Samsung Galaxy S21 Ultra 5G vs Xiaomi Redmi K70 Pro
Samsung Galaxy S21 Ultra 5G
Xiaomi Redmi K70 Pro
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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 800, 850, 900, 1700(AWS), 2100; CDMA2000 1x
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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, 4, 5, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42, 48, 66
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5G network5G band SA/NSA/Sub6/mmWave5G band 1, 3, 5, 8, 28, 38, 41, 48, 66, 77, 78 SA/NSA
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 Mbps-
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LTE speedLTE-A (CA), 2000 Mbps download, 200 Mbps uploadLTE-A
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2021-012023-11
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Status2021-012023-11
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Design
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BuildGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frameAluminium alloy, 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 mm160.9 mm
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Width75.6 mm75 mm
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Thickness8.9 mm8.2 mm
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Weight227 (Sub6) / 229 (mmWave) g209 g
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PaymentSamsung Pay (Visa, MasterCard certified)-
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WaterproofIP68 (1.5m and 30 mins)-
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Dust proofIP68-
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ColorsBlack, Brown, Silver, Navy, TitaniumBlack, Blue/Green, Lamborgini Green, Lamborgini Yellow, Silver
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Display
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Display typeDynamic AMOLED 2XOLED
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Physical size6.8 inches6.67 inches
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Resolution1440 x 3200 pixels1440 x 3200 pixels
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Pixel density515 ppi526 ppi
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Display colors1677721668719476736
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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, Dolby Vision, HDR10+, 4000 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-X1Single-core 3.3 GHz Cortex-X4
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CPU(second)Triple-core 2.80 GHz Cortex-A78Penta-core 3.2 GHz Cortex-A720
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CPU(third)Quad-core 2.2 GHz Cortex-A55Dual-core 2.3 GHz Cortex-A520
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ChipsetExynos 2100Qualcomm SM8650-AB Snapdragon 8 Gen 3
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GPUMali-G78 MP14Adreno 750
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Memory RAM12, 16 GB12, 16, 24 GB
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Internal storage128, 256, 512 GB256, 512, 1024 GB
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Memory cardNoNo
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StorageUFS 3.1UFS 4.0
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OS
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OSAndroid 11, One UI 3.1Android 14, HyperOS
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Main camera
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Camera typeQuadTriple
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Main camera(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm(wide) , 50 MP, f/1.6 , 1/1.55" , 1.0 µm
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(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom(telephoto) , 50 MP, 2x optical zoom
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(telephoto) , 10 MP, f/2.4 , 70 mm, 1/3.24" , 1.22 µm, 3x optical zoom(ultrawide) , 12 MP
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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 pixels8120 x 6180 pixels
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Primary camera video8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS8K@24fps, 4K@24/30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS
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Primary camera flashLED flashLED 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, continuous shooting, digital zoom, optical zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus, flicker sensor
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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) , 16 MP
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Selfie camera resolution7968 x 5480 pixels4608 x 3456 pixels
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Selfie camera featuresAutofocus, HDR, phase detection autofocusFace unlock, HDR, face detection
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Selfie camera video4K@30/60fps, 1080p@30fps1080p@30/60fps, gyro-EIS
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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 jackNoNo
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LoudspeakerYes, with stereo speakersYes, with stereo speakers
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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, 802.11ax, 802.11be
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WLAN WiFi HotspotYes-
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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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Bluetoothv5.2v5.4
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX HD, aptX Adaptive
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Infrared-Yes
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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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GALILEOYesYes
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BDSYesYes
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QZSS-Yes
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NavIC-Yes
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Features
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SensorsAccelerometer, barometer, compass, fingerprint, gyroscope, proximityAccelerometer, color spectrum, 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 chargingYesQuick Charge 3+, 120W (100% in 18 min)
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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)2247800 (v10)
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Geekbench(single-core)1096 (v5.2)2101 (v6.1)
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Geekbench(multi-core)3723 (v5.2)6524 (v6.1)
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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 USD470 USD
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Multimedia
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Radio-No
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