Digma Optima 7018N 4G vs UMIDIGI A3X

Digma Optima 7018N 4G

UMIDIGI A3X

Network
2G network

GSM 900, 1800

GSM 850, 900, 1800, 1900
3G network

HSDPA 1900

W-CDMA 850, 900, 1700, 1900, 2100
4G network

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

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(850), 19(850), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500)
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE Cat 4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Metal, glass
SIM

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

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

109 mm

147.2 mm
Width

190 mm

70.2 mm
Thickness

9.2 mm

8.7 mm
Weight

270 g

184 g
Colors

Black

Green, Grey

Main camera
Camera type

-

Dual
Main camera

2 MP

16 MP, f/2.0 , 0.26" , 1.132 µm
16 MP
5 MP
Primary camera resolution

1600 x 1200 pixels

4608 x 3456 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

-

dual LED flash
Camera features

Continuous shooting, digital zoom, geotagging, HDR, scene mode

Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection

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

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth HID

-

Yes
bluetooth LE

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes