Apple Watch Series 7 Aluminum 45mm vs DEXP GS155
Apple Watch Series 7 Aluminum 45mm
DEXP GS155
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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), 18(800)
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LTE speed-LTE, Cat4, 150 Mbps download, 51 Mbps upload
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GPRS-Yes
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EDGE-Yes
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Availability
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Oficially announced2021-092019-5
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Status2021-102019-5
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Design
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BuildGlass front, ceramic/sapphire crystal back, aluminum framePlastic
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SIMNoDual SIM (Nano-SIM/Nano-SIM(microSD), dual stand-by)
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Height45 mm148.9 mm
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Width38 mm70.9 mm
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Thickness10.7 mm8.4 mm
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Weight38.8 g158 g
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsBlue, Green, Midnight, Red, StarlightGold
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Display
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Display typeRetina LTPO OLEDIPS
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Physical size1.9 inches5.45 inches
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Resolution484 x 396 pixels480 x 960 pixels
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Pixel density326 ppi197 ppi
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Display colors-16777216
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ProtectionIon-X strengthened glass-
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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 1.3 GHz Cortex-A53
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ChipsetApple S7Mediatek MT6739WA
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GPUPowerVRPowerVR GE8100
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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 8.1 Oreo Go Edition
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Main camera
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Primary cameraNo-
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Main camera5 MP
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Interpolated resolution-8 MP
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Primary camera resolution-2592 x 1944 pixels
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Primary camera video-720p@30fps
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Primary camera flash-LED
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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, self-timer, 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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Bluetoothv5.0v4.2
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Bluetooth A2DPA2DPYes
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bluetooth LELE-
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NFCYesYes
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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, fingerprint, light, proximity
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Browser
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HTMLNoHTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity309 mAh2550 mAh
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Battery removableNon-removableNon-removable
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Wireless chargingYes-
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SAR value
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SAR(head)0.35 W/kg-
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SAR EU(head)0.25 W/kg-
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SAR EU(body)0.03 W/kg-
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Cost
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Price500 USD-
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Selfie camera
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Selfie camera2 MP
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Selfie camera interpolated resolution-5 MP
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Selfie camera resolution-1600 x 1200 pixels
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Selfie camera video-480p@30fps MP
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