Apple Watch 42mm (1st gen) vs Yezz Classic C21
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Apple Watch 42mm (1st gen)
Yezz Classic C21
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Network
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2G networkN/AGSM 850, 900, 1800, 1900
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GPRSNoYes
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EDGENo
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Availability
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Oficially announced2014-92014-3
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Status2015-42014-4
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Design
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BuildStainless Steel/Ceramic back-
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SIMNoDual SIM (Mini-SIM)
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Height42 mm106 mm
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Width35.9 mm45 mm
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Thickness10.5 mm14.5 mm
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Weight50 g73 g
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WaterproofIPX7 certified, 1 m and 30 minutes-
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ColorsBlack Link Bracelet, Blue/Stone/White/Storm Gray Leather Loop, Brown/Black/Blue/Marine Blue Buckle, Link Bracelet, Pearl Woven Nylon, Silver/Space Black Milanese Loop, Space Black Stainless Steel/Black, Stainless Steel/Red, WhiteBlack, Blue, Gray, Green, Purple, Red, White
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Display
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Display typeAMOLED capacitive touchscreenTFT
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Physical size1.65 inches1.8 inches
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Resolution390 x 312 pixels128 x 160 pixels
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Pixel density303 ppi114 ppi
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Display colors1677721666560
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ProtectionSapphire crystal glass-
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MultitouchYes-
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Display features3D Touch display, 450 nits-
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Hardware
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CPU520 MHz ARM Cortex-A7
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ChipsetApple S1-
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GPUPowerVR SGX543-
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Memory RAM512 MB-
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Internal storage8 GB64 MB
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Memory cardmicroSD
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Memory card max-8 GB
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OS
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OSwatchOS 1.0-
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; RingtonesVibration; ringtones
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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, 802.11n
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USBYes
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Bluetoothv4.0v2.1
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bluetooth LEYes-
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NFCYes-
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GPSNoNo
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Features
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Messaging SMSSMS(threaded view)SMS
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Messaging MMS-MMS
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Messaging EmailEmail-
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Messaging IMIMIM
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Messaging Push MailPush Mail-
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WAP-Yes
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JavaNoNo
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SensorsAccelerometer, gyro, heart rate-
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Browser
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BrowserNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity250 mAh600 mAh
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Battery removableNon-removable-
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Talk time-4 h
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Standby time18 h150 h
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Main camera
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Primary camera resolution-640 x 480 pixels
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Primary camera video-no
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Selfie camera
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Secondary camera-No
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