Digma Optima Prime 4 3G vs Samsung Galaxy A31
Digma Optima Prime 4 3G
Samsung Galaxy A31
-
Network
-
2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
-
3G networkHSDPA 1900HSDPA 850, 900, 1900, 2100
-
4G network-LTE frequency band 1(2100), 5(850), 7(2600), 8(900), 25(1900)
-
HSDPA speed-42.2 Mbps
-
HSUPA speed-5.76 Mbps
-
LTE speed-LTE, Cat10, 452 Mbps download, 102 Mbps upload
-
GPRSYesYes
-
EDGEYesYes
-
Availability
-
Oficially announced2018-42020-03
-
Status2018-42020-04
-
Design
-
BuildPlasticPlastic
-
SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
-
Height107.8 mm159.3 mm
-
Width188 mm73.1 mm
-
Thickness10 mm8.6 mm
-
Weight270 g185 g
-
ColorsBlackBlack, Blue, Red, White
-
Display
-
Display typeTNSuper AMOLED capacitive touchscreen
-
Physical size7 inches6.4 inches
-
Resolution1024 x 600 pixels1080 x 2400 pixels
-
Pixel density170 ppi411 ppi
-
Display colors1677721616777216
-
Protection-Scratch resistant, 2.5D curved glass screen
-
MultitouchYesYes
-
Hardware
-
CPU-Octa-core
-
CPUQuad-core 1.2 GHz Cortex-A7Dual-core 2.2 GHz Cortex-A75
-
CPU(second)Hexa-core 1.7 GHz Cortex-A55
-
ChipsetSpreadtrum SC7731C-
-
GPUMali-400 MP1-
-
Memory RAM1 GB4, 6 GB
-
Internal storage8 GB64, 128 GB
-
Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
-
Memory card max64 GB512 GB
-
Storage-eMMC 5.1
-
OS
-
OSAndroid 7.0 NougatAndroid 10.0; One UI 2.0
-
Selfie camera
-
Selfie camera0.31 MP20 MP, f/2.2
-
Selfie camera resolution640 x 480 pixels-
-
Selfie camera video480p@30fps MP1080p@30fps
-
Sound
-
3.5mm jackYesYes
-
LoudspeakerYesYes
-
EarpieceYesYes
-
Multimedia
-
RadioFM Radio-
-
Connectivity
-
WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
-
WLAN WiFi Hotspot-Yes
-
WLAN WiFi Direct-Yes
-
WLAN WiFi Dual Band-Yes
-
USBmicroUSB 2.0Type-C 1.0 reversible connector
-
USB On-The-Go-Yes
-
Bluetoothv4.0v5.0
-
Bluetooth A2DPYesYes
-
bluetooth LE-Yes
-
GPSYes, with A-GPSYes, with A-GPS
-
GLONASS-Yes
-
GALILEO-Yes
-
Beidou-Yes
-
Features
-
SensorsAccelerometerAccelerometer, compass, fingerprint, gyroscope, proximity
-
Browser
-
HTMLHTML5HTML5
-
Battery
-
Battery typeLi-PoLi-Po
-
Battery capacity2200 mAh5000 mAh
-
Battery removableNon-removableNon-removable
-
Fast battery charging-Yes
-
Main camera
-
Camera type-Quad
-
Main camera48 MP, f/2.0 , 1/2.0" , 0.8 µm
-
8 MP, f/2.2 , 13 mm, 1/4.0" , 1.12 µm
-
5 MP, f/2.4
-
5 MP, f/2.4
-
Primary camera resolution-8000 x 6000 pixels
-
Primary camera video-1080p@30fps
-
Primary camera flash-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
-
Cost
-
Price-200 USD
