Samsung Galaxy M21s vs Xiaomi Mi Watch (China)
Samsung Galaxy M21s
Xiaomi Mi Watch (China)
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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 850, 900, 1900
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 19(800), 20(800), 26(850), 39(1900), 40(2300), 41(2500)
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE-A, 603 Mbps download, 150 Mbps upload-
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GPRSYes-
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EDGEYes-
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Availability
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Oficially announced2020-112019-11
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Status2020-112019-11
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Design
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BuildGlass front (Gorilla Glass 3), plastic back, plastic frame-
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SIMSingle SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by)eSIM
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Height159.2 mm44.7 mm
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Width75.1 mm36.9 mm
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Thickness8.9 mm12.3 mm
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Weight191 g44 / 56 g
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ColorsBlack, BlueBlack, Silver
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Display
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Display typeSuper AMOLEDSuper AMOLED capacitive touchscreen
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Physical size6.4 inches1.78 inches
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Resolution1080 x 2340 pixels368 x 448 pixels
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Pixel density403 ppi326 ppi
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Display colors1677721616777216
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Protection2.5D curved glass screen, Corning Gorilla Glass 3-
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Display features420 nits (typ), Infinity U Display-
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Hardware
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CPUOcta-core-
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CPUQuad-core 2.3 GHz Cortex-A73Quad-core 1.2 GHz Cortex-A7
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CPU(second)quad-core 1.7 GHz Cortex-A53
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ChipsetExynos 9611Qualcomm Snapdragon Wear 3100
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GPUMali-G72 MP3Adreno 304
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Internal storage64, 128 GB8 GB
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Memory RAM4, 6 GB1 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Memory card max512 GB-
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StorageUFS 2.1-
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OS
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OSAndroid 10, One UI 2.5Proprietary wearable platform
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Main camera
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Camera typeTriple-
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Main camera(wide) , 64 MP, f/1.8 , 26 mm, 1/1.72" , 0.8 µm
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(ultrawide) , 8 MP, f/2.2 , 1/4.0" , 1.12 µm
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(depth) , 5 MP, f/2.2
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Primary camera resolution9280 x 6920 pixels-
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Primary camera video4K@30fps, 1080p@30fps, gyro-EIS-
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Primary camera flashLED flash-
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Camera featuresAutofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus-
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Selfie camera
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Selfie camera typeSingle-
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Selfie camera(wide) , 32 MP, f/2.0 , 26 mm, 1/2.8" , 0.8 µm
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Selfie camera video1080p@30fps-
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes
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EarpieceYes-
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Multimedia
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RadioFM RadioNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-Fi 802.11b, 802.11g, 802.11n
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WLAN WiFi HotspotYes-
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WLAN WiFi DirectYes-
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WLAN WiFi Dual BandYes-
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USBType-C 2.0No
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Bluetoothv5.0v4.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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NFCNoYes
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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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BDSYesYes
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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, barometer, gyro, heart rate
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Browser
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HTMLHTML5-
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Battery
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Battery typeLi-PoLi-Ion
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Battery capacity6000 mAh570 / 590 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingFast Charging-
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Wireless charging-Yes
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Tests and performance
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Antutu186200 (v8)-
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Cost
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Price280 USD170 USD
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