Apple Watch 40mm Series 4 vs Xiaomi Redmi 7A
Apple Watch 40mm Series 4
Xiaomi Redmi 7A
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900, CDMA 800
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3G networkHSDPAHSDPA 850, 900, 2100, TD-SCDMA 1900, 2000
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4G networkLTELTE frequency band 1(2100), 3(1800), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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EV-DO speed-3.1 Mbps download, 1.8 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2018-92019-5
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Status2018-92019-6
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Design
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BuildStainless Steel frame; all-ceramic/sapphire crystal backPolycarbonate
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SIMElectronic SIM card (Apple e-SIM)Dual SIM (Nano-SIM, dual SIM stand-by)
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Height40 mm146.3 mm
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Width34 mm70.41 mm
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Thickness10.7 mm9.55 mm
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Weight40 g165 g
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Waterproof50m-
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ColorsBlack, Gold, SilverBlack, Blue
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Display
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Display typeLTPO AMOLEDIPS capacitive touchscreen
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Physical size1.57 inches5.45 inches
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Resolution394 x 324 pixels720 x 1440 pixels
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Pixel density326 ppi295 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-coreQuad-core 1.95 GHz Cortex-A53
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CPU(second)quad-core 1.45 GHz Cortex-A53
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ChipsetApple S4Qualcomm Snapdragon 439
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GPUPowerVRAdreno 505
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Internal storage16 GB16, 32 GB
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Memory RAM-2, 3 GB
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Memory card-microSD, microSDHC, microSDXC
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Memory card max-256 GB
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OS
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OSwatchOS 5.0MIUI V10.2 (Android 9.0 Pie)
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Main camera
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Camera type-Single
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Primary cameraNo-
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Main camera13 MP, f/2.2 , 1.12 µm
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video-1080@30fps
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Primary camera flash-dual LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection, macro 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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Earpiece-Yes
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Multimedia
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RadioNoYes
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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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Wi-Fi display-Yes
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USBNomicroUSB 2.0
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USB On-The-Go-Yes
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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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Beidou-Yes
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QZSSYes-
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Features
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, proximity, light, compass
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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 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Talk time 2G-25 h
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Talk time 3G-25 h
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Standby time18 h-
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Selfie camera
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Selfie camera5 MP
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Selfie camera resolution-2592 x 1944 pixels
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Selfie camera video-1080p@30fps
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