Acer Liquid S2 vs vivo Y51
Acer Liquid S2
vivo Y51
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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 900, 2100TD-SCDMA
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4G networkLTE 800, 1800, 2600-
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HSDPA speedHSDPA, 42.2 Mbps-
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HSUPA speedHSUPA, 5.76 Mbps-
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TD-SCDMA speed-TD-SCDMA
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LTE-A speedLTE-A, Cat4, 150 Mbps download, 50 Mbps upload-
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TD-LTE speed-TD-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2013-82015-12
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Status2013-122015-12
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Design
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SIMMicro-SIMDual SIM
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Height166 mm143.8 mm
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Width86 mm71.7 mm
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Thickness9 mm7.5 mm
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Weight231 g157 g
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ColorsBlack, RedWhite
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Display
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Display typeIPS LCD capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size6.0 inches5.0 inches
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Resolution1080 x 1920 pixels540 x 960 pixels
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Pixel density367 ppi220 ppi
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Display colors1677721616777216
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Hardware
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CPUQuad-core 2.2 GHz Krait 400Quad-core 1.2 GHz
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ChipsetQualcomm MSM8974 Snapdragon 800-
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GPUAdreno 330-
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Memory RAM2 GB2 GB
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Internal storage16 GB16 GB
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Memory cardmicroSDmicroSD
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Memory card max128 GB128 GB
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OS
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OSAndroid OS, v4.2.2 (Jelly Bean)Android OS, v5.0.2 (Lollipop)
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Main camera
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Main camera13 MP8 MP
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Primary camera resolution4160 x 3120 pixels3264 x 2448 pixels
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Primary camera video2160p@24fps, 1080p@60fps1080p@30fps
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Primary camera Autofocusautofocusautofocus
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Primary camera flashLED flashLED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera2 MP5 MP
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Selfie camera video1080p@30fps-
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Sound
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3.5mm jackYesYes
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LoudspeakerYes, with stereo speakersYes
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NotificationsVibration, MP3, WAV ringtonesVibration; MP3, WAV ringtones
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Multimedia
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Radio FMStereo FM radio with RDSFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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WLAN DLNAYes-
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USBmicroUSB 2.0microUSB 2.0
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Bluetoothv4.0Yes
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Bluetooth A2DPYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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BDS-Yes
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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 IM-IM
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Messaging Push EmailPush Email-
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Messaging Push Mail-Push Mail
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JavaYes, via Java MIDP emulatorNo
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Sensors-Accelerometer, compass, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3300 mAh2350 mAh
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Talk time--
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Standby time--