Asus Zenfone Zoom ZX551ML vs HTC Desire 728 dual sim
Asus Zenfone Zoom ZX551ML
HTC Desire 728 dual sim
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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 850, 900, 1900, 2100
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE, Cat4+, 250 Mbps download, 50 Mbps uploadLTE, 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 announced2015-92015-9
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Status2015-102015-11
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Design
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SIMMicro-SIMDual SIM (Nano-SIM, dual stand-by)
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Height158.9 mm157.9 mm
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Width78.8 mm77.8 mm
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Thickness12 mm7.9 mm
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Weight185 g153 g
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ColorsCeramic White, Pure BlackDiamond white, Graphite black
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Display
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Display typeIPS capacitive touchscreenCapacitive touchscreen
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Physical size5.5 inches5.5 inches
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Resolution1080 x 1920 pixels720 x 1280 pixels
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Pixel density401 ppi267 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-coreOcta-core 1.3 GHz ARM Cortex-A53
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ChipsetIntel AtomMediatek MT6753
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GPUPowerVR G6430Mali-T720MP3
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Memory RAM4 GB2 GB
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Internal storage32, 64, 128 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB200 GB
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OS
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OSAndroid OS, v5.0 (Lollipop)Android OS, v5.1.1 (Lollipop)
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Main camera
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Main camera13 MP, 3x optical zoom13 MP
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Primary camera resolution4128 x 3096 pixels4128 x 3096 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashdual-LED (dual tone) flashLED flash
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Primary camera image stabilizationoptical image stabilization-
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Primary camera laser autofocuslaser autofocus-
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera5 MP5 MP
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Selfie camera video-1080p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes, with stereo speakers
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NotificationsVibration; MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v4.1
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Bluetooth A2DPYesYes
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Bluetooth EDRYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GPS NavigatorBeidou-
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMSMMSMMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push EmailPush EmailPush Email
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JavaNoNo
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SensorsAccelerometer, compass, gyro, proximityAccelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3000 mAh2800 mAh
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Battery removableNon-removableNon-removable
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Talk time--
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Talk time 2G-26 h
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Talk time 3G-21 h
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Standby time--
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Standby time 2G-496 h
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Standby time 3G-485 h
