Apple Watch 40mm Series 4 Aluminum No LTE vs Oppo A31
Apple Watch 40mm Series 4 Aluminum No LTE
Oppo A31
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Network
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2G networkNoGSM 850, 900, 1800, 1900
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3G networkNoHSDPA 850, 900, 2100
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4G networkNoLTE frequency band 1(2100), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed-42 Mbps
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HSUPA speed-5.76 Mbps
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LTE speed-LTE-A
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GPRSNoYes
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EDGENoYes
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Availability
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Oficially announced2018-92020-02
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Status2018-92020-02
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Design
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BuildAluminum frame; all-ceramic/sapphire crystal backPlastic
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SIMNoDual SIM (Nano-SIM, dual stand-by)
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Height40 mm163.9 mm
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Width34 mm75.5 mm
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Thickness10.7 mm8.3 mm
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Weight30 g180 g
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Waterproof50m-
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ColorsGray, Gold, SilverBlack, White
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Display
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Display typeLTPO AMOLEDIPS capacitive touchscreen
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Physical size1.57 inches6.5 inches
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Resolution394 x 324 pixels720 x 1600 pixels
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Pixel density326 ppi270 ppi
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Display colors1677721616777216
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ProtectionIon-X strengthened glassScratch resistant
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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 2.3 GHz Cortex-A53
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CPU(second)quad-core 1.8 GHz Cortex-A53
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ChipsetApple S4Mediatek MT6765V/CB Helio P35
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GPUPowerVRPowerVR GE8320
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Internal storage16 GB128 GB
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Memory RAM-4 GB
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Memory card-microSD, microSDHC, microSDXC
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Memory card max-256 GB
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Storage-eMMC 5.1
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OS
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OSwatchOS 5.0ColorOS 6.1 (Android 9.0 Pie)
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Main camera
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Camera type-Triple
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Primary cameraNo-
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Main camera12 MP, f/1.8
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2 MP, f/2.4 , 27 mm
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2 MP, f/2.4
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Primary camera resolution-4096 x 3072 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, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus
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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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RadioNoFM Radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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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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WLAN WiFi Dual Band-Yes
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USBNomicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv5.0v5.0
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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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GLONASSYes-
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GALILEOYes-
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BDS-Yes
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QZSSYes-
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Features
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SensorsAccelerometer, barometer, gyro (second gen), heart rateAccelerometer, compass, fingerprint, light, 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 capacity-4230 mAh
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Battery removableNon-removableNon-removable
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Standby time18 h-
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Selfie camera
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Selfie camera8 MP, f/2.0
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1/5.0" , 1.75 µm
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Selfie camera resolution-3264 x 2448 pixels
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Selfie camera video-1080p@30fps
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Cost
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Price-200 USD
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