Apple Watch Series 3 vs Celkon A355
Apple Watch Series 3
Celkon A355
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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3G networkHSDPA 850, 900, 2100, 800 - Europe, Australia; HSDPA 850, 1700(AWS), 1900, 800 - USA, LATAM, Canada; HSDPA 2100 - ChinaHSDPA
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4G networkLTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850) - Europe, Australia; LTE frequency band 2(1900), 4(1700/2100), 5(850), 12(700), 13(700), 17(700), 18(800), 19(800), 25(1900), 26(850), 41(2500) - USA, LATAM, Canada; LTE frequency band 1(2100), 3(1800), 39(1900), 40(2300), 41(2500) - China-
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HSPA speedHSPAHSPA
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LTE speedLTE-
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2017-92015-5
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Status2017-92015-5
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Design
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BuildStainless Steel/Ceramic back-
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SIMElectronic SIM card (Apple e-SIM)Dual SIM
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Height42.5 mm115.3 mm
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Width36.4 mm63.3 mm
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Thickness11.4 mm10.2 mm
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Weight52.8 g97.5 g
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Waterproof50m-
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ColorsSilver, Space BlackDark Blue, Light Blue, Red, White, Yellow
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Display
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Display typeAMOLED capacitive touchscreenCapacitive touchscreen
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Physical size1.65 inches3.5 inches
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Resolution390 x 312 pixels320 x 480 pixels
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Pixel density303 ppi165 ppi
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Display colors16777216-
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ProtectionSapphire crystal glass-
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MultitouchYes-
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Display features3D Touch display, 1000 nits-
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Hardware
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CPUDual-core1 GHz
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ChipsetApple S3Spreadtrum 7715
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GPUPowerVRMali-400
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Memory RAM768 MB256 MB
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Internal storage16 GB512 MB
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Memory cardmicroSD
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Memory card max-32 GB
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OS
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OSwatchOS 4.0Android OS, v4.4.2 (KitKat)
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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-FM radio
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11b, 802.11g, 802.11n
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USBYes
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Bluetoothv4.2Yes
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Bluetooth A2DPYes-
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bluetooth LEYes-
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NFCYes-
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GPSYes, with A-GPSYes
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GLONASSYes-
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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 IMIM-
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Messaging Push MailPush Mail-
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JavaNoNo
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SensorsAccelerometer, barometer, gyro, heart rateAccelerometer
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Browser
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HTML-Yes
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BrowserNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity-1200 mAh
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Battery removableNon-removable-
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Talk time--
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Standby time18 h-
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Main camera
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Main camera2 MP
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Primary camera resolution-1600 x 1200 pixels
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Primary camera video-video
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Primary camera flash-LED flash
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Camera features-Yes
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Selfie camera
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Secondary camera-VGA camera
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