ZTE Quartz vs vivo NEX 3

Network
2G network

GSM 850, 1900

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

HSDPA 850, 1700(AWS), 1900, 2100

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

-

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 17(700), 18(800), 19(800), 20(800), 26(850), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
HSPA speed

HSPA

-
LTE speed

-

LTE-A (5CA), Cat18, 1200 Mbps download, 150 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

AMOLED capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

1.4 inches

6.89 inches
Resolution

400 x 400 pixels

1080 x 2256 pixels
Pixel density

404 ppi

363 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant, 3D curved glass screen
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.1 GHz

Single-core 2.96 GHz Kryo 485
CPU(second)

Triple-core 2.42 GHz Kryo 485
CPU(third)

Quad-core 1.8 GHz Kryo 485
Chipset

Qualcomm MSM8909W Snapdragon Wear 2100

Qualcomm SDM855 Snapdragon 855+
GPU

-

Adreno 640
Internal storage

4 GB

256 GB
Memory RAM

768 MB

8 GB
Memory card

No
Storage

-

UFS 3.0

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
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

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

-

Yes
Bluetooth

v4.1

v5.0
Bluetooth A2DP

-

Yes
bluetooth LE

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes

Features
Messaging SMS

SMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Java

No

-
Sensors

Accelerometer, barometer, gyro

Accelerometer, compass, fingerprint, gravity, gyroscope, light, proximity, in-display fingerprint sensor

Main camera
Camera type

-

Triple
Main camera

64 MP, f/1.8 , 1/1.7" , 0.8 µm
13 MP, f/2.5 , 13 mm
13 MP, f/2.2
Primary camera video

-

2160p@30fps, 1080p@30/60/120fps, 720p@960fps, gyro-EIS
Primary camera flash

-

LED flash
Camera features

-

Autofocus, continuous shooting, digital zoom, optical 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