Apple Watch Series 7 45mm Cellular vs Apple Watch Series 9 45mm
Apple Watch Series 7 45mm Cellular
Apple Watch Series 9 45mm
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66LTE frequency band 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66
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Availability
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Oficially announced2021-092023-09
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Status2021-102023-09
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Design
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BuildGlass front, ceramic/sapphire crystal back, stainless steel frameGlass front, ceramic/sapphire crystal back, stainless steel frame
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SIMeSIMeSIM
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Height45 mm45 mm
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Width38 mm38 mm
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Thickness10.7 mm10.7 mm
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Weight51.5 g51.5 g
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WaterproofIP6X (50m)IP6X (50m)
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Dust proofIP6XIP6X
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ColorsGraphite, Gold, SilverGraphite, Gold, Silver
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Display
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Display typeRetina LTPO OLEDRetina LTPO OLED
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Physical size1.9 inches1.9 inches
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Resolution484 x 396 pixels484 x 396 pixels
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Pixel density326 ppi326 ppi
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Display colors1677721616777216
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ProtectionSapphire crystal glassSapphire crystal glass
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Display featuresAlways-on display, 1000 nits (peak)Always-on display, 2000 nits (peak)
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Hardware
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CPUDual-coreDual-core
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ChipsetApple S7Apple S9
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GPUPowerVRPowerVR
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Internal storage32 GB64 GB
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Memory cardNoNo
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OS
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OSwatchOS 8.0, upgradable to 8.1watchOS 10
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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Multimedia
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RadioNoNo
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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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WLAN WiFi Dual BandYesYes
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USBNoNo
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Bluetoothv5.0v5.3
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCYesYes
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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QZSSYesYes
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Features
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SensorsAccelerometer, always-on altimeter, barometer, compass, gyroscope, heart rate, SpO2, VO2maxAccelerometer, always-on altimeter, barometer, compass, gyroscope, heart rate, SpO2, temperature (body), VO2max
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity309 mAh308 mAh
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Battery removableNon-removableNon-removable
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Wireless chargingYes-
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Fast wireless charging-Yes (80% in 45 min)
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SAR value
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SAR(head)0.96 W/kg1.02 W/kg
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SAR EU(head)0.55 W/kg0.64 W/kg
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SAR EU(body)0.50 W/kg-
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Cost
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Price770 USD900 USD
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