Digma Optima 8027 3G vs Prestigio Grace 3157 4G
Digma Optima 8027 3G
Prestigio Grace 3157 4G
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 900, 2100
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4G network-LTE frequency band 3(1800), 7(2600), 18(800)
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HSDPA speed-21 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 51 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-42017
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Status2019-42017
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Design
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BuildPlasticMetal, plastic
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Dual SIM (Micro-SIM, dual stand-by)
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Height123 mm109 mm
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Width208 mm187 mm
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Thickness10 mm9.9 mm
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Weight320 g460 g
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ColorsBlackBlack
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Display
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Display typeIPSIPS capacitive touchscreen
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Physical size8 inches7 inches
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Resolution1280 x 800 pixels1280 x 720 pixels
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Pixel density189 ppi210 ppi
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Display colors1677721616777216
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MultitouchYesYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.1 GHz Cortex-A53
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ChipsetSpreadtrum SC7731EMediaTek MT8735D
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GPUMali-T820 MP1Mali-T720 MP2
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Memory RAM1 GB1 GB
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Internal storage16 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC
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Memory card max128 GB32 GB
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OS
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OSAndroid 8.1 Oreo Go EditionAndroid OS, v7.0 Nougat
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Main camera
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Main camera2 MP2 MP
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Primary camera resolution1600 x 1200 pixels1600 x 1200 pixels
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Primary camera video720p@30fps480p@30fps
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Camera featuresContinuous shooting, digital zoom, geotagging, HDR, white balance settings, scene modeDigital zoom, panorama, HDR, face detection, self-timer, scene-mode
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Selfie camera
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Selfie camera0.31 MP0.3 MP
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Selfie camera resolution640 x 480 pixels640 x 480 pixels
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Selfie camera video480p@30fps MP480p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYes-
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Multimedia
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RadioFM Radio-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.2v4.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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Features
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SensorsAccelerometerAccelerometer, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3500 mAh2800 mAh
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Battery removableNon-removableNon-removable
