Digma Optima 7018N 4G vs Xiaomi Redmi 7
Digma Optima 7018N 4G
Xiaomi Redmi 7
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 1900HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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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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Status2018-42019-3
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Oficially announced2018-42019-3
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Design
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BuildPlasticPlastic, P2i nano hydrophobic coating
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SIMDual SIM (Micro-SIM/Mini-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height109 mm158.7 mm
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Width190 mm75.6 mm
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Thickness9.2 mm8.5 mm
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Weight270 g180 g
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ColorsBlackBlack, Blue, Red
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Display
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Display typeIPSIPS LCD capacitive touchscreen
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Physical size7 inches6.26 inches
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Resolution1024 x 600 pixels720 x 1520 pixels
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Pixel density170 ppi269 ppi
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Display colors1677721616777216
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Protection-Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5, LTPS (Low Temperature PolySilicon)
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.0 GHz Cortex-A53Quad-core 1.8 GHz Kryo 250 Gold
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CPU(second)quad-core 1.8 GHz Kryo 250 Silver
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ChipsetMediaTek MT8735VQualcomm SDM632 Snapdragon 632
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GPUMali-T720 MP2Adreno 506
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Internal storage16 GB16, 32, 64 GB
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Memory RAM2 GB2, 3, 4 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max64 GB512 GB
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Storage-eMMC 5.1
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OS
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OSAndroid 7.0 NougatAndroid 9.0 (Pie), MIUI 9
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Main camera
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Camera type-Dual
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Main camera2 MP12 MP, f/2.2 , 1.25 µm
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2 MP
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Primary camera resolution1600 x 1200 pixels4032 x 3024 pixels
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Primary camera video720p@30fps1080p@30/60fps
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Primary camera flash-dual-LED flash
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Primary camera phase detection autofocus-phase detection with Dual Pixel
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Camera featuresContinuous shooting, digital zoom, geotagging, HDR, scene modeAutofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, RAW
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Selfie camera
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Selfie camera0.31 MP8 MP
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Selfie camera resolution640 x 480 pixels3264 x 2448 pixels
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Selfie camera video480p@30fps MP1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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Radio-FM Radio
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Radio FMFM 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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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.0v4.2
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Infrared-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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Beidou-Yes
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Features
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SensorsAccelerometerAccelerometer, compass, fingerprint, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Po
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Battery capacity2500 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Talk time 2G-27 h
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Talk time 3G-27 h
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Standby time 2G-400 h
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Standby time 3G-400 h