Oppo K7 5G vs ZTE nubia Z18

Network
2G network

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

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; CDMA2000 1xEV-DO
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 20(800), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

42.2 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE-A

LTE-A (6CA), Cat18, 1200 Mbps download, 150 Mbps upload
5G speed

1.9 Gbps download

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame

Aluminium alloy, glass
SIM

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

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

160.3 mm

148.6 mm
Width

74.3 mm

72.6 mm
Thickness

8 mm

8.6 mm
Weight

180 g

172 g
Colors

Black, Blue, Blue/Red, White

Black, Blue, Red

Display
Display type

AMOLED capacitive touchscreen

LTPS IPS LCD capacitive touchscreen
Physical size

6.4 inches

5.99 inches
Resolution

1080 x 2400 pixels

1080 x 2160 pixels
Pixel density

411 ppi

403 ppi
Display colors

16777216

16777216
Protection

Scratch resistant

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 3, LTPS(Low temperature PolySilicon)
Multitouch

-

Yes

Hardware
CPU

Octa-core

Octa-core
CPU

Single-core 2.4 GHz Kryo 475 Prime

Quad-core 2.65 GHz Kryo 385 Gold
CPU(second)

Single-core 2.2 GHz Kryo 475 Gold

quad-core 1.8 GHz Kryo 385 Silver
CPU(third)

Hexa-core 1.8 GHz Kryo 475 Silver
Chipset

Qualcomm SDM765 Snapdragon 765G

Qualcomm SDM845 Snapdragon 845
GPU

Adreno 620

Adreno 630
Memory RAM

8 GB

6, 8 GB
Internal storage

128, 256 GB

64, 128 GB
Memory card

No

-
Storage

UFS 2.1

-

Main camera
Camera type

Quad

Dual
Main camera

48 MP, f/1.7 , 1/2.0" , 0.8 µm

24 MP, f/1.6 , 1.12 µm
8 MP, f/2.2 , 13 mm, 1/4" , 1.12 µm

16 MP, f/1.6
2 MP, f/2.4 , 1/5" , 1.75 µm
2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

4608 x 3456 pixels
Primary camera video

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

2160p@30fps, 1080p@30fps
Primary camera flash

LED flash

dual-LED flash
Primary camera phase detection autofocus

-

dual pixel phase detection autofocus
Camera features

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

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

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
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

Yes

Yes
USB

Type-C 1.0 reversible connector

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

Yes

Yes
Bluetooth

v5.1

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

Yes

Yes
QZSS

Yes

-