Acer Iconia Tab A511 vs NIU C21A
Acer Iconia Tab A511
NIU C21A
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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, 2100-
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HSDPA speedHSDPA, 7.2 Mbps-
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HSUPA speedHSUPA, 5.76 Mbps-
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GPRSYesYes
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EDGEYes
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Availability
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Oficially announced2012-22013-3
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Status2012-82013-4
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Design
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SIMMini-SIMDual SIM (Mini-SIM)
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Height260 mm106 mm
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Width175 mm45 mm
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Thickness11 mm14.5 mm
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Weight777 g73 g
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ColorsBlack, SilverBlack, Blue, Fuchsia, Green, Purple, Red, White
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size10.1 inches1.8 inches
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Resolution1280 x 800 pixels128 x 160 pixels
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Pixel density149 ppi114 ppi
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Display colors262144262144
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A9
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ChipsetNvidia Tegra 3-
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GPUULP GeForce-
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Memory RAM1 GB-
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Internal storage16, 32 GB64 Mbit
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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, v4.0 (Ice Cream Sandwich)-
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Main camera
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Main camera5 MP
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Primary camera resolution2592 x 1944 pixels640 x 480 pixels
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Primary camera video720pno
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Primary camera Autofocusautofocus-
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Camera features-No
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Selfie camera
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Secondary camera-No
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Selfie camera1 MP
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Sound
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3.5mm jackYesNo
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LoudspeakerYes, with stereo speakersYes
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NotificationsYesVibration, Polyphonic
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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, 802.11n
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WLAN WiFi HotspotYes-
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USBmicroUSB 2.0Yes
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Bluetoothv2.1v2.0
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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 IMIMIM
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Messaging Push EmailPush Email-
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WAP-Yes
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JavaYes, via Java MIDP emulatorNo
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Browser
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HTMLYes-
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Adobe FlashYes-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity9800 mAh600 mAh
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Battery removableNon-removable-
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Talk time15 h4 h
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Standby time-200 h
