Acer Iconia Tab B1-A71 vs Coolpad Roar
Acer Iconia Tab B1-A71
Coolpad Roar
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 900, 2100
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HSPA speed-HSPA
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2013-12015-11
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Status2013-12015-11
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Design
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SIMNoYes
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Height197.4 mm133 mm
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Width128.5 mm65.4 mm
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Thickness11.3 mm9 mm
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Weight320 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 inches4.5 inches
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Resolution600 x 1024 pixels480 x 854 pixels
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Pixel density170 ppi218 ppi
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Display colors262144-
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Hardware
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CPUDual-core 1.2 GHz ARM Cortex-A9Quad-core 1.3 GHz
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ChipsetMediatek MT8317Mediatek MT6580
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GPUSGX531u-
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Memory RAM512 MB1 GB
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Internal storage8, 16 GB8 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, v5.1 (Lollipop)
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Main camera
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Main camera5 MP
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Primary camera resolution640 x 480 pixels2592 х 1944 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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Camera features-Yes
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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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USBmicroUSB 2.0microUSB 2.0
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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 Email-
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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Sensors-Yes
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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 capacity2710 mAh1800 mAh
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Battery removableNon-removable-
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Talk time--
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Standby time--
