Realme 6 Pro vs ZTE nubia X

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 850, 900, 2100

HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
4G network

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

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

11.5 Mbps

5.76 Mbps
LTE speed

LTE-A (2CA), Cat6, 300 Mbps download, 150 Mbps upload

LTE-A (6CA), Cat18, 1200 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS LCD capacitive touchscreen

LTPS IPS LCD capacitive touchscreen
Physical size

6.6 inches

6.26 inches
Resolution

1080 x 2400 pixels

1080 x 2280 pixels
Pixel density

399 ppi

403 ppi
Display colors

16777216

16777216
Protection

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

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

Yes

Yes
Secondary screen resolution

-

720 x 1520 pixels
Secondary screen physical size

-

5.1 inches
Secondary display

-

OLED
Secondary display protection

-

Corning Gorilla Glass 3

Hardware
CPU

Octa-core

Octa-core
CPU

Dual-core 2.3 GHz Kryo 465 Gold

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

Hexa-core 1.8 GHz Kryo 465 Silver

quad-core 1.8 GHz Kryo 385 Silver
Chipset

Qualcomm SM7125 Snapdragon 720G

Qualcomm SDM845 Snapdragon 845
GPU

Adreno 618

Adreno 630
Internal storage

64, 128 GB

64, 128, 256 GB
Memory RAM

6, 8 GB

6, 8 GB
Memory card

microSD, microSDHC, microSDXC

-
Storage

UFS 2.1

-

Main camera
Camera type

Quad

Dual
Main camera

64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm

24 MP, f/1.8
12 MP, f/2.5 , 54 mm, 1/3.4" , 1.0 µm, 2x optical zoom

24 MP, f/1.7
8 MP, f/2.3 , 13 mm, 1/4.0" , 1.12 µm
2 MP, f/2.4 , 22 mm, 1/5.0" , 1.75 µm
Primary camera resolution

9280 x 6944 pixels

4608 x 3456 pixels
Primary camera video

2160p@30fps, 1080p@30/60/120fps, gyro-EIS

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

LED flash

dual-LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

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, phase detection autofocus, UIS max video stabilization

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
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

-

Yes
BDS

Yes

-
NavIC

Yes

-