad-core 1.7 GHz Kryo 385 Silver
Chipset

Qualcomm SDM665 Snapdragon 665

Qualcomm SDM845 Snapdragon 845
GPU

Adreno 610

Adreno 630
Memory RAM

4, 8 GB

6, 8, 10 GB
Internal storage

128 GB

128, 256 GB
Memory card

microSD, microSDHC, microSDXC

-
Memory card max

256 GB

-
Storage

UFS 2.1

-

Main camera
Camera type

Quad

Dual
Main camera

12 MP, f/1.8 , 1/2.3" , 0.8 µm

12 MP, f/1.8 , 1/2.55" , 1.4 µm
8 MP, f/2.3 , 13 mm, 1/4" , 1.12 µm

12 MP, f/2.4 , 1/3.4" , 1.0 µm
2 MP, f/2.4 , 1.75 µm
2 MP, f/2.4 , 1/5" , 1.75 µm
Primary camera resolution

8000 x 6000 pixels

4032 x 3024 pixels
Primary camera video

2160p@30fps, 1080p@30fps, gyro-EIS

2160p@30/60fps, 1080p@30/60fps, 1080p@960fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, night mode, phase detection autofocus

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
DxOMark photo

-

108
DxOMark video

-

93
DxOMark camera score

-

103

Selfie camera
Selfie camera type

-

Dual
Selfie camera

16 MP, f/2.0 , 1/3.1" , 1.0 µm

24 MP, f/2.2 , 1/2.8" , 0.9 µm, 19 mm
Selfie camera resolution

4640 x 3488 pixels

5760 x 4312 pixels
Selfie camera video

1080p@30fps

1080p@30fps
DxOMark photo

-

83
DxOMark video

-

85
DxOMark camera score

-

84

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

Yes

Yes
Bluetooth EDR

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

Yes

Yes
QZSS

-

Yes

Features
Sensors

Accelerometer, fingerprint, geomagnetic, gyroscope, light, proximity

Accelerometer, compass, gyroscope, fingerprint, light, proximity