Digma Optima 1022N 3G vs Samsung Galaxy M51

Digma Optima 1022N 3G

Samsung Galaxy M51

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 900, 2100

HSDPA 850, 900, 1700(AWS), 1900, 2100
4G network

-

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

-

LTE-A, (2CA) Cat6, 400 Mbps download, 50 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Glass front (Gorilla Glass 3), plastic back, plastic frame
SIM

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

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

172 mm

163.9 mm
Width

244 mm

76.3 mm
Thickness

9.2 mm

9.5 mm
Weight

520 g

213 g
Colors

Black

Black, Blue

Main camera
Camera type

-

Quad
Main camera

2 MP

64 MP, (wide) , f/1.8 , 26 mm, 1/1.73" , 0.8 µm
(ultrawide) , 12 MP, f/2.2 , 123˚ , 1.12 µm
(macro) , 5 MP, f/2.4
(depth) , 5 MP, f/2.4 , 1.12 µm
Primary camera resolution

1600 x 1200 pixels

9280 x 6944 pixels
Primary camera video

720p@30fps

4K@30fps, 1080p@30fps
Primary camera flash

LED

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, 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 autofocus

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
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes