Acer Iconia B1-721 vs Maxwest Astro X4
Acer Iconia B1-721
Maxwest Astro X4
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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 850, 1700(AWS), 1900
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HSDPA speedHSDPA21.1 Mbps
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HSUPA speedHSUPA5.76 Mbps
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GPRSYesClass 12
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EDGEYesClass 12
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Availability
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Oficially announced2014-12016-1
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Status2014-12016-2
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Design
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SIMYesDual SIM (dual stand-by)
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Height199 mm123.5 mm
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Width122.3 mm64 mm
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Thickness11.4 mm9.8 mm
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Weight323 g122 g
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ColorsBlack/RedBlack, Blue, Gold, Pink, White
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Display
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Display typeTFT capacitive touchscreenCapacitive touchscreen
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Physical size7.0 inches4.0 inches
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Resolution600 x 1024 pixels480 x 800 pixels
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Pixel density170 ppi233 ppi
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Display colors-16777216
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Multitouch-Yes
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Hardware
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CPUDual-core 1.3 GHzDual-core 1.0 GHz ARM Cortex-A7
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ChipsetMediatek MT8312Mediatek MT6572M
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GPUMali-400Mali-400
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Internal storage16 GB4 GB
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Memory RAM1 GB512 MB
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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, v4.4 (KitKat)
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Main camera
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Main camera3.15 MP
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Primary camera resolution640 x 480 pixels-
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Primary camera videovideo720p
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Primary camera flash-LED flash
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Camera features-Geo-tagging, touch focus
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Selfie camera
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Flash-LED flash
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Secondary cameraNoVGA
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsN/AVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-Stereo 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 Hotspot-Yes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.0
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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 Email-
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, 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 capacity2955 mAh1400 mAh
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Battery removable-Removable
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Talk time-8 h
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Standby time-180 h
