Celkon A20 vs Nokia Lumia 830
Celkon A20
Nokia Lumia 830
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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, 900, 1900, 2100
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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Speed YesYes, 384 kbps-
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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 announced2013-82014-9
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Status2013-82014-9
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Design
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SIMDual SIM (Mini-SIM)Nano-SIM
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Height139.4 mm
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Width70.7 mm
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Thickness8.5 mm
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Weight150 g
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ColorsBlackOrange, black, gold, green, white
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Display
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Display typeTFT 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 colors-16777216
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Hardware
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CPUDual-core 1.2 GHzQuad-core 1.2 GHz ARM Cortex-A7
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Chipset-Qualcomm Snapdragon 400
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GPU-Adreno 305
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Memory ROM256 MB-
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Memory RAM512 MB1 GB
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Internal storage-16 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, v4.2.0 (Jelly Bean)Microsoft Windows Phone 8.1
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Main camera
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Camera type-Photo / Video
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Main camera3.15 MP10 MP
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Primary camera resolution2048 x 1536 pixels3520 x 2640 pixels
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Primary camera videovideo1080p@30fps
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Primary camera optics-Carl Zeiss optics
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Primary camera video optical stabilization-optical stabilization
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Primary camera optical image stabilization-optical image stabilization
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Primary camera video stereo sound record-stereo sound record
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Camera features-1/3.4'' sensor size, PureView technology, face detection, geo-tagging, panorama
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera0.9 MP
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Selfie camera video-720p
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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NotificationsVibration, Polyphonic, MP3 ringtonesVibration; MP3, WAV ringtones
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Dual Band-Yes
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WLAN DLNA-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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Bluetooth EDR-Yes
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Bluetooth AptX-Yes
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GPSNoYes, with A-GPS
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GLONASS-Yes
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GPS Navigator-Beidou
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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 Email
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, compass, gyro, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh2200 mAh
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Talk time--
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Talk time 2G-12 h 54 min
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Talk time 3G-14 h 48 min
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Standby time-528 h
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Multimedia
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Radio FM-FM radio