BLU C6L 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, 1700(AWS), 1900, 2100 - C0030UU; HSDPA 850, 900, 1900, 2100 - C0030LL

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

LTE frequency band 2(1900), 4(1700/2100), 5(850), 7(2600), 12(700), 17(700) - C0030UU; LTE frequency band 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 28(700) - C0030LL

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, Cat4, 150 Mbps download, 50 Mbps upload

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Aluminium alloy, glass
SIM

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

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

154.4 mm

154.1 mm
Width

78.6 mm

73.3 mm
Thickness

10.4 mm

8.4 mm
Weight

203 g

181 g
Colors

Black, Blue, Gold

Black, Blue, Gray

Display
Display type

IPS capacitive touchscreen

LTPS IPS LCD capacitive touchscreen
Physical size

5.5 inches

6.26 inches
Resolution

720 x 1280 pixels

1080 x 2280 pixels
Pixel density

267 ppi

403 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen

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

Main camera
Camera type

-

Dual
Main camera

8 MP

24 MP, f/1.8
24 MP, f/1.7
Primary camera resolution

3264 x 2448 pixels

4608 x 3456 pixels
Primary camera video

1080p@30fps

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

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 802.11b, 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
USB

microUSB 2.0

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

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes