Apple Watch Series 7 Aluminum 45mm Cellular vs Oppo A1k
Apple Watch Series 7 Aluminum 45mm Cellular
Oppo A1k
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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 850, 900, 1700(AWS), 1900, 2100WCDMA 850, 900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)
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LTE speed-LTE Cat 4, 150.8 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 announced2021-092019-4
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Status2021-102019-5
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Design
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BuildGlass front, ceramic/sapphire crystal back, aluminum framePlastic body
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SIMeSIMDual SIM (Nano-SIM, dual SIM stand-by)
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Height45 mm154.5 mm
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Width38 mm73.8 mm
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Thickness10.7 mm8.4 mm
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Weight38.8 g170 g
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsBlue, Green, Midnight, Red, StarlightBlack, Red
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Display
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Display typeRetina LTPO OLEDIPS capacitive touchscreen
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Physical size1.9 inches6.1 inches
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Resolution484 x 396 pixels720 x 1560 pixels
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Pixel density326 ppi282 ppi
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Display colors-16777216
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ProtectionIon-X strengthened glass2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
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Multitouch-Yes
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Display featuresAlways-on display, 1000 nits (peak)-
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Hardware
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CPU-Octa-core
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CPUDual-coreQuad-core 2 GHz Cortex-A53
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CPU(second)quad-core 1.5 GHz Cortex-A53
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ChipsetApple S7Mediatek Helio P22 (MT6762)
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GPUPowerVRPowerVR GE8320
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Internal storage32 GB32 GB
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Memory RAM-2 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 8.0, upgradable to 8.1ColorOS 6.0 (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 camera8 MP, f/2.2 , 1/3.2" , 1.4 µm
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Primary camera resolution-3264 x 2448 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, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection
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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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RadioNoNo
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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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Wi-Fi display-Yes
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WLAN WiFi Dual BandYes-
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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 A2DPA2DPYes
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bluetooth LELE-
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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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BDSYes-
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QZSSYes-
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Features
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SensorsAccelerometer, always-on altimeter, barometer, compass, gyro, heart rate, SpO2, VO2maxAccelerometer, proximity, light, compass, fingerprint
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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 capacity309 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Wireless chargingYes-
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SAR value
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SAR(head)0.96 W/kg-
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SAR EU(head)0.55 W/kg-
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SAR EU(body)0.50 W/kg-
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Cost
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Price500 USD-
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Selfie camera
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Selfie camera5 MP, f/2 , 1/5" , 1.12 µm
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Selfie camera resolution-2560 x 1920 pixels
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Selfie camera video-720p@30fps