Digma Citi Power 4G vs vivo Y31
Digma Citi Power 4G
vivo Y31
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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, 900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 7(2600)-
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HSPA speed-HSPA
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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 announced20172015-9
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Status20172015-10
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM
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Height153 mm137.2 mm
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Width77 mm68.8 mm
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Thickness9.3 mm8.4 mm
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Weight220 g137 g
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ColorsBlackBlack, White
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Display
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Display typeIPS capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5.5 inches4.7 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density267 ppi312 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen-
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7Quad-core 1.3 GHz
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ChipsetSpreadtrum SC9832Mediatek MT6580
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GPUMali-T400 MP2-
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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 max-128 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 camera8 MP8 MP
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Primary camera resolution3264 x 2448 pixels3264 x 2448 pixels
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Primary camera video720p@30fpsvideo
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Primary camera flashLEDLED flash
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Camera featuresAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, exposure compensation, self-timer, scene modeGeo-tagging, HDR, touch focus
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Selfie camera
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Selfie camera5 MP2 MP
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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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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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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 Mail-Push Mail
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Java-No
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SensorsAccelerometr, fingerprint, light, proximityAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity4000 mAh2100 mAh
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Battery removableRemovable-
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Talk time--
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Standby time--
