Blackview BV9900 vs Digma Optima 7018N 4G

Blackview BV9900

Digma Optima 7018N 4G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 900, 1800
3G network

HSDPA 850, 900, 1700, 1900, 2100

HSDPA 1900
4G network

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), 25(1900), 26(850), 28(700), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500), 66(1700)

LTE frequency band 1(2100), 3(1800), 7(2600)
EV-DO speed

3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE, Cat6, 301 Mbps download, 51 Mbps upload

LTE, Cat4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Metal, polycarbonate, TPU

Plastic
SIM

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

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

-

109 mm
Width

-

190 mm
Thickness

-

9.2 mm
Weight

-

270 g
Waterproof

Yes, IP68, IP69K

-
Dust proof

Yes, IP68, IP69K

-
MIL-STD-810G

Yes

-
Colors

Black

Black

Main camera
Camera type

Quad

-
Main camera

48 MP, f/1.75 , 1/2" , 0.8 µm

2 MP
16 MP
5 MP
Primary camera resolution

8000 x 6000 pixels

1600 x 1200 pixels
Primary camera video

2160p@30fps

720p@30fps
Primary camera flash

dual-LED flash

-
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, macro-mode, night mode

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

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac

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

Type-C reversible connector

microUSB 2.0
USB On-The-Go

Yes

-
Bluetooth

v5.0

v4.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

-
Beidou

Yes

-

Features
Sensors

Accelerometer, altimeter, barometer, compass, fingerprint, geomagnetic, gyroscope, light, magnetometer, pedometer, proximity

Accelerometer