Digma Citi 7591 3G vs Samsung Galaxy S21 Ultra 5G

Digma Citi 7591 3G

Samsung Galaxy S21 Ultra 5G

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, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

-

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G network

-

5G band SA/NSA/Sub6/mmWave
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
LTE speed

-

LTE-A (CA), 2000 Mbps download, 200 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Glass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
SIM

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

Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
Height

108 mm

165.1 mm
Width

189 mm

75.6 mm
Thickness

11 mm

8.9 mm
Weight

280 g

227 (Sub6) / 229 (mmWave) g
Payment

-

Samsung Pay (Visa, MasterCard certified)
Waterproof

-

IP68 (1.5m and 30 mins)
Dust proof

-

IP68
Colors

Black

Black, Brown, Silver, Navy, Titanium

Display
Display type

IPS capacitive touchscreen

Dynamic AMOLED 2X
Physical size

7 inches

6.8 inches
Resolution

1280 x 800 pixels

1440 x 3200 pixels
Pixel density

216 ppi

515 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, Corning Gorilla Glass Victus
Multitouch

Yes

-
Display features

-

120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display
DxOMark display score

-

91

Main camera
Camera type

Single

Quad
Main camera

2 MP

108 MP, (wide) , f/1.8 , 26 mm, 1/1.33" , 0.8 µm
(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom
(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.24" , 1.22 µm, 3x optical zoom
(ultrawide) , 12 MP, f/2.2 , 13 mm, 1/2.55" , 1.4 µm
Primary camera resolution

1600 x 1200 pixels

12000 x 9000 pixels
Primary camera video

720p@30fps

8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
Primary camera flash

LED flash

LED flash
Camera features

Continuous shooting, digital zoom, geotagging, panorama, HDR, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene mode

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

-

128
DxOMark zoom

-

76
DxOMark video

-

98
DxOMark camera score

-

121

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, 802.11ax, 6E
WLAN WiFi Hotspot

-

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C 3.2
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
BDS

-

Yes