Oppo K7x vs Xiaomi Mi A2

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800

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

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

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 34, 38, 39, 40, 41

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

5G band 1, 41, 77, 78 SA/NSA

-
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

LTE-A (2CA)

LTE
5G speed

2.3 Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Front glass, aluminum body
SIM

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

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

162.2 mm

158.7 mm
Width

75.1 mm

75.4 mm
Thickness

9.1 mm

7.3 mm
Weight

194 g

168 g
Colors

Black, Blue

Black, Cherry Pink, Flame Red, Glacier Blue, Sand Gold

Display
Display type

LTPS IPS LCD

LTPS IPS LCD capacitive touchscreen
Physical size

6.5 inches

5.99 inches
Resolution

1080 x 2400 pixels

1080 x 2160 pixels
Pixel density

405 ppi

403 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3

Corning Gorilla Glass 3
Multitouch

-

Yes
Display features

480 nits (typ), 600 nits (peak), 90Hz

-

Main camera
Camera type

Quad

Dual
Main camera

(wide) , 48 MP, f/1.7 , 25 mm, 1/2.0" , 0.8 µm

12 MP, f/1.8 , 1/2.9" , 1.25 µm, 2x optical zoom
(ultrawide) , 8 MP, f/2.2 , 119˚ , 1/4.0" , 1.12 µm

20 MP, f/1.8 , 1/2.8" , 1 µm
(macro) , 2 MP, f/2.4
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

4000 x 3000 pixels
Primary camera video

4K@30fps, 1080p@30/60/120fps; gyro-EIS

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

LED flash

LED flash
Electronic image stabilization

-

EIS (gyro)
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, phase detection autofocus

Geo-tagging, HDR, face detection, panorama, touch focus

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 16 MP, f/2.0 , 26 mm, 1/3.06" , 1.0 µm

20 MP, f/1.8 , 1/2.8" , 1.0 µm
Selfie camera resolution

4640 x 3456 pixels

5384 x 3752 pixels
Secondary camera HDR

-

Auto HDR
Selfie camera features

Face unlock, HDR

-
Selfie camera video

1080p@30fps

1080p@30fps

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, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 2.0

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

Yes

-
Bluetooth

v5.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
Bluetooth AptX

aptX HD

-
Infrared

-

Yes
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
BDS

Yes

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Email

-

Push Email
Sensors

Accelerometer, compass, fingerprint, gyroscope, proximity

Fingerprint (rear-mounted), accelerometer, compass, gyro, proximity