Apple Watch 40mm Series 4 vs Senseit N151
Apple Watch 40mm Series 4
Senseit N151
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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 900, 2100
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4G networkLTELTE frequency band 3(1800), 7(2600), 18(800);
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LTE speed-LTE, Cat4, 150 Mbps download, 51 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 backPlastic
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SIMElectronic SIM card (Apple e-SIM)Dual SIM (Micro-SIM)
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Height40 mm144 mm
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Width34 mm72 mm
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Thickness10.7 mm9.6 mm
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Weight40 g138 g
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Waterproof50m-
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ColorsBlack, Gold, SilverBlack
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Display
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Display typeLTPO AMOLEDIPS capacitive touchscreen
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Physical size1.57 inches5 inches
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Resolution394 x 324 pixels720 x 1280 pixels
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Pixel density326 ppi294 ppi
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Display colors1677721616777216
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ProtectionSapphire crystal glass-
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MultitouchYesYes
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Display features3D Touch display, 1000 nits-
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Hardware
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CPUDual-coreQuad-core 1.25 GHz Cortex-A53
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ChipsetApple S4Mediatek MT6737
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GPUPowerVRMali-T720 MP1
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Internal storage16 GB8 GB
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Memory RAM-1 GB
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Memory card-microSD, microSDHC, microSDXC
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Memory card max-32 GB
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OS
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OSwatchOS 5.0Android 7.0 Nougat
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Main camera
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Primary cameraNo-
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Main camera8 MP, f/2.2
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Primary camera resolution-3264 x 2448 pixels
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Primary camera video-720p@30fps
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Primary camera flash-LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene mode
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; Ringtones-
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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 802.11b, 802.11g, 802.11n
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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USBNomicroUSB 2.0
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Bluetoothv5.0v4.0
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Bluetooth A2DPYesYes
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bluetooth LEYes-
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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GALILEOYes-
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QZSSYes-
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Features
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, light, 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 mAh2100 mAh
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Battery removableNon-removableRemovable
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Talk time 2G-5 h
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Talk time 3G-5 h
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Standby time18 h-
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Standby time 2G-180 h
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Standby time 3G-180 h
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Selfie camera
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Selfie camera2 MP
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Selfie camera resolution-1920 x 1080 pixels
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Selfie camera video-480@30fps
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