Sony SmartWatch 3 SWR50 vs Yezz C21
Sony SmartWatch 3 SWR50
Yezz C21
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Network
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2G networkGSM 850, 900, 1800, 1900
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GPRSUp to 48 kbps
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EDGENo
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Availability
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Oficially announced2014-22016-7
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Status2014-102016-8
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Design
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BuildStainless Steel-
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SIMNoDual SIM (Mini-SIM)
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Height51 mm113 mm
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Width36 mm48.5 mm
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Thickness10 mm14.6 mm
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Weight76 g70 g
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ColorsBlack, Leather Black, Leather Brown, Silver, YellowBlack, Blue, Red, White
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Display
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Display typeTFT capacitive touchscreenTFT
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Physical size1.6 inches1.8 inches
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Resolution320 x 320 pixels128 x 160 pixels
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Pixel density283 ppi114 ppi
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Display colors66560262144
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Hardware
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CPUQuad-core 1.2 GHz ARM Cortex-A7321 MHz
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Chipset-Spreadtrum SC6531DA
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Memory RAM512 MB4 MB
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Internal storage4 GB4 MB
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Memory cardmicroSD
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Memory card max-8 GB
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Phonebook-Yes
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Call records-Yes
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OS
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OSAndroid Wear OS-
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; MP3, WAV ringtonesVibration, Polyphonic, MP3
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Multimedia
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RadioNo-
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Radio FM-Stereo FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g
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USBYesmicroUSB 2.0
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Bluetoothv4.0v2.1
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GPSYesNo
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Features
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Messaging SMSSMSSMS
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Messaging EmailEmail-
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Messaging IMIM-
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WAP-Yes
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JavaNoNo
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SensorsAccelerometer, compass, gyro-
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Browser
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BrowserNo-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity420 mAh600 mAh
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Battery removableNon-removableRemovable
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Talk time48 h3 h
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Standby time96 h180 h
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Main camera
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Primary camera-VGA
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Primary camera video-video
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Camera features-No
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Selfie camera
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Secondary camera-No
