Apple Watch 40mm Series 4 vs BLU Vivo X Link
Apple Watch 40mm Series 4
BLU Vivo X Link
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA-
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4G networkLTE-
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GPRSYesYes
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EDGEYesNo
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Availability
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Oficially announced2018-92018-3
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Status2018-92018-5
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Design
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BuildStainless Steel frame; all-ceramic/sapphire crystal backAluminum body
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SIMElectronic SIM card (Apple e-SIM)Mini-SIM
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Height40 mm45.8 mm
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Width34 mm54 mm
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Thickness10.7 mm13.9 mm
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Weight40 g65 g
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Waterproof50mIP54
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Dust proof-IP54
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ColorsBlack, Gold, SilverBlack, Rose Gold, Silver
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Display
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Display typeLTPO AMOLEDIPS LCD capacitive touchscreen
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Physical size1.57 inches1.1 inches
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Resolution394 x 324 pixels240 x 240 pixels
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Pixel density326 ppi309 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-core256 MHz
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ChipsetApple S4Mediatek MT2502
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GPUPowerVR-
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Internal storage16 GB4 MB
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Memory RAM-4 MB
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Memory card-No
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Phonebook-Yes
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Call records-Yes
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OS
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OSwatchOS 5.0-
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Main camera
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Primary cameraNo-
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; RingtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11n
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USBNo
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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-GPSNo
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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
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Messaging Email-Email
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Java-No
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, heart rate
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Browser
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HTMLNo-
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Browser-No
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity270 mAh320 mAh
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Battery removableNon-removableNon-removable
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Standby time18 h-
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