Apple Watch Series 7 Aluminum 41mm vs Energizer Energy E551S
Apple Watch Series 7 Aluminum 41mm
Energizer Energy E551S
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Network
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2G networkN/AGSM 850, 900, 1800, 1900
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3G networkN/AHSDPA 900, 2100
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4G networkN/ALTE frequency band 1(2100), 3(1800), 7(2600), 8(900), 20(800), 28(700)
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HSDPA speed-42.2 Mbps
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HSUPA speed-11.5 Mbps
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LTE speed-LTE, Cat4, 150 Mbps download, 50 Mbps upload
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GPRS-Class 12
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EDGE-Class 12
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Availability
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Status2021-102019-2
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Oficially announced2021-092019-2
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Design
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BuildGlass front, ceramic/sapphire crystal back, aluminum framePlastic
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SIMNoHybrid Dual SIM (Micro-SIM/Nano-SIM, dual stand-by)
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Height41 mm-
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Width35 mm-
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Thickness10.7 mm-
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Weight32 g-
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsBlue, Green, Midnight, Red, StarlightBlack
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Display
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Display typeRetina LTPO OLEDTFT capacitive touchscreen
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Physical size1.69 inches5.5 inches
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Resolution430 x 352 pixels480 x 854 pixels
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Pixel density326 ppi178 ppi
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Display colors-16777216
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ProtectionIon-X strengthened glassScratch resistant
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Multitouch-Yes
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Display featuresAlways-on display, 1000 nits (peak)-
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Hardware
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CPUDual-coreQuad-core 1.25 GHz Cortex-A53
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ChipsetApple S7Mediatek MT6737M
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GPUPowerVRMali-T720MP2
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Internal storage32 GB8 GB
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Memory RAM-1 GB
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Memory card-microSD, microSDHC, microSDXC
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Memory card max-64 GB
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OS
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OSwatchOS 8.0, upgradable to 8.1Android 8.0 Oreo Go Edition
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Main camera
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Primary cameraNo-
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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 flash-LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, scene-mode
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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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Bluetoothv5.0v4.0
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Bluetooth A2DPA2DPYes
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bluetooth LELEYes
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NFCYes-
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GPSYes, with A-GPSYes, with A-GPS
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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, gyro, heart rate, SpO2, VO2maxAccelerometer
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Browser
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HTMLNo-
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity284 mAh2500 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)0.39 W/kg-
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SAR EU(head)0.26 W/kg-
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SAR EU(body)0.40 W/kg-
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Cost
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Price500 USD-
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Selfie camera
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Selfie camera5 MP
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Selfie camera resolution-2560 x 1920 pixels
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