DEXP T155 vs vivo Z3

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 7(2600)

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE, Cat15, 798 Mbps download, 226 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic, metal

Aluminium alloy, glass
SIM

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

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

163 mm

156 mm
Width

76.6 mm

75.6 mm
Thickness

13.9 mm

8.1 mm
Weight

270 g

164 g
Waterproof

Yes, IP68

-
Dust proof

Yes, IP68

-
Colors

Black, Gold

Blue, Black, Pink

Display
Display type

IPS

IPS LCD capacitive touchscreen
Physical size

5.5 inches

6.3 inches
Resolution

720 x 1440 pixels

1080 x 2280 pixels
Pixel density

293 ppi

400 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Dragontrail glass, Oleophobic(lipophobic) coating

2.5D curved glass screen
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Quad-core 1.5 GHz Cortex-A53

Dual-core 2.0 / 2.2 GHz Kryo 360 Gold
CPU(second)

Hexa-core 1.7 / 2.2 GHz Kryo 360 Silver
Chipset

Mediatek MT6739

Qualcomm SDM670 Snapdragon 670 / Qualcomm SDM710 Snapdragon 710
GPU

PowerVR GE8100

Adreno 615 / Adreno 616
Memory RAM

2 GB

4, 6 GB
Internal storage

16 GB

64, 128 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

128 GB

256 GB

Main camera
Camera type

Dual

Dual
Main camera

8 MP

16 MP, f/2.0
8 MP

2 MP, f/2.4
Interpolated resolution

13 MP

-
Primary camera resolution

3264 x 2448 pixels

4608 x 3456 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED

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, 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
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.1

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
Bluetooth EDR

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
Beidou

-

Yes

Features
Sensors

Accelerometer, compass, fingerprint, light, proximity

Accelerometer, compass, fingerprint, gyroscope, infrared face recognition, light, proximity