Digma Optima Prime 4 3G vs Samsung Galaxy A21s

Digma Optima Prime 4 3G
Digma Optima Prime 4 3G
Samsung Galaxy A21s
Samsung Galaxy A21s
Digma Optima Prime 4 3G
Samsung Galaxy A21s
  • Network
  • 2G network
    GSM 900, 1800
    GSM 850, 900, 1800, 1900
  • 3G network
    HSDPA 1900
    HSDPA 850, 900, 1900, 2100
  • 4G network
    -
    LTE frequency band 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41
  • HSDPA speed
    -
    42.2 Mbps
  • HSUPA speed
    -
    5.76 Mbps
  • LTE speed
    -
    LTE, Cat4, 151 Mbps download, 51 Mbps upload
  • GPRS
    Yes
    Yes
  • EDGE
    Yes
    Yes
  • Availability
  • Oficially announced
    2018-4
    2020-05
  • Status
    2018-4
    2020-06
  • Design
  • Build
    Plastic
    Plastic
  • SIM
    Dual SIM (Micro-SIM/Mini-SIM, dual stand-by)
    Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)
  • Height
    107.8 mm
    163.7 mm
  • Width
    188 mm
    75.3 mm
  • Thickness
    10 mm
    8.9 mm
  • Weight
    270 g
    192 g
  • Colors
    Black
    Black, Blue, Red, White
  • Display
  • Display type
    TN
    PLS TFT capacitive touchscreen
  • Physical size
    7 inches
    6.5 inches
  • Resolution
    1024 x 600 pixels
    720 x 1600 pixels
  • Pixel density
    170 ppi
    270 ppi
  • Display colors
    16777216
    16777216
  • Multitouch
    Yes
    -
  • Hardware
  • CPU
    -
    Octa-core
  • CPU
    Quad-core 1.2 GHz Cortex-A7
    Quad-core 2.0 GHz Cortex-A55
  • CPU(second)
    quad-core 2.0 GHz Cortex-A55
  • Chipset
    Spreadtrum SC7731C
    Exynos 850
  • GPU
    Mali-400 MP1
    Mali-G52
  • Memory RAM
    1 GB
    3, 4, 6 GB
  • Internal storage
    8 GB
    32, 64 GB
  • Memory card
    microSD, microSDHC, microSDXC
    microSD, microSDHC, microSDXC
  • Memory card max
    64 GB
    512 GB
  • OS
  • OS
    Android 7.0 Nougat
    One UI 2.0(Android 10)
  • Selfie camera
  • Selfie camera
    0.31 MP
    13 MP, f/2.2 , 1/3.1" , 1.12 µm
  • Selfie camera resolution
    640 x 480 pixels
    4160 x 3120 pixels
  • Selfie camera video
    480p@30fps MP
    1080p@30fps
  • Sound
  • 3.5mm jack
    Yes
    Yes
  • Loudspeaker
    Yes
    Yes
  • Earpiece
    Yes
    Yes
  • Multimedia
  • Radio
    FM Radio
    -
  • Connectivity
  • WLAN
    Wi-Fi 802.11b, 802.11g, 802.11n
    Wi-Fi 802.11b, 802.11g, 802.11n
  • WLAN WiFi Hotspot
    -
    Yes
  • WLAN WiFi Direct
    -
    Yes
  • WLAN WiFi Dual Band
    -
    Yes
  • USB
    microUSB 2.0
    Type-C 1.0 reversible connector
  • Bluetooth
    v4.0
    v5.0
  • Bluetooth A2DP
    Yes
    Yes
  • bluetooth LE
    -
    Yes
  • NFC
    -
    Yes (market dependent)
  • GPS
    Yes, with A-GPS
    Yes, with A-GPS
  • GLONASS
    -
    Yes
  • GALILEO
    -
    Yes
  • Beidou
    -
    Yes
  • Features
  • Sensors
    Accelerometer
    Accelerometer, fingerprint, geomagnetic, gyroscope, proximity
  • Browser
  • HTML
    HTML5
    HTML5
  • Battery
  • Battery type
    Li-Po
    Li-Po
  • Battery capacity
    2200 mAh
    5000 mAh
  • Battery removable
    Non-removable
    Non-removable
  • Fast battery charging
    -
    Yes
  • Main camera
  • Camera type
    -
    Quad
  • Main camera
    48 MP, f/2.0 , 26 mm, 1/2.0" , 0.8 µm
  • 8 MP, f/2.2 , 1/4.0" , 1.12 µm
  • 2 MP, f/2.4
  • 2 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

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