Apple Watch 44mm Series 4 Aluminum vs Posh Icon HD X551
Apple Watch 44mm Series 4 Aluminum
Posh Icon HD X551
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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, 1900, 2100
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4G networkLTE-
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HSDPA speed-21.1 Mbps
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HSUPA speed-5.76 Mbps
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-92015-11
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Status2018-92016-1
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Design
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BuildAluminum frame; all-ceramic/sapphire crystal back-
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SIMElectronic SIM card (Apple e-SIM)Dual SIM (Micro-SIM/ Mini-SIM, dual stand-by)
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Height44 mm153.2 mm
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Width38 mm79 mm
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Thickness10.7 mm8.2 mm
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Weight48 g115 g
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Waterproof50m-
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ColorsGray, Gold, SilverDark Grey, Gold, Rose Gold, Silver, White
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Display
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Display typeLTPO AMOLEDIPS LCD capacitive touchscreen
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Physical size1.78 inches5.5 inches
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Resolution448 x 368 pixels720 x 1280 pixels
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Pixel density326 ppi267 ppi
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Display colors1677721616777216
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ProtectionIon-X strengthened glass-
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MultitouchYesYes, max 5 fingers
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Display features3D Touch display, 1000 nits-
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Hardware
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CPUDual-coreQuad-core 1.3 GHz ARM Cortex-A7
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ChipsetApple S4Mediatek MT6580A
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GPUPowerVRMali-400MP2
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Internal storage16 GB16 GB
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Memory RAM-1 GB
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Memory card-microSD
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Memory card max-32 GB
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OS
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OSwatchOS 5.0Android OS, v5.1 (Lollipop)
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Main camera
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Primary cameraNo-
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Main camera8 MP
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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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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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WLAN DLNA-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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Bluetooth EDR-Yes
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NFCYes-
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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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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 Mail-Push Mail
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Java-No
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, compass, proximity
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Browser
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HTMLNoHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity-2100 mAh
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Battery removableNon-removableRemovable
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Talk time 2G-22 h
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Talk time 3G-12 h
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Standby time18 h-
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Standby time 2G-700 h
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Standby time 3G-250 h
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Selfie camera
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Selfie camera2 MP
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