Samsung DoubleTime I857 vs Xiaomi Redmi
Samsung DoubleTime I857
Xiaomi Redmi
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800, 1900
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3G networkHSDPA 850, 1900, 2100HSDPA 900, 2100
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HSDPA speedHSDPA, 7.2 Mbps-
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HSUPA speedHSUPA, 2 Mbps-
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HSPA speed-HSPA
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GPRSYesYes
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EDGEYesYes
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Availability
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Status2011-112013-8
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Oficially announced2011-102013-7
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Design
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SIMMini-SIMDual SIM
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Height113 mm137 mm
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Width62 mm69 mm
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Thickness15 mm9.9 mm
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Weight148 g158 g
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KeyboardQWERTY-
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ColorsBlack/whiteBlack, Chinese Red, Metallic Gray/ blue, green, yellow panels
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Display
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Display typeTFT capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size3.2 inches4.7 inches
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Resolution320 x 480 pixels720 x 1280 pixels
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Pixel density180 ppi312 ppi
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Display colors26214416777216
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Hardware
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CPU800 MHz Scorpion1.5 GHz ARM Quad-core Cortex-A7
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ChipsetQualcomm MSM7230Mediatek MT6589T
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GPUAdreno 205PowerVR SGX544MP2
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Memory RAM256 MB1 GB
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Internal storage260 MB4 GB
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Memory cardmicroSDmicroSD
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Memory card max32 GB32 GB
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OS
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OSAndroid OS, v2.2 (Froyo)Android OS, v4.2 (Jelly Bean)
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Main camera
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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 video320p1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flash-LED flash
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Camera features-1.4 µm pixel size, HDR, face/smile detection, geo-tagging, touch focus
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Selfie camera
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Secondary cameraNo-
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Selfie camera1.3 MP
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Selfie camera video-720p@30fps
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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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RadioNo-
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Radio FM-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB host-Yes
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Bluetoothv3.0v4.0
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Bluetooth A2DPYesYes
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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 Email-Push Mail
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Sensors-Accelerometer, compass, gyro, proximity
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Browser
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HTMLYesHTML5
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Adobe FlashYes-
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity1200 mAh2000 mAh
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Talk time6 h-
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Standby time250 h-