Acer Iconia Tab A3-A20 vs Samsung Galaxy S II Skyrocket HD I757
Acer Iconia Tab A3-A20
Samsung Galaxy S II Skyrocket HD I757
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900, 2100
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4G network-LTE 700 MHz Class 17, 1700, 2100
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HSDPA speed-HSDPA, 21 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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LTE speed-LTE
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-102012-1
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Status2014-10
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Design
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SIMNoMicro-SIM
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Height256.5 mm
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Width170.2 mm
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Thickness10.2 mm
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Weight508 g
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ColorsBlack, WhiteBlack
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Display
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Display typeLED-backlit IPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size10.1 inches4.65 inches
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Resolution1280 x 800 pixels720 x 1280 pixels
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Pixel density149 ppi316 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 1.3 GHz ARM Cortex-A7Dual-core 1.5 GHz
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ChipsetMediatek MT8127-
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GPUMali-450MP4-
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Memory RAM1 GB1 GB
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Internal storage16 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB32 GB
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OS
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OSAndroid OS, v4.4 (KitKat)Android OS, v2.3.5 (Gingerbread)
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Main camera
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Main camera5 MP8 MP
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Primary camera resolution2592 x 1944 pixels3264 x 2448 pixels
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Primary camera video1080p1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera featuresGeo-tagging-
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Selfie camera
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Selfie camera2 MP2 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsMP3, 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 802.11b, 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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Bluetoothv4.0v3.0
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Bluetooth A2DP-Yes
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Bluetooth EDR-Yes
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GPSYes, with A-GPSYes, 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 Mail
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JavaNoYes, via Java MIDP emulator
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SensorsAccelerometer-
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Browser
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HTMLHTML5HTML5
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Adobe Flash-Yes
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Battery
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Battery typeLi-Po-
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Battery capacity5910 mAh-
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Battery removableNon-removable-
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Talk time9 h-
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Standby time--