Lenovo A820 vs Samsung Gear S2 classic
Lenovo A820
Samsung Gear S2 classic
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Network
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2G networkGSM 900, 1800, 1900
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3G networkHSDPA 900, 2100-
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HSDPA speedHSDPA-
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HSUPA speedHSUPA-
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-122015-8
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Status2014-122015-10
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Design
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SIMDual SIM (Mini-SIM, dual stand-by)No
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Height135 mm43.6 mm
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Width68.2 mm39.9 mm
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Thickness9.9 mm11.4 mm
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Weight151 g42 g
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ColorsBlackBlack
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size4.5 inches1.2 inches
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Resolution540 x 960 pixels360 x 360 pixels
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Pixel density245 ppi302 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7Dual-core 1 GHz
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ChipsetMediatek MT6589Exynos 3250
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GPUPowerVR SGX544-
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Memory RAM1 GB512 MB
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Internal storage4 GB4 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, v4.1.2 (Jelly Bean)Tizen-based wearable platform
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Main camera
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Main camera8 MP
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Primary camera resolution3264 x 2448 pixels-
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Primary camera video720p-
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Primary camera Autofocusautofocus-
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Selfie camera
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Secondary cameraNo-
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Sound
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3.5mm jackYesNo
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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-No
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Radio FMFM 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 HotspotYes-
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USBmicroUSB 2.0
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BluetoothYesv4.1
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Bluetooth A2DP-Yes
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GPSYes, with A-GPSNo
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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 Mail-
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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 capacity2000 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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