Asus Zenfone Go ZC451TG vs Energizer Energy E20
Asus Zenfone Go ZC451TG
Energizer Energy E20
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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 850, 900, 1900, 2100HSDPA 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 28(700)
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HSDPA speed21.1 Mbps-
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HSUPA speed5.76 Mbps-
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HSPA speed-HSPA
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LTE speed-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2015-122017-11
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Status2015-122017-11
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height135 mm103.2 mm
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Width67 mm51 mm
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Thickness10.1 mm18.2 mm
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Weight133.5 g92 g
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ColorsCharcoal Black, Flash Blue, Pearl White, Rouge PinkBlack
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Display
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Display typeIPS LCD capacitive touchscreenTFT
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Physical size4.5 inches2.4 inches
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Resolution480 x 854 pixels240 x 320 pixels
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Pixel density218 ppi167 ppi
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Display colors16777216262144
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MultitouchYes-
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7
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ChipsetMediatek MT6580M-
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GPUMali-400MP2-
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Memory RAM1 GB-
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Internal storage8 GB-
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Memory cardmicroSDmicroSD(uses second SIM slot)
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Memory card max64 GB16 GB
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Phonebook-Yes
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Call records-Yes
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OS
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OSAndroid OS, v5.1 (Lollipop)-
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Main camera
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Main camera5 MP, f/2.0
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Primary camera-VGA
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Primary camera video720p@30fpsno
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Camera featuresYesNo
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Selfie camera
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Secondary cameraVGA cameraNo
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration; Polyphonic, MP3 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, 802.11n
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v2.0
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Bluetooth A2DPYes-
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Bluetooth EDRYes-
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GPSYes, with A-GPSNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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JavaNoNo
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SensorsAccelerometer, compass, proximity-
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1600 mAh1000 mAh
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Battery removableRemovable-
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Talk time 3G11 h-
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Standby time 3G355 h-