Digma Optima 8027 3G vs Fairphone 4
Digma Optima 8027 3G
Fairphone 4
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G network-LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 38, 40, 41, 71
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5G network-5G band 1, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78 SA/NSA/Sub6
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE-A (4CA), Cat18, 1200 Mbps download, 150 Mbps upload
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5G speed-2.3 Gbps download
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2019-42021-09
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Status2019-42021-09
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Design
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BuildPlasticGlass front (Gorilla Glass 5), plastic back, plastic frame
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height123 mm162 mm
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Width208 mm75.5 mm
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Thickness10 mm10.5 mm
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Weight320 g225 g
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Waterproof-IP54
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Dust proof-IP54
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MIL-STD-810G-Yes
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ColorsBlackGray, Green, Speckled Green
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Display
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Display typeIPSIPS LCD
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Physical size8 inches6.3 inches
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Resolution1280 x 800 pixels1080 x 2340 pixels
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Pixel density189 ppi409 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, Corning Gorilla Glass 5
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MultitouchYes-
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 GHz Cortex-A7Dual-core 2.2 GHz Kryo 570
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CPU(second)Hexa-core 1.8 GHz Kryo 570
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ChipsetSpreadtrum SC7731EQualcomm SM7225 Snapdragon 750G 5G
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GPUMali-T820 MP1Adreno 619
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Memory RAM1 GB6, 8 GB
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Internal storage16 GB128, 256 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max128 GB2 TB
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OS
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OSAndroid 8.1 Oreo Go EditionAndroid 11
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Main camera
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Camera type-Triple
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Main camera2 MP48 MP, (wide) , f/1.6 , 1/2.0" , 0.8 µm, 8x digital zoom
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(ultrawide) , 48 MP, f/2.2 , 120˚ , 1/2.0" , 0.8 µm
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TOF 3D
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Primary camera resolution1600 x 1200 pixels8000 x 6000 pixels
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Primary camera video720p@30fps4K@30fps, 1080p@30/60fps, gyro-EIS
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Primary camera flash-dual-LED dual-tone flash
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Camera featuresContinuous shooting, digital zoom, geotagging, HDR, white balance settings, scene modeAutofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, scene-mode, phase detection autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera0.31 MP25 MP, (wide) , f/2.2 , 1/2.78" , 0.9 µm
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Selfie camera resolution640 x 480 pixels-
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Selfie camera features-Digital image stabilization, face detection, face unlock, HDR
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Selfie camera video480p@30fps MP1080p@30fps, gyro-EIS
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 3.0, DisplayPort
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Bluetoothv4.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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BDS-Yes
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Features
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SensorsAccelerometerAccelerometer, compass, fingerprint, gyroscope, 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 mAh3905 mAh
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Battery removableNon-removableRemovable
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Fast battery charging-Quick Charge, 20W (50% in 30 min)
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Talk time 3G-30 h
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Talk time 4G-13 h
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Standby time 4G-200 h
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Tests and performance
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Antutu-385000 (v9)
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Geekbench(single-core)-642 (v5.4)
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Geekbench(multi-core)-1878 (v5.4)
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SAR value
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SAR EU(head)-0.49 W/kg
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SAR EU(body)-0.99 W/kg
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Cost
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Price-670 USD
