Karbonn Smart A12 Star vs Posh Volt LTE L540
Karbonn Smart A12 Star
Posh Volt LTE L540
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900
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3G networkHSDPA 2100HSDPA 850, 1900, 2100
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4G network-LTE frequency band 2(1900), 3(1800), 4(1700/2100), 7(2600), 17(700)
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HSDPA speedHSDPA21.1 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2014-72016-3
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Status2014-72016-5
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Design
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SIMDual SIM (Micro-SIM, dual stand-by)Dual SIM (Micro-SIM, dual stand-by)
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Height124.2 mm143.8 mm
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Width64.2 mm72 mm
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Thickness10.1 mm10 mm
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Weight130 g167.5 g
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ColorsBlackGold, Grey, Rose Gold
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches5.0 inches
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Resolution480 x 800 pixels720 x 1280 pixels
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Pixel density233 ppi294 ppi
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Display colors1677721616777216
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Multitouch-Yes, max 5 fingers
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Hardware
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CPUDual-core 1.2 GHzQuad-core 1.0 GHz
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Chipset-Mediatek MT6735P
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GPU-Mali-T720
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Memory RAM512 MB3 GB
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Internal storage4 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB128 GB
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OS
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OSAndroid OS, v4.4.2 (KitKat)Android OS, v5.1 (Lollipop)
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Main camera
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Main camera5 MP8 MP, f/2.4
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Primary camera resolution2592 x 1944 pixels-
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flashLED flashLED flash
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Camera features-1.12 µm pixel size, 1/4" sensor size, HDR, face detection, geo-tagging, panorama, touch focus
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera5 MP, f/2.2 , 1/5" , 1.12 µm
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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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Radio FMFM radioFM 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 HotspotYesYes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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BluetoothYesv4.0
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Bluetooth A2DP-Yes
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bluetooth LE-Yes
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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 Email-
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity1400 mAh4000 mAh
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Battery removable-Non-removable
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Talk time--
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Talk time 2G-16 h
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Talk time 3G-12 h
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Standby time300 h-
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Standby time 2G-600 h
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Standby time 3G-300 h
