Acer Iconia Tab B1-A71 vs Karbonn A27 Retina
Acer Iconia Tab B1-A71
Karbonn A27 Retina
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Network
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2G networkGSM 900, 1800, 1900
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3G network-HSDPA 2100
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HSDPA speed-HSDPA, 7.2 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2013-12013-3
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Status2013-12013-3
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Design
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SIMNoDual SIM (Mini-SIM)
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Height197.4 mm133.6 mm
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Width128.5 mm66 mm
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Thickness11.3 mm9.1 mm
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Weight320 g126.5 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size7.0 inches4.3 inches
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Resolution600 x 1024 pixels540 x 960 pixels
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Pixel density170 ppi256 ppi
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Display colors262144-
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Hardware
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CPUDual-core 1.2 GHz ARM Cortex-A9Dual-core 1.2 GHz
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ChipsetMediatek MT8317-
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GPUSGX531u-
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Memory RAM512 MB512 MB
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Internal storage8, 16 GB4 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, v4.1 (Jelly Bean)Android OS, v4.1 (Jelly Bean)
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Main camera
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Main camera8 MP
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Primary camera resolution640 x 480 pixels3264 x 2448 pixels
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Primary camera videovideovideo
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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 camera2 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, WAV 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 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0Yes
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Bluetoothv4.0Yes
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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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HTMLHTML5Yes
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity2710 mAh1800 mAh
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Battery removableNon-removable-
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Talk time-4 h
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Standby time-180 h
