Samsung Galaxy S21 Ultra 5G vs Xiaomi Redmi Note 12 (China)
Samsung Galaxy S21 Ultra 5G
Xiaomi Redmi Note 12 (China)
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMAGSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DOHSDPA 850, 900, 1900, 2100; CDMA2000 1xEV-DO
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71LTE frequency band 1, 3, 5, 7, 8, 34, 38, 39, 40, 41
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5G network5G band SA/NSA/Sub6/mmWave5G band 1, 3, 5, 8, 41, 77, 78 SA/NSA
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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EV-DO speed-EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload
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LTE speedLTE-A (CA), 2000 Mbps download, 200 Mbps uploadLTE, Cat12, 603 Mbps download, 102 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-012022-10
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Status2021-012022-11
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Design
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BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum framePlastic, glass
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SIMSingle SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height165.1 mm165.9 mm
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Width75.6 mm76.2 mm
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Thickness8.9 mm8 mm
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Weight227 (Sub6) / 229 (mmWave) g188 g
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PaymentSamsung Pay (Visa, MasterCard certified)-
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WaterproofIP68 (1.5m and 30 mins)-
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Splash resistant-IP53
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Dust proofIP68IP53
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ColorsBlack, Brown, Silver, Navy, TitaniumBlack, Blue, White
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Display
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Display typeDynamic AMOLED 2XSamsung AMOLED
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Physical size6.8 inches6.67 inches
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Resolution1440 x 3200 pixels1080 x 2400 pixels
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Pixel density515 ppi395 ppi
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Display colors1677721616777216
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ProtectionScratch resistant, Corning Gorilla Glass VictusScratch resistant, 2.5D curved glass screen
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Display features120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display120Hz, 1200 nits (peak)
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DxOMark display score91-
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.9 GHz Cortex-X1Dual-core 2.0 GHz Cortex-A78
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CPU(second)Triple-core 2.80 GHz Cortex-A78Hexa-core 1.8 GHz Cortex-A55
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CPU(third)Quad-core 2.2 GHz Cortex-A55
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ChipsetExynos 2100Qualcomm SM4375 Snapdragon 4 Gen 1
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GPUMali-G78 MP14Adreno 619
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Internal storage128, 256, 512 GB128, 256 GB
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Memory RAM12, 16 GB4, 6, 8 GB
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Memory cardNoNo
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StorageUFS 3.1UFS 2.2
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OS
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OSAndroid 11, One UI 3.1Android 12, MIUI 13
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Main camera
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Camera typeQuadDual
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Main camera(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm(wide) , 48 MP, 24 mm, 1/2" , 0.8 µm
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(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom(depth) , 2 MP, f/2.4
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(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.24" , 1.22 µm, 3x optical zoom
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(ultrawide) , 12 MP, f/2.2 , 13 mm, 1/2.55" , 1.4 µm
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Primary camera resolution12000 x 9000 pixels8000 x 6000 pixels
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Primary camera video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS1080p@30/60fps
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Primary camera flashLED flashdual-LED dual-tone flash
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Camera featuresAutofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, laser autofocusAutofocus, digital zoom, digital image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus
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DxOMark photo128-
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DxOMark zoom76-
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DxOMark video98-
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DxOMark camera score121-
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Selfie camera
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Selfie camera type-Single
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Selfie camera(wide) , 40 MP, f/2.2 , 80˚ , 26 mm, 1/2.8" , 0.7 µm(wide) , 8 MP, f/2.0 , 1/4" , 1.12 µm
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Selfie camera resolution7968 x 5480 pixels3264 x 2448 pixels
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Selfie camera featuresAutofocus, HDR, phase detection autofocusFace detection, face unlock, HDR
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Selfie camera video4K@30/60fps, 1080p@30fps1080p@30/60fps
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DxOMark photo105-
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DxOMark video93-
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DxOMark camera score100-
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Sound
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3.5mm jackNoYes
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LoudspeakerYes, with stereo speakersYes
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EarpieceYesYes
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6EWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
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WLAN WiFi HotspotYesYes
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WLAN WiFi DirectYesYes
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WLAN WiFi Dual BandYesYes
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USBType-C 3.2Type-C 2.0
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USB On-The-GoYesYes
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Bluetoothv5.2v5.1
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Infrared-Yes
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NFCYesNo
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GPSYes, with A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer, compass, fingerprint, gyroscope, proximity
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Browser
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HTMLHTML5HTML5
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Battery
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Battery typeLi-IonLi-Po
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Battery capacity5000 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYesYes, 33W
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Wireless reverse chargingYes-
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Fast wireless chargingQi/PMA-
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DxOMark autonomy48-
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DxOMark charging74-
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DxOMark efficiency53-
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DxOMark battery score57-
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Tests and performance
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Antutu677991 (v8)389210 (v9)
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Geekbench(single-core)1096 (v5.2)602 (v5.2)
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Geekbench(multi-core)3723 (v5.2)1891 (v5.2)
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SAR value
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SAR(head)0.77 W/kg-
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SAR(body)1.02 W/kg-
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SAR EU(head)0.71 W/kg-
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SAR EU(body)1.58 W/kg-
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Cost
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Price1200 USD170 USD
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Multimedia
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Radio-Unspecified