Samsung Galaxy A8 Star (A9 Star) vs UMIDIGI S2 Pro
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Samsung Galaxy A8 Star (A9 Star)
UMIDIGI S2 Pro
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMAGSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTELTE frequency band 1(2100), 3(1800), 7(2600), 18(800)
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speed-LTE, Cat6, 301 Mbps download, 51 Mbps upload
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LTE-A speedLTE-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 announced2018-62017
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Status20182017
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Design
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BuildPolycarbonateAluminium alloy
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SIMHybrid Dual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM/Nano-SIM(microSD))
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Height162.4 mm158.1 mm
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Width77 mm74.6 mm
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Thickness7.6 mm8.8 mm
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Weight191 g186 g
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PaymentSamsung Pay-
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ColorsBlack, WhiteBlack, Red
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Display
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Display typeSuper AMOLED capacitive touchscreenIPS capacitive touchscreen
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Physical size6.3 inches6 inches
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Resolution1080 x 2220 pixels1080 x 2160 pixels
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Pixel density392 ppi402 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screenScratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 4
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MultitouchYesYes
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Hardware
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CPUOcta-coreOcta-core
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CPUQuad-core 2.2 GHz Kryo 260Quad-core 2.6 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Kryo 260quad-core 1.6 GHz Cortex-A53
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ChipsetQualcomm SDM660 Snapdragon 660MediaTek Helio P20(MT6757CD)
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GPUAdreno 512Mali-T880 MP2
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Memory RAM4 GB6 GB
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Internal storage64 GB128 GB
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Memory cardmicroSD(uses second SIM slot)microSD, microSDHC, microSDXC
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Memory card max400 GB256 GB
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Storage-eMMC 5.1
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OS
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OSAndroid 8.0 (Oreo)UMI OS(Android 7.0 Nougat)
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Main camera
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Camera typeDualDual
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Main camera24 MP, f/1.713 MP, 1.133 µm
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16 MP, f/1.75 MP
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Primary camera resolution4608 x 3456 pixels4160 x 3120 pixels
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Primary camera video2160p@30fps, 1080p@30fps2160@30fps
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Primary camera Autofocusphase detection autofocus-
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Primary camera flashLED flashquad-LED flash
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focusAutofocus, continuous shooting, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera24 MP, f/2.016 MP
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Selfie camera resolution5632 x 4224 pixels4608 x 3456 pixels
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Selfie camera video1080p-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtones-
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EarpieceYes-
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Multimedia
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Radio FMFM radioFM radio
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5 GHz
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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Wi-Fi display-Yes
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WLAN WiFi Dual BandYesYes
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USBType-C 1.0 reversible connectorType-C reversible connector
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USB On-The-Go-Yes
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Bluetoothv5.0v4.1
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYes-
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BDSYes-
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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SensorsFingerprint (rear-mounted), accelerometer, compass, gyro, proximityAccelerometer, compass, fingerprint, hall, light, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity3700 mAh5100 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesMediaTek Pump Express Plus 2.0
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Standby time 2G-480 h
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Standby time 3G-480 h
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