Samsung DoubleTime I857 vs vivo Y15
Samsung DoubleTime I857
vivo Y15
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 1900, 2100HSDPA 850, 900, 2100
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HSDPA speedHSDPA, 7.2 Mbps2.8 Mbps
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HSUPA speedHSUPA, 2 Mbps2.2 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2011-102015-3
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Status2011-112015-3
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Design
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SIMMini-SIMDual SIM (Micro-SIM, dual stand-by)
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Height113 mm131.4 mm
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Width62 mm66.2 mm
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Thickness15 mm9 mm
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Weight148 g130 g
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KeyboardQWERTY-
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ColorsBlack/whiteBlack, White
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Display
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Display typeTFT capacitive touchscreenCapacitive touchscreen
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Physical size3.2 inches4.5 inches
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Resolution320 x 480 pixels480 x 854 pixels
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Pixel density180 ppi218 ppi
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Display colors26214416777216
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Hardware
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CPU800 MHz Scorpion1.3 GHz ARM Quad-core Cortex-A7
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ChipsetQualcomm MSM7230Mediatek MT6582
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GPUAdreno 205Mali-400MP2
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Memory RAM256 MB512 MB
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Internal storage260 MB4 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, v2.2 (Froyo)Android OS, v4.2.2 (Jelly Bean)
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Main camera
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Main camera3.15 MP5 MP
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Primary camera resolution2048 x 1536 pixels2592 x 1944 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-Geo-tagging, touch focus
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Selfie camera
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Secondary cameraNo-
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Selfie camera2 MP
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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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Bluetoothv3.0v4.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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Bluetooth EDR-Yes
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Infrared-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, 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-Ion
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Battery capacity1200 mAh1900 mAh
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Talk time6 h-
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Talk time 2G-10 h
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Talk time 3G-8 h
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Standby time250 h-
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Standby time 2G-410 h
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Standby time 3G-410 h