Apple Watch 40mm Series 4 vs BLU Studio Selfie 2
Apple Watch 40mm Series 4
BLU Studio Selfie 2
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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, 1700(AWS), 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 announced2018-92016-5
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Status2018-92016-5
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Design
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BuildStainless Steel frame; all-ceramic/sapphire crystal back-
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SIMElectronic SIM card (Apple e-SIM)Dual SIM (Micro-SIM, dual stand-by)
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Height40 mm144.4 mm
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Width34 mm72.5 mm
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Thickness10.7 mm8.5 mm
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Weight40 g153 g
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Waterproof50m-
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ColorsBlack, Gold, SilverBlack, Gold, White
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Display
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Display typeLTPO AMOLEDIPS LCD capacitive touchscreen
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Physical size1.57 inches5.0 inches
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Resolution394 x 324 pixels480 x 854 pixels
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Pixel density326 ppi196 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 1.3 GHz ARM Cortex-A7
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ChipsetApple S4Mediatek MT6580
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GPUPowerVRMali-400
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Internal storage16 GB8 GB
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Memory RAM-1 GB
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Memory card-microSD
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Memory card max-64 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 camera5 MP
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Primary camera video-720@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, face detection, 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-Stereo 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 A2DPYes-
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bluetooth LEYes-
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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 Email-Push Email
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Java-No
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, 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 capacity270 mAh3000 mAh
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Battery removableNon-removableRemovable
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Talk time 2G-34 h
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Talk time 3G-24 h
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Standby time18 h-
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Standby time 2G-700 h
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Standby time 3G-600 h
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Selfie camera
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Selfie camera5 MP
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