Apple Watch Series 7 45mm Cellular vs Energizer Energy E220
Apple Watch Series 7 45mm Cellular
Energizer Energy E220
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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 900, 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, 66-
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GPRS-Yes
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EDGE-Yes
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Availability
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Oficially announced2021-092019-2
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Status2021-102019-2
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Design
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BuildGlass front, ceramic/sapphire crystal back, stainless steel frame-
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SIMeSIMDual SIM (Micro-SIM, dual stand-by)
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Height45 mm119 mm
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Width38 mm59 mm
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Thickness10.7 mm16.5 mm
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Weight51.5 g112 g
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsGraphite, Gold, SilverBlack, Blue
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Display
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Display typeRetina LTPO OLEDTFT capacitive touchscreen
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Physical size1.9 inches2.2 inches
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Resolution484 x 396 pixels240 x 320 pixels
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Pixel density326 ppi182 ppi
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Display colors1677721616777216
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ProtectionSapphire crystal glass-
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Display featuresAlways-on display, 1000 nits (peak)-
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Hardware
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CPUDual-coreDual-core 1.3 GHz Cortex-A7
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ChipsetApple S7Mediatek MT6572
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GPUPowerVR-
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Internal storage32 GB512 MB
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Memory RAM-256 MB
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Memory cardNo-
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Memory card max-32 GB
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OS
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OSwatchOS 8.0, upgradable to 8.1KaiOS
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Sound
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3.5mm jackNoYes
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LoudspeakerYesYes
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Earpiece-Yes
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Multimedia
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RadioNoFM 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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WLAN WiFi Hotspot-Yes
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WLAN WiFi Dual BandYes-
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USBNomicroUSB 2.0
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Bluetoothv5.0v2.1
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Bluetooth A2DPYes-
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bluetooth LEYes-
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NFCYes-
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GPSYes, with A-GPSNo
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GLONASSYes-
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GALILEOYes-
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BDSYes-
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QZSSYes-
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Features
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SensorsAccelerometer, always-on altimeter, barometer, compass, gyroscope, heart rate, SpO2, VO2max-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity309 mAh1000 mAh
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Battery removableNon-removable-
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Wireless chargingYes-
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SAR value
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SAR(head)0.96 W/kg-
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SAR EU(head)0.55 W/kg-
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SAR EU(body)0.50 W/kg-
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Cost
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Price770 USD-
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Main camera
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Main camera0.3 MP
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Primary camera video-Yes
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Selfie camera
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Selfie cameraNo
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