Oppo A31 vs Xiaomi 12S Ultra

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900;CDMA 800
3G network

HSDPA 850, 900, 2100

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

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

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26, 34, 38, 39, 40, 41, 42
5G network

-

5G band 1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79 SA/NSA
HSDPA speed

42 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A
GPRS

Yes

Class 33
EDGE

Yes

Class 33

Design
Build

Plastic

Glass front (Gorilla Glass Victus), eco leather back, aluminum frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

163.9 mm

163.2 mm
Width

75.5 mm

75 mm
Thickness

8.3 mm

9.1 mm
Weight

180 g

225 g
Colors

Black, White

Black, Green

Display
Display type

IPS capacitive touchscreen

LTPO2 AMOLED
Physical size

6.5 inches

6.73 inches
Resolution

720 x 1600 pixels

1440 x 3200 pixels
Pixel density

270 ppi

522 ppi
Display colors

16777216

1073741824
Protection

Scratch resistant

Scratch resistant, Corning Gorilla Glass Victus
Multitouch

Yes

-
Display features

-

120Hz, Dolby Vision, HDR10+, 1000 nits (HBM), 1500 nits (peak)

Main camera
Camera type

Triple

Quad
Main camera

12 MP, f/1.8

50 MP, f/1.9 , (wide) , 23 mm, 1.0" , 1.6 µm
2 MP, f/2.4 , 27 mm

48 MP, f/4.1 , 120 mm, (periscope telephoto) , 1/2.0" , 0.8 µm
2 MP, f/2.4

48 MP, f/2.2 , 128˚ , (ultrawide) , 13 mm, 1/2.0" , 0.8 µm
Primary camera resolution

4096 x 3072 pixels

-
Primary camera video

1080p@30fps

8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, 720p@3840fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K, 1080p)
Primary camera optics

-

Leica lens
Primary camera flash

LED flash

dual-LED flash
Camera features

Autofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

Autofocus, continuous autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, face unlock, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, super night mode 2.0, HDR10 video recording

Connectivity
WLAN

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

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
WLAN DLNA

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

-

aptX HD, aptX Adaptive
Infrared

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

Yes

Yes
QZSS

-

Yes
NavIC

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, light, proximity

Accelerometer, barometer, color spectrum, compass, fingerprint, gyroscope, virtual proximity sensing