Celkon A20 vs Samsung Gear S2 classic
Celkon A20
Samsung Gear S2 classic
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Network
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2G networkGSM 900, 1800
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3G networkHSDPA 2100-
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Speed YesYes, 384 kbps-
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2013-82015-8
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Status2013-82015-10
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Design
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SIMDual SIM (Mini-SIM)No
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Height43.6 mm
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Width39.9 mm
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Thickness11.4 mm
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Weight42 g
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ColorsBlackBlack
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Display
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Display typeTFT capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size4.0 inches1.2 inches
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Resolution480 x 800 pixels360 x 360 pixels
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Pixel density233 ppi302 ppi
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Display colors-16777216
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Hardware
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CPUDual-core 1.2 GHzDual-core 1 GHz
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Chipset-Exynos 3250
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Memory ROM256 MB-
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Memory RAM512 MB512 MB
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Internal storage-4 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)Tizen-based wearable platform
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Main camera
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Main camera3.15 MP
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Primary camera resolution2048 x 1536 pixels-
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Primary camera videovideo-
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Selfie camera
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Secondary cameraVGA camera-
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Sound
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3.5mm jackYesNo
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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 802.11b, 802.11g, 802.11n
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USBmicroUSB 2.0
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BluetoothYesv4.1
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Bluetooth A2DP-Yes
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GPSNoNo
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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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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, barometer, gyro, heart rate
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Browser
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HTMLYes-
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Browser-No
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity1500 mAh250 mAh
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Battery removable-Non-removable
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Talk time--
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Standby time--
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Standby time 3G-48 h
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Multimedia
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Radio-No
