Apple Watch Series 7 41mm Cellular vs Sigma Mobile X-style Tab A83
Apple Watch Series 7 41mm Cellular
Sigma Mobile X-style Tab A83
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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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Status2021-102019-1
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Oficially announced2021-092019-1
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Design
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BuildGlass front, ceramic/sapphire crystal back, stainless steel framePlastic, metal
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SIMeSIMMicro-SIM
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Height41 mm123 mm
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Width35 mm207 mm
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Thickness10.7 mm9 mm
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Weight42.3 g360 g
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsGraphite, Gold, SilverBlack, Gray
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Display
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Display typeRetina LTPO OLEDIPS capacitive touchscreen
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Physical size1.69 inches8 inches
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Resolution430 x 352 pixels1280 x 800 pixels
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Pixel density326 ppi189 ppi
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Display colors1677721616777216
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ProtectionSapphire crystal 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-A7
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ChipsetApple S7Mediatek MT8321
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GPUPowerVRMali-400 MP2
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Internal storage32 GB16 GB
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Memory RAM-2 GB
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Memory cardNomicroSD, microSDHC, microSDXC
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Memory card max-32 GB
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OS
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OSwatchOS 8.0, upgradable to 8.1Android 8.1 Oreo
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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 Direct-Yes
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WLAN WiFi Dual BandYes-
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USBNomicroUSB 2.0
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USB On-The-Go-Yes
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Bluetoothv5.0v4.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth EDR-Yes
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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, gyroscope, heart rate, SpO2, VO2maxAccelerometer, proximity, light
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity284 mAh4000 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)1.10 W/kg-
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SAR EU(head)0.70 W/kg-
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SAR EU(body)1.50 W/kg-
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Cost
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Price770 USD-
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Main camera
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Camera type-Single
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Main camera5 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 flash
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Camera features-Continuous shooting, digital zoom, geotagging, panorama, HDR, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode
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Selfie camera
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Selfie camera2 MP
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Selfie camera resolution-1600 x 1200 pixels
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Selfie camera video-480p@30fps
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Browser
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HTML-HTML5
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