Apple Watch 40mm Series 4 vs Samsung Galaxy J7 Duo
Apple Watch 40mm Series 4
Samsung Galaxy J7 Duo
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPAHSDPA 850, 900, 1900, 2100
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4G networkLTELTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)
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LTE speed-LTE, Cat4, 150 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 announced2018-92018-4
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Status2018-92018-4
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Design
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BuildStainless Steel frame; all-ceramic/sapphire crystal backMetal
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SIMElectronic SIM card (Apple e-SIM)Single SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)
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Height40 mm153.5 mm
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Width34 mm77.2 mm
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Thickness10.7 mm8.2 mm
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Weight40 g174 g
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Waterproof50m-
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ColorsBlack, Gold, SilverBlack, Gold, Rose Gold, White
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Display
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Display typeLTPO AMOLEDSuper AMOLED capacitive touchscreen
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Physical size1.57 inches5.5 inches
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Resolution394 x 324 pixels720 x 1280 pixels
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Pixel density326 ppi267 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-coreDual-core 2.2 GHz Cortex-A73
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CPU(second)Hexa-core 1.6 GHz Cortex-A53
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ChipsetApple S4Exynos 7885 Octa
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GPUPowerVRMali-G71
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Internal storage16 GB32 GB
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Memory RAM-4 GB
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Memory card-microSD
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Memory card max-256 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 camera13 MP, f/1.9
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5 MP, f/1.9
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video-1080p@30fps
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Primary camera Autofocus-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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USBNoYes
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Bluetoothv5.0v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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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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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 (front-mounted), accelerometer, 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 mAh3000 mAh
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Battery removableNon-removableRemovable
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Standby time18 h-
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Selfie camera
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Flash-LED flash
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Selfie camera8 MP, f/1.9
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Selfie camera resolution-3264 x 2448 pixels
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Selfie camera video-720p@30fps
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