Oppo A7n vs Xiaomi Mi 9

Network
2G network

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

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

HSDPA 850, 900, 1900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 20(800), 28(700), 38(2600), 39(1900), 40(2300)
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

3.1 Mbps download, 1.8 Mbps upload

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE-A (2CA), Cat6, 300 Mbps download, 50 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

S-IPS LCD capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

6.2 inches

6.39 inches
Resolution

720 x 1520 pixels

1080 x 2340 pixels
Pixel density

271 ppi

403 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5
Multitouch

Yes

Yes
Display features

-

HDR10, DCI-P3

Main camera
Camera type

Dual

Triple
Main camera

13 MP, f/2.2

48 MP, f/1.8 , 1/2" , 0.8 µm, 2x optical zoom
2 MP, f/2.4

16 MP, f/2.2 , 13 mm, 1/3" , 1.0 µm
12 MP, f/2.2 , 54 mm, 1/3.6" , 1.0 µm
Primary camera resolution

4608 x 3456 pixels

8000 x 6000 pixels
Primary camera video

1080p@30fps

2160p@30/60fps, 1080p@30/120/240fps, 1080p@960fps
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

phase detection autofocus

-
Camera features

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

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

-

115
DxOMark video

-

99
DxOMark camera score

-

110

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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
WLAN WiFi Dual Band

-

Yes
WLAN DLNA

-

Yes
USB

microUSB 2.0

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

Yes

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD
Infrared

-

Yes
NFC

Yes

Yes
GPS

Yes, with A-GPS

Yes, with dual-band A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

Yes
Beidou

-

Yes
BDS

Yes

-
QZSS

-

Yes