Oppo A57 vs Samsung G3812B Galaxy S3 Slim
Oppo A57
Samsung G3812B Galaxy S3 Slim
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100 & TD-SCDMAHSDPA 850, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)-
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HSDPA speed-HSDPA, 21 Mbps
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HSUPA speed-HSUPA, 5.76 Mbps
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HSPA speedHSPA-
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LTE speedLTE-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-112014-3
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Status2016-122014-3
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Design
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SIMDual SIM (Nano-SIM, dual stand-by)Micro-SIM
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Height149.1 mm133 mm
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Width72.9 mm66 mm
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Thickness7.7 mm9.7 mm
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Weight147 g139 g
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ColorsGold, Rose GoldBlack, White
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Display
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Display typeIPS LCD capacitive touchscreenTFT capacitive touchscreen
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Physical size5.2 inches4.52 inches
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Resolution720 x 1280 pixels540 x 960 pixels
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Pixel density282 ppi244 ppi
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Display colors1677721616777216
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MultitouchYes-
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Hardware
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CPUOcta-core 1.4 GHz ARM Cortex-A53Quad-core 1.2 GHz
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ChipsetQualcomm MSM8940 Snapdragon 435-
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GPUAdreno 505-
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Internal storage32 GB8 GB
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Memory RAM3 GB1 GB
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Memory cardmicroSD(uses second SIM slot)microSD
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Memory card max256 GB32 GB
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OS
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OSAndroid OS, v6.0 (Marshmallow)Android OS, v4.2 (Jelly Bean)
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Main camera
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Main camera13 MP, f/2.25 MP
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Primary camera resolution-2592 x 1944 pixels
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Primary camera video1080p@30fpsvideo
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Primary camera Autofocusphase detection autofocusautofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focus-
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Selfie camera
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Secondary camera-VGA camera
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Selfie camera16 MP, f/2.0 , 1.12 µm
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Selfie camera video1080p-
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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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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 HotspotYesYes
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WLAN WiFi Direct-Yes
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USBmicroUSB 2.0microUSB 2.0
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USB hostYes-
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Bluetoothv4.1v4.0
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Bluetooth A2DPYesYes
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Bluetooth EDR-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-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 EmailPush Mail
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JavaNoYes, via Java MIDP emulator
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SensorsFingerprint (front-mounted), accelerometer, compass, proximity-
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Browser
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HTMLHTML5Yes
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2900 mAh2100 mAh
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Battery removableNon-removable-
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Talk time--
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Standby time--
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