BlackBerry Classic vs Xiaomi Redmi 4a
BlackBerry Classic
Xiaomi Redmi 4a
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO & TD-SCDMA
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4G networkLTELTE frequency band 1(2100), 3(1800), 7(2600), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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HSPA speed-HSPA
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LTE speedLTELTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-62016-11
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Status2014-112016-11
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Design
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SIMYesDual SIM
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Height139.5 mm
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Width70.4 mm
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Thickness8.5 mm
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Weight131.5 g
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KeyboardQWERTY-
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ColorsBlackGold, Rose Gold
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Display
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Display typeCapacitive touchscreenIPS LCD capacitive touchscreen
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Physical size3.5 inches5.0 inches
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Resolution1440 x 1440 pixels720 x 1280 pixels
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Pixel density582 ppi294 ppi
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Display colors1677721616777216
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Multitouch-Yes
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Hardware
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CPUDual-core 1.5 GHzQuad-core 1.4 GHz ARM Cortex-A53
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ChipsetQualcomm MSM8960Qualcomm MSM8917 Snapdragon 425
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GPU-Adreno 308
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Memory RAM2 GB2 GB
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Internal storage-16 GB
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Memory cardmicroSDmicroSD(uses second SIM slot)
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Memory card max64 GB256 GB
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OS
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OSBlackBerry 10.3 vOSAndroid OS, v6.0.1 (Marshmallow)
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Main camera
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Primary cameraYes-
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Main camera13 MP, f/2.2
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Primary camera video1080p@30fps1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face/smile detection, panorama, touch focus
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Selfie camera
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Secondary cameraYes-
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Selfie camera5 MP, f/2.2
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3 ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11nWi-Fi 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 BandYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Infrared-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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BDS-Yes
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMSMMSMMS
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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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Messaging BBM 6BBM 6-
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JavaYesNo
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Java MIDPMIDP 2.1-
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Sensors-Accelerometer, compass, gyro, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery type-Li-Ion
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Battery capacity-3120 mAh
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Battery removable-Non-removable
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Talk time--
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Standby time--