UMIDIGI A3 Pro vs alcatel X1

UMIDIGI A3 Pro

alcatel X1

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

HSDPA 850, 900, 1900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 18(800), 39(1900); LTE-TDD 2300, 2500, 2600 MHz

LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800)
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE, Cat4, 150 Mbps download, 50 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, plastic

Corning Gorilla Glass back panel
SIM

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

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

147.2 mm

145 mm
Width

70.2 mm

69.2 mm
Thickness

8.5 mm

7 mm
Weight

187 g

140 g
Colors

Gray, Gold

Black, White

Main camera
Camera type

Dual

-
Main camera

12 MP, f/2.0 , 1.25 µm

13 MP, f/2.2
5 MP
Primary camera resolution

4032 x 3024 pixels

-
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

-

autofocus
Primary camera flash

dual-LED flash

dual-LED (dual tone) 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

1.12 µm pixel size, 1/3" sensor size, HDR, face detection, geo-tagging, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz

Wi-Fi 802.11b, 802.11g, 802.11n
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

v4.0

v4.0
Bluetooth A2DP

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
Beidou

Yes

-

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Mail

-

Push Mail
Java

-

No
Sensors

Accelerometer, compass, fingerprint, gyroscope, light, proximity

Accelerometer, compass, proximity