Acer Iconia B1-721 vs ZTE Grand Memo V9815
Acer Iconia B1-721
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 networkHSDPAHSDPA 900, 2100
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4G network-LTE 800, 900, 1800, 2600
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HSDPA speedHSDPAHSDPA
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HSUPA speedHSUPAHSUPA
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LTE speed-LTE, 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 announced2014-12013-2
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Status2014-12013-3
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Design
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SIMYesYes
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Height199 mm159.9 mm
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Width122.3 mm82.6 mm
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Thickness11.4 mm8.5 mm
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Weight323 g189 g
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ColorsBlack/RedBlack
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size7.0 inches5.7 inches
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Resolution600 x 1024 pixels720 x 1280 pixels
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Pixel density170 ppi258 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.3 GHzQuad-core 1.7 GHz Krait 400
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ChipsetMediatek MT8312Qualcomm MSM8974 Snapdragon 800
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GPUMali-400Adreno 330
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Memory RAM1 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, v4.2 (Jelly Bean)Android OS, v4.1.2 (Jelly Bean)
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Main camera
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Main camera13 MP
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Primary camera resolution640 x 480 pixels4128 x 3096 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraNo-
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Selfie camera1 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration; MP3 ringtones
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Multimedia
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RadioNo-
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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 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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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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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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bluetooth LE-Yes
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GPSYesYes, 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 EmailEmailEmail
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Messaging IMIMIM
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Messaging Push EmailPush EmailPush Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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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 capacity2955 mAh3200 mAh
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Battery removable-Non-removable
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Talk time--
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Standby time--