Karbonn A21 vs Samsung Exhibit 4G
Karbonn A21
Samsung Exhibit 4G
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Network
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2G networkGSM 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 1700, 2100
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HSDPA speedHSDPA, 7.2 MbpsHSDPA, 21 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Status
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Oficially announced2014-122011-6
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Design
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SIMDual SIM (Mini-SIM)Mini-SIM
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Height119 mm
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Width58 mm
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Thickness13 mm
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Weight125 g
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ColorsPearl WhiteBlack
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Display
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Display typeTFT capacitive touchscreenAMOLED capacitive touchscreen
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Physical size4.5 inches3.5 inches
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Resolution480 x 800 pixels480 x 800 pixels
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Pixel density207 ppi267 ppi
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Display colors26214416777216
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Hardware
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CPUDual-core 1.2 GHz1 GHz ARM Cortex-A8
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Chipset-Hummingbird
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GPU-PowerVR SGX540
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Memory ROM-1 GB
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Memory RAM512 MB512 MB
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Internal storage4 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, v4.0 (Ice Cream Sandwich)Android OS, v2.3 (Gingerbread)
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Main camera
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Main camera5 MP3.15 MP
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Primary camera resolution2592 x 1944 pixels2048 x 1536 pixels
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Primary camera videovideo480p
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Selfie camera
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Secondary camera-VGA camera
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Selfie camera1.3 MP
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNoNo
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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 DLNA-Yes
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WLAN uma-Yes
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv2.1v3.0
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Bluetooth A2DPYesYes
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GPSYes, with A-GPSYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(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 EmailPush Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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Adobe Flash-Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1800 mAh1500 mAh
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Talk time5 h9 h
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Standby time200 h360 h
