Apple Watch 42mm vs Yezz Billy 4
Apple Watch 42mm
Yezz Billy 4
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Network
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2G networkGSM 850, 900, 1800, 1900
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3G network-HSDPA 850, 1900
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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GPRSYes
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EDGEYes
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Availability
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Oficially announced2014-92014-6
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Status2015-42014-10
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Design
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BuildStainless Steel-
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SIMNoDual SIM (Micro-SIM)
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Height42 mm122.5 mm
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Width35.9 mm64.4 mm
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Thickness10.5 mm9.9 mm
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Weight50 g109 g
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ColorsBlack Link Bracelet, Blue/Stone Leather Loop, Black/Blue/Brown Buckle, Stainless Steel/Red, WhiteBlack, Blue, Champing Gold, Gun Metal, Red, White, Yellow
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Display
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Display typeAMOLED capacitive touchscreenTFT capacitive touchscreen
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Physical size1.65 inches4.0 inches
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Resolution390 x 312 pixels480 x 800 pixels
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Pixel density303 ppi233 ppi
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Display colors1677721616777216
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Hardware
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CPU520 MHz1.2 GHz Quad-core ARM Cortex-A7
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ChipsetApple S1Qualcomm MSM8212 Snapdragon 200
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GPUPowerVR SGX543Adreno 302
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Memory RAM512 MB512 MB
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Internal storage8 GB4 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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OSwatchOS 1.0Microsoft Windows Phone 8.1
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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-Stereo 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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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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GLONASS-Yes
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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 IMIMIM
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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, 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 mAh1300 mAh
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Battery removableNon-removable-
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Talk time3 h 40 min-
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Talk time 2G-7 h
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Talk time 3G-4 h 30 min
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Standby time22 h-
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Standby time 2G-350 h
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Standby time 3G-300 h
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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-720p@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, touch focus
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Selfie camera
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Selfie camera1.3 MP