Apple Watch Series 7 Aluminum 45mm Cellular vs Xiaomi Redmi K20
Apple Watch Series 7 Aluminum 45mm Cellular
Xiaomi Redmi K20
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900, CDMA 800
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1700, 1900, 2100, TD-SCDMA 1900, 2000
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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(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
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HSDPA speed-42 Mbps
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HSUPA speed-5.76 Mbps
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EV-DO speed-3.1 Mbps download, 1.8 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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Status2021-102019-6
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Design
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BuildGlass front, ceramic/sapphire crystal back, aluminum frameAluminium alloy, glass
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SIMeSIMDual SIM (Nano-SIM, dual SIM stand-by)
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Height45 mm156.7 mm
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Width38 mm74.3 mm
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Thickness10.7 mm8.8 mm
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Weight38.8 g191 g
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WaterproofIP6X (50m)-
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Dust proofIP6X-
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ColorsBlue, Green, Midnight, Red, StarlightBlack, Blue, Red
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Display
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Display typeRetina LTPO OLEDSuper AMOLED capacitive touchscreen
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Physical size1.9 inches6.39 inches
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Resolution484 x 396 pixels1080 x 2340 pixels
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Pixel density326 ppi403 ppi
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Display colors-16777216
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ProtectionIon-X strengthened glass2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 6
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Multitouch-Yes
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Display featuresAlways-on display, 1000 nits (peak)HDR 10, Always-On display
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Hardware
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CPU-Octa-core
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CPUDual-coreDual-core 2.2 GHz Kryo 470
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CPU(second)Hexa-core 1.8 GHz Kryo 470
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ChipsetApple S7Qualcomm Snapdragon 730
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GPUPowerVRAdreno 618
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Internal storage32 GB64, 128, 256 GB
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Memory RAM-6, 8 GB
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Memory card-No
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Storage-UFS 2.1
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OS
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OSwatchOS 8.0, upgradable to 8.1MIUI V10.2 (Android 9.0 Pie)
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Main camera
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Camera type-Triple
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Primary cameraNo-
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Main camera48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm, 2x optical zoom
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8 MP, f/2.4 , 53 mm, 1/4" , 1.12 µm
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13 MP, f/2.4 , 12 mm, 1/3" , 1.12 µm
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Primary camera resolution-8000 x 6000 pixels
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Primary camera video-2160p@30fps, 1080p@960fps
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Primary camera flash-dual LED flash
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Camera features-Autofocus, continuous shooting, digital zoom, optical zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, RAW, phase detection
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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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RadioNoNo
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Connectivity
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WLANWi-Fi 802.11b, 802.11g, 802.11nWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi Hotspot-Yes
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WLAN WiFi Direct-Yes
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Wi-Fi display-Yes
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WLAN WiFi Dual BandYesYes
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USBNoType-C reversible connector
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USB On-The-Go-Yes
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Bluetoothv5.0v5.0
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Bluetooth A2DPA2DPYes
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bluetooth LELEYes
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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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GALILEOYes-
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Beidou-Yes
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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, proximity, light, compass, in-display fingerprint, gyroscope, barometer, hall, step detector, step counter
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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 mAh4000 mAh
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Battery removableNon-removableNon-removable
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Fast battery charging-Qualcomm Quick Charge 4+
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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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Price500 USD-
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Selfie camera
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Selfie camera20 MP, f/2.2 , 18 mm
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Selfie camera resolution-5184 x 3880 pixels
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Selfie camera video-1080p@30fps