Oppo A57 vs Samsung Galaxy A8 Star (A9 Star)
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Oppo A57
Samsung Galaxy A8 Star (A9 Star)
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 850, 900, 1900, 2100 & TD-SCDMAHSDPA 850, 900, 1900, 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)LTE
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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HSPA speedHSPA-
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LTE speedLTE-
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LTE-A speed-LTE-A, (3CA) Cat9, 450 Mbps download, 50 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2016-112018-6
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Status2016-122018
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Design
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Build-Polycarbonate
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height149.1 mm162.4 mm
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Width72.9 mm77 mm
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Thickness7.7 mm7.6 mm
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Weight147 g191 g
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Payment-Samsung Pay
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ColorsGold, Rose GoldBlack, White
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.2 inches6.3 inches
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Resolution720 x 1280 pixels1080 x 2220 pixels
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Pixel density282 ppi392 ppi
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Display colors1677721616777216
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Protection-2.5D curved glass screen
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MultitouchYesYes
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Hardware
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CPU-Octa-core
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CPUOcta-core 1.4 GHz ARM Cortex-A53Quad-core 2.2 GHz Kryo 260
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CPU(second)quad-core 1.8 GHz Kryo 260
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ChipsetQualcomm MSM8940 Snapdragon 435Qualcomm SDM660 Snapdragon 660
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GPUAdreno 505Adreno 512
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Memory RAM3 GB4 GB
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Internal storage32 GB64 GB
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Memory cardmicroSD(uses second SIM slot)microSD(uses second SIM slot)
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Memory card max256 GB400 GB
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OS
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OSAndroid OS, v6.0 (Marshmallow)Android 8.0 (Oreo)
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Main camera
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Camera type-Dual
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Main camera13 MP, f/2.224 MP, f/1.7
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16 MP, f/1.7
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Primary camera resolution-4608 x 3456 pixels
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Primary camera video1080p@30fps2160p@30fps, 1080p@30fps
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Primary camera Autofocusphase detection autofocusphase detection autofocus
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Primary camera flashLED flashLED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera16 MP, f/2.0 , 1.12 µm24 MP, f/2.0
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Selfie camera resolution-5632 x 4224 pixels
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Selfie camera video1080p1080p
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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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Earpiece-Yes
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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USB hostYes-
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Bluetoothv4.1v5.0
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Bluetooth A2DPYesYes
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bluetooth LE-Yes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASS-Yes
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GALILEO-Yes
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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 EmailPush Email
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JavaNo-
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SensorsFingerprint (front-mounted), accelerometer, compass, proximityFingerprint (rear-mounted), accelerometer, compass, gyro, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity2900 mAh3700 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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