Apple Watch 40mm Series 4 vs Samsung Galaxy A8 Star (A9 Star)
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Apple Watch 40mm Series 4
Samsung Galaxy A8 Star (A9 Star)
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
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3G networkHSDPAHSDPA 850, 900, 1900, 2100
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4G networkLTELTE
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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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 announced2018-92018-6
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Status2018-92018
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Design
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BuildStainless Steel frame; all-ceramic/sapphire crystal backPolycarbonate
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SIMElectronic SIM card (Apple e-SIM)Hybrid Dual SIM (Nano-SIM, dual stand-by)
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Height40 mm162.4 mm
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Width34 mm77 mm
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Thickness10.7 mm7.6 mm
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Weight40 g191 g
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Payment-Samsung Pay
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Waterproof50m-
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ColorsBlack, Gold, SilverBlack, White
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Display
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Display typeLTPO AMOLEDSuper AMOLED capacitive touchscreen
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Physical size1.57 inches6.3 inches
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Resolution394 x 324 pixels1080 x 2220 pixels
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Pixel density326 ppi392 ppi
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Display colors1677721616777216
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ProtectionSapphire crystal glass2.5D curved glass screen
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MultitouchYesYes
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Display features3D Touch display, 1000 nits-
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Hardware
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CPU-Octa-core
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CPUDual-coreQuad-core 2.2 GHz Kryo 260
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CPU(second)quad-core 1.8 GHz Kryo 260
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ChipsetApple S4Qualcomm SDM660 Snapdragon 660
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GPUPowerVRAdreno 512
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Internal storage16 GB64 GB
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Memory RAM-4 GB
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Memory card-microSD(uses second SIM slot)
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Memory card max-400 GB
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OS
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OSwatchOS 5.0Android 8.0 (Oreo)
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Main camera
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Camera type-Dual
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Primary cameraNo-
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Main camera24 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 video-2160p@30fps, 1080p@30fps
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Primary camera Autofocus-phase detection autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; RingtonesVibration; MP3, WAV ringtones
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Earpiece-Yes
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Multimedia
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RadioNo-
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Radio FM-FM 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 Hotspot-Yes
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WLAN WiFi Direct-Yes
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WLAN WiFi Dual Band-Yes
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USBNoType-C 1.0 reversible connector
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Bluetoothv5.0v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDS-Yes
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QZSSYes-
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Features
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Messaging SMS-SMS(threaded view)
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Messaging MMS-MMS
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Messaging Email-Email
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Messaging IM-IM
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Messaging Push Email-Push Email
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SensorsAccelerometer, barometer, gyro (second gen), heart rateFingerprint (rear-mounted), accelerometer, compass, gyro, proximity
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Browser
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HTMLNoHTML5
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity270 mAh3700 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Standby time18 h-
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Selfie camera
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Selfie camera24 MP, f/2.0
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Selfie camera resolution-5632 x 4224 pixels
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Selfie camera video-1080p
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