Huawei Watch 2 vs vivo Y51
Huawei Watch 2
vivo Y51
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPATD-SCDMA
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4G networkLTE-
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HSPA speedHSPA-
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TD-SCDMA speed-TD-SCDMA
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LTE speedLTE-
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TD-LTE speed-TD-LTE
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2017-22015-12
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Status2017-32015-12
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Design
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SIMNano-SIM or e-SIMDual SIM
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Height48.9 mm143.8 mm
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Width45 mm71.7 mm
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Thickness12.6 mm7.5 mm
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Weight57 g157 g
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WaterproofIP68 - 1.5 m and 30 minutes-
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Dust proofIP68-
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ColorsCarbon Black, Concrete Grey, Dynamic OrangeWhite
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Display
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Display typeAMOLED capacitive touchscreenIPS LCD capacitive touchscreen
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Physical size1.2 inches5.0 inches
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Resolution390 x 390 pixels540 x 960 pixels
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Pixel density326 ppi220 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass-
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MultitouchYes-
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Hardware
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CPUQuad-core 1.1 GHzQuad-core 1.2 GHz
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ChipsetQualcomm Snapdragon Wear 2100-
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Memory RAM768 MB2 GB
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Internal storage4 GB16 GB
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Memory cardmicroSD
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Memory card max-128 GB
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OS
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OSAndroid Wear OS 2.0Android OS, v5.0.2 (Lollipop)
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV 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
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USBmicroUSB 2.0
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Bluetoothv4.1Yes
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bluetooth LEYes-
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYes-
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BDS-Yes
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Features
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Messaging SMSSMSSMS(threaded view)
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Messaging MMS-MMS
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Messaging EmailEmailEmail
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Messaging IMIMIM
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Messaging Push Mail-Push Mail
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JavaNoNo
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SensorsAccelerometer, barometer, compass, 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 capacity420 mAh2350 mAh
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Battery removableNon-removable-
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Fast battery chargingYes-
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Talk time48 h-
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Standby time--
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Main camera
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Main camera8 MP
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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 Autofocus-autofocus
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Primary camera flash-LED flash
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Camera features-Geo-tagging, HDR, face detection, panorama, touch focus
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Selfie camera
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Selfie camera5 MP