Samsung DoubleTime I857 vs ZTE Imperial
Samsung DoubleTime I857
ZTE Imperial
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Network
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2G networkGSM 850, 900, 1800, 1900CDMA 800, 1900
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3G networkHSDPA 850, 1900, 2100CDMA2000 1xEV-DO
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4G network-LTE
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HSDPA speedHSDPA, 7.2 Mbps-
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HSUPA speedHSUPA, 2 Mbps-
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EV-DO speed-3.1 Mbps
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LTE speed-LTE
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GPRSYes
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EDGEYes
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Availability
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Status2011-112013-6
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Oficially announced2011-102013-6
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Design
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SIMMini-SIMYes
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Height113 mm25 mm
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Width62 mm66 mm
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Thickness15 mm11 mm
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Weight148 g153.4 g
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KeyboardQWERTY-
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ColorsBlack/whiteBlack
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Display
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Display typeTFT capacitive touchscreenTFT capacitive touchscreen
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Physical size3.2 inches4.0 inches
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Resolution320 x 480 pixels480 x 800 pixels
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Pixel density180 ppi233 ppi
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Display colors262144-
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Hardware
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CPU800 MHz Scorpion1.2 GHz Dual-core
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ChipsetQualcomm MSM7230-
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GPUAdreno 205-
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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, v4.1 (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 video320pvideo
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Primary camera Autofocusautofocusautofocus
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Primary camera flash-LED flash
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Selfie camera
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Secondary cameraNoYes
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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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RadioNoNo
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Connectivity
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WLANWi-Fi
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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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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 Email
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JavaYes, via Java MIDP emulatorYes, via Java MIDP emulator
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Browser
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HTMLYesYes
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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 mAh2500 mAh
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Talk time6 h12 h
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Standby time250 h280 h
