Apple Watch 40mm Series 5 Aluminum (Wi-Fi) vs ZTE Blade A51
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Apple Watch 40mm Series 5 Aluminum (Wi-Fi)
ZTE Blade A51
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Network
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2G networkN/AGSM 850, 900, 1800, 1900
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3G networkN/AHSDPA 850, 900, 1900, 2100
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4G networkN/ALTE frequency band 1, 3, 5, 7, 8, 20, 28, 38, 40, 41
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE, Cat6, 301 Mbps download, 51 Mbps upload
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GPRS-Yes
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EDGE-Yes
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Availability
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Oficially announced2019-92021-05
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Status2019-92021-05
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Design
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BuildAluminum frame; all-ceramic/sapphire crystal backPolycarbonate
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SIMNoDual SIM (Nano-SIM, dual stand-by)
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Height40 mm166.5 mm
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Width34 mm75.6 mm
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Thickness10.7 mm8.5 mm
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Weight30 g173 g
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Waterproof50 m-
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ColorsGray, Gold, SilverBlue, Gray
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Display
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Display typeLTPO OLED capacitive touchscreenIPS LCD
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Physical size1.57 inches6.52 inches
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Resolution394 x 324 pixels720 x 1600 pixels
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Pixel density326 ppi269 ppi
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Display colors1677721616777216
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ProtectionIon-X strengthened glass-
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Display features3D Touch display, 1000 nits max brightness, always-on display-
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Hardware
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CPU-Octa-core
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CPUQuad-core 1.6 GHz Cortex-A55
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CPU(second)quad-core 1.2 GHz Cortex-A55
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ChipsetApple S5Unisoc SC9863A
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GPUPowerVRIMG8322
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Internal storage32 GB32, 64 GB
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Memory RAM-2 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-512 GB
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OS
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OSwatchOS 6.0Android 11 Go Edition
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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Earpiece-Yes
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Multimedia
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RadioNoFM 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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USBNoType-C 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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NFCYesYes
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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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QZSSYes-
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Features
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SensorsAccelerometer, barometer, compass, gyroscope, heart rateAccelerometer, fingerprint, proximity
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity-3200 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Yes
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Wireless chargingYes-
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Standby time18 h-
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Cost
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Price500 USD90 USD
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Main camera
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Camera type-Dual
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Main camera13 MP
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2 MP
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Primary camera resolution-4160 x 3120 pixels
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Primary camera video-1080p@30fps
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Primary camera flash-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 autofocus
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Selfie camera
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Selfie camera type-Single
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Selfie camera5 MP, f/2.0 , 1.0 µm
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Selfie camera resolution-2560 x 1920 pixels
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Selfie camera features-Face unlock, face detection
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Selfie camera video-1080p@30fps
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Browser
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HTML-HTML5
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Tests and performance
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Antutu-101300 (v8)
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Geekbench(single-core)-147 (v5.2)
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Geekbench(multi-core)-808 (v5.2)
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