Digma Plane 7557 4G vs Plum Optimax 8.0
Digma Plane 7557 4G
Plum Optimax 8.0
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600)-
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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LTE speedLTE, 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 announced2018-12016-3
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Status2018-12016-4
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Design
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BuildPlastic-
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Dual SIM (Micro-SIM, dual stand-by)
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Height108 mm210.6 mm
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Width188 mm121.7 mm
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Thickness10 mm8.7 mm
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Weight275 g305 g
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ColorsBlackBlack, White
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Display
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Display typeIPSIPS LCD capacitive touchscreen
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Physical size7 inches8.0 inches
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Resolution1024 x 600 pixels800 x 1280 pixels
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Pixel density170 ppi189 ppi
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Display colors1677721616777216
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MultitouchYesYes, max 5 fingers
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Hardware
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CPUQuad-core 1.5 GHz Cortex-A7Quad-core 1.3 GHz Cortex-A7 ARM
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ChipsetSpreadtrum SC9832Mediatek MT6580
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GPUMali-400 MP2Mali-400
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Memory RAM2 GB1 GB
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Internal storage16 GB8 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD
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Memory card max64 GB32 GB
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OS
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OSAndroid 7.0 NougatAndroid OS, v5.1 (Lollipop)
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Main camera
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Main camera2 MP5 MP
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Primary camera resolution1600 x 1200 pixels-
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Primary camera video720p@30fps720p@30fps
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Primary camera flashLED-
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Camera featuresContinuous shooting, digital zoom, geotagging, HDR, face detection, scene modeGeo-tagging, HDR, face detection, panorama
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Selfie camera
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Selfie camera0.31 MP2 MP
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Selfie camera resolution640 x 480 pixels-
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Selfie camera video480p@30fps MP-
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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Notifications-Vibration; MP3, WAV ringtones
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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 Hotspot-Yes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.02.0
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Bluetoothv4.0v4.0
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Email-Push Email
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Java-No
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SensorsAccelerometerAccelerometer, gyro, proximity
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity4000 mAh3400 mAh
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Battery removableNon-removableNon-removable
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Talk time 2G-24 h
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Talk time 3G-14 h
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Standby time 2G-875 h
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Standby time 3G-775 h