Celkon A20 vs HTC Nexus 9
Celkon A20
HTC Nexus 9
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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, 1700, 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 announced2013-82014-10
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Status2013-82014-11
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Design
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SIMDual SIM (Mini-SIM)Nano-SIM
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Height228.2 mm
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Width153.7 mm
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Thickness8 mm
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Weight-
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Weight(Wi-Fi)-425 g
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Weight(3G)-436 g
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Weight(4G/LTE)-436 g
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ColorsBlackIndigo Black, Lunar White, Sand
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size4.0 inches8.9 inches
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Resolution480 x 800 pixels1536 x 2048 pixels
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Pixel density233 ppi281 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.2 GHzDual-core 2.3 GHz Denver
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Chipset-Nvidia Tegra K1
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GPU-Kepler DX1
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Memory ROM256 MB-
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Memory RAM512 MB2 GB
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Internal storage-16, 32 GB
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Memory cardmicroSD
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Memory card max32 GB-
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OS
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OSAndroid OS, v4.2.0 (Jelly Bean)Android OS, v5.0 (Lollipop)
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Main camera
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Camera type-Photo / Video
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Main camera3.15 MP8 MP
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Primary camera resolution2048 x 1536 pixels3264 x 2448 pixels
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Primary camera videovideo1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Primary camera video stereo sound record-stereo sound record
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Camera features-Geo-tagging, face detection, touch focus
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Selfie camera
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Secondary cameraVGA camera-
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Selfie camera1.6 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, with stereo speakers
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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, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-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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BluetoothYesv4.1
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Bluetooth A2DP-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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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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Sensors-Accelerometer, compass, gyro
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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 capacity1500 mAh6700 mAh
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Battery removable-Non-removable
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Talk time--
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Talk time 3G-9 h 30 min
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Standby time--
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Standby time 3G-720 h
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Multimedia
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Radio-No