HTC Desire 820s dual sim vs ZTE Grand Memo V9815
HTC Desire 820s dual sim
ZTE Grand Memo V9815
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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 800, 900, 1800, 2600
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HSDPA speed42.2 MbpsHSDPA
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HSUPA speed5.76 MbpsHSUPA
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps uploadLTE, Cat3, 100 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 announced2015-32013-2
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Status2015-32013-3
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Design
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SIMDual SIM (Nano-SIM, dual stand-by)Yes
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Height157.7 mm159.9 mm
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Width78.7 mm82.6 mm
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Thickness7.7 mm8.5 mm
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Weight155 g189 g
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ColorsMarble White, Milkyway Gray, Monarch Orange, Santorini White, Tuxedo GrayBlack
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Display
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Display typeCapacitive touchscreenTFT capacitive touchscreen
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Physical size5.5 inches5.7 inches
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Resolution720 x 1280 pixels720 x 1280 pixels
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Pixel density267 ppi258 ppi
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Display colors1677721616777216
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Hardware
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CPUOcta-core 1.7 GHz ARM Cortex-A53Quad-core 1.7 GHz Krait 400
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ChipsetMediatek MT6752Qualcomm MSM8974 Snapdragon 800
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GPUMali-T760MP2Adreno 330
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Memory RAM2 GB2 GB
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Internal storage16 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v4.4.4 (KitKat)Android OS, v4.1.2 (Jelly Bean)
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Main camera
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Main camera13 MP13 MP
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Primary camera resolution4160 x 3120 pixels4128 x 3096 pixels
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focus-
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Selfie camera
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Selfie camera8 MP1 MP
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Selfie camera video1080p-
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration; MP3, WAV ringtonesVibration; 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, 802.11nWi-Fi 802.11a, 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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WLAN WiFi Dual Band-Yes
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WLAN DLNA-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 LE-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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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 IM-IM
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Messaging Push EmailPush EmailPush Email
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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer, 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 capacity2600 mAh3200 mAh
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Battery removableNon-removableNon-removable
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Talk time--
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Talk time 3G12 h 10 min-
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Standby time--
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Standby time 3G560 h-
