Lava Z91 vs Samsung Galaxy A8 Star (A9 Star)
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Lava Z91
Samsung Galaxy A8 Star (A9 Star)
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Network
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2G networkGSM 900, 1800GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPA 900, 2100HSDPA 850, 900, 1900, 2100
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 40(2300), 41(2500)LTE
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE, Cat4, 150 Mbps download, 50 Mbps upload-
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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 announced2018-32018-6
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Status2018-32018
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Design
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BuildPlastic, metalPolycarbonate
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SIMDual SIM (Nano-SIM, dual stand-by)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height152 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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ColorsBlueBlack, White
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Display
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Display typeIPS LCD capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.7 inches6.3 inches
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Resolution720 x 1440 pixels1080 x 2220 pixels
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Pixel density282 ppi392 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen2.5D curved glass screen
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MultitouchYes, max 5 fingersYes
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.3 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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ChipsetMediatek MT6739Qualcomm SDM660 Snapdragon 660
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GPUPowerVR GE8100Adreno 512
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Memory RAM3 GB4 GB
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Internal storage32 GB64 GB
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Memory cardmicroSDmicroSD(uses second SIM slot)
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Memory card max128 GB400 GB
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OS
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OSAndroid 7.1 (Nougat)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/2.0 , 1.12 µm24 MP, f/1.7
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16 MP, f/1.7
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Primary camera resolution4160 x 3120 pixels4608 x 3456 pixels
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Primary camera video1080p@30fps2160p@30fps, 1080p@30fps
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Primary camera Autofocusautofocusphase detection autofocus
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Primary camera flash-LED flash
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Camera featuresGeo-tagging, face detection, touch focusGeo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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FlashLED flash-
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Selfie camera8 MP, f/2.224 MP, f/2.0
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Selfie camera resolution3264 x 2448 pixels5632 x 4224 pixels
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Selfie camera video-1080p
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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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EarpieceYesYes
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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, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBmicroUSB 2.0Type-C 1.0 reversible connector
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Bluetoothv4.0v5.0
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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 IMIMIM
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Messaging Push Email-Push Email
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SensorsFingerprint (rear-mounted), accelerometer, proximityFingerprint (rear-mounted), accelerometer, compass, gyro, proximity
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Browser
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HTMLYesHTML5
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity3000 mAh3700 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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