Samsung Galaxy J7 Duo vs Xiaomi Mi Watch (China)
Samsung Galaxy J7 Duo
Xiaomi Mi Watch (China)
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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, 1900, 2100HSDPA 850, 900, 1900
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500)LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850), 39(1900), 40(2300), 41(2500)
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LTE speedLTE, 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 announced2018-42019-11
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Status2018-42019-11
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Design
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BuildMetal-
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SIMSingle SIM (Micro-SIM) or Dual SIM (Micro-SIM, dual stand-by)eSIM
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Height153.5 mm44.7 mm
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Width77.2 mm36.9 mm
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Thickness8.2 mm12.3 mm
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Weight174 g44 / 56 g
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ColorsBlack, Gold, Rose Gold, WhiteBlack, Silver
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Display
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Display typeSuper AMOLED capacitive touchscreenSuper AMOLED capacitive touchscreen
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Physical size5.5 inches1.78 inches
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Resolution720 x 1280 pixels368 x 448 pixels
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Pixel density267 ppi326 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen-
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MultitouchYes-
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Hardware
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CPUOcta-core-
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CPUDual-core 2.2 GHz Cortex-A73Quad-core 1.2 GHz Cortex-A7
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CPU(second)Hexa-core 1.6 GHz Cortex-A53
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ChipsetExynos 7885 OctaQualcomm Snapdragon Wear 3100
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GPUMali-G71Adreno 304
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Memory RAM4 GB1 GB
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Internal storage32 GB8 GB
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Memory cardmicroSDNo
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Memory card max256 GB-
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OS
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OSAndroid 8.0 (Oreo)Proprietary wearable platform
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Main camera
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Camera typeDual-
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Main camera13 MP, f/1.9
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5 MP, f/1.9
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Primary camera resolution4160 x 3120 pixels-
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Primary camera video1080p@30fps-
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Primary camera Autofocusautofocus-
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Primary camera flashLED flash-
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Camera featuresGeo-tagging, HDR, face detection, panorama, touch focus-
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Selfie camera
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FlashLED flash-
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Selfie camera8 MP, f/1.9
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Selfie camera resolution3264 x 2448 pixels-
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Selfie camera video720p@30fps-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtones-
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EarpieceYes-
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Multimedia
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Radio-No
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Radio FMFM radio-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11acWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBYesNo
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Bluetoothv4.2v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFC-Yes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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BDSYesYes
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Features
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Messaging SMSSMS(threaded view)-
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Messaging MMSMMS-
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Messaging EmailEmail-
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Messaging IMIM-
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Messaging Push EmailPush Email-
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SensorsFingerprint (front-mounted), accelerometer, proximityAccelerometer, barometer, gyro, heart rate
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity3000 mAh570 / 590 mAh
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Battery removableRemovableNon-removable
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Wireless charging-Yes
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Cost
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Price-170 USD
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