Apple Watch 42mm vs Oppo A39
Apple Watch 42mm
Oppo A39
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 900, 2100
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4G network-LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 28(700), 38(2600), 39(1900), 40(2300), 41(2500)
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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, Cat4, 150 Mbps download, 50 Mbps upload
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-92017-3
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Status2015-42017-3
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Design
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BuildStainless Steel-
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SIMNoDual SIM (Nano-SIM, dual stand-by)
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Height42 mm149.1 mm
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Width35.9 mm72.9 mm
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Thickness10.5 mm7.7 mm
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Weight50 g147 g
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ColorsBlack Link Bracelet, Blue/Stone Leather Loop, Black/Blue/Brown Buckle, Stainless Steel/Red, WhiteGold, Rose Gold
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Display
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Display typeAMOLED capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size1.65 inches5.2 inches
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Resolution390 x 312 pixels720 x 1280 pixels
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Pixel density303 ppi282 ppi
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Display colors1677721616777216
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Protection-Corning Gorilla Glass 4
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Multitouch-Yes
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Hardware
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CPU520 MHzOcta-core
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ChipsetApple S1Mediatek MT6750
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GPUPowerVR SGX543Mali-T860MP2
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Memory RAM512 MB3 GB
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Internal storage8 GB32 GB
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Memory cardmicroSD
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Memory card max-256 GB
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OS
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OSwatchOS 1.0Android 5.1 (Lollipop)
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; RingtonesVibration; MP3, WAV ringtones
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Multimedia
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RadioNo-
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Radio FM-FM 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
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WLAN WiFi Hotspot-Yes
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USBmicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv4.0v4.0
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Bluetooth A2DP-Yes
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bluetooth LEYes-
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GPSNoYes, with A-GPS
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Features
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Messaging SMSSMS(threaded view)SMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIM-
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Messaging Push Email-Push Email
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Messaging Push MailPush Mail-
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JavaNoNo
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SensorsAccelerometer, gyro, heart rateAccelerometer, compass, proximity
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Browser
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HTML-HTML5
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BrowserNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity250 mAh2900 mAh
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Battery removableNon-removableNon-removable
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Talk time3 h 40 min-
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Standby time22 h-
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Main camera
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Main camera13 MP, f/2.2
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Primary camera video-1080p@30fps
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Primary camera Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-1/3" sensor size, HDR, face detection, geo-tagging, panorama, touch focus
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Selfie camera
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Selfie camera5 MP, f/2.4 , 1/4" , 1.4 µm