Assistant AS-5421 Surf vs Asus Zenfone Go ZB551KL
Assistant AS-5421 Surf
Asus Zenfone Go ZB551KL
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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 900, 2100HSDPA 850, 900, 1900, 2100
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4G network-LTE frequency band 1(2100), 2(1900), 3(1800), 5(850), 7(2600), 8(900), 20(800)
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2017-122016-4
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Status2017-122016-5
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Design
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BuildPlastic, metal-
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SIMDual SIM (Micro-SIM, dual SIM stand-by)Dual SIM (Micro-SIM, dual stand-by)
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Height146 mm151 mm
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Width73 mm76.9 mm
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Thickness9.4 mm10.7 mm
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Weight-160 g
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ColorsBlue, Gold, BlackCharcoal Black, Floral Pink, Glacier Gray, Glamour Red, Lake Blue, Pearl White, Sheer Gold, Silver Blue
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Display
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Display typeIPS capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size5 inches5.5 inches
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Resolution540 x 960 pixels720 x 1280 pixels
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Pixel density220 ppi267 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass 3
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MultitouchYesYes
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Hardware
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CPUQuad-core 1.3 GHz Cortex-A7Quad-core 1.6 GHz Cortex-A7 ARM
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ChipsetSpreadtrum SC7731GQualcomm MSM8928 Snapdragon 400
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GPUMali-400 MP2Adreno 305
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Memory RAM1 GB2 GB
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Internal storage8 GB16, 32 GB
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Memory cardmicroSD, microSDHCmicroSD
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Memory card max32 GB64 GB
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OS
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OSAndroid 6.0 MarshmallowAndroid OS, v5.1 (Lollipop)
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Main camera
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Camera typeSingle-
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Main camera5 MP13 MP, f/2.0
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Primary camera resolution2592 x 1944 pixels-
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Primary camera video720p@30fps1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashdual-LED (dual tone) flash
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-modeGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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FlashLED flash-
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Selfie camera2 MP5 MP, f/2.0
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Selfie camera resolution1600 x 1200 pixels-
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Selfie camera video480p@30fps-
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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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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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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v4.0
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Bluetooth A2DPYesYes
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Bluetooth EDR-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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BDS-Yes
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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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SensorsAccelerometer, proximity, lightAccelerometer, proximity
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity1700 mAh3010 mAh
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Battery removableRemovableRemovable
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Talk time 3G-16 h
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Standby time 3G-335 h
