HTC U23 vs Samsung Galaxy S21 Ultra 5G
HTC U23
Samsung Galaxy S21 Ultra 5G
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G networkLTE frequency band 1, 3, 5, 7, 8, 12, 17, 20, 28, 38, 39, 40, 41LTE 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, 71
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5G network5G band 1, 3, 7, 20, 28, 41, 78 SA/NSA5G band SA/NSA/Sub6/mmWave
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HSDPA speed42.2 Mbps42.2 Mbps
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HSUPA speed5.76 Mbps5.76 Mbps
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LTE speedLTE-ALTE-A (CA), 2000 Mbps download, 200 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2023-072021-01
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Status2023-072021-01
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Design
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BuildMetal, glassGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
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SIMDual SIM (Nano-SIM, dual stand-by)Single SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
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Height166.6 mm165.1 mm
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Width77.1 mm75.6 mm
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Thickness8.9 mm8.9 mm
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Weight202 g227 (Sub6) / 229 (mmWave) g
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Payment-Samsung Pay (Visa, MasterCard certified)
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WaterproofIP67 (1.5m for 30 mins)IP68 (1.5m and 30 mins)
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Dust proofIP67IP68
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ColorsBlue, VioletBlack, Brown, Silver, Navy, Titanium
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Display
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Display typeOLEDDynamic AMOLED 2X
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Physical size6.7 inches6.8 inches
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Resolution1080 x 2400 pixels1440 x 3200 pixels
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Pixel density393 ppi515 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass VictusScratch resistant, Corning Gorilla Glass Victus
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Display features120Hz120Hz, HDR10+, 1500 nits (peak), Infinity-O display, Always-On display
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DxOMark display score-91
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 2.4 GHz Cortex-A710Single-core 2.9 GHz Cortex-X1
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CPU(second)Triple-core 2.36 GHz Cortex-A710Triple-core 2.80 GHz Cortex-A78
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CPU(third)Quad-core 1.8 GHz Cortex-A510Quad-core 2.2 GHz Cortex-A55
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ChipsetQualcomm SM7450-AB Snapdragon 7 Gen 1Exynos 2100
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GPUAdreno 644Mali-G78 MP14
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Memory RAM8 GB12, 16 GB
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Internal storage128 GB128, 256, 512 GB
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Memory cardmicroSD, microSDHC, microSDXCNo
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Storage-UFS 3.1
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OS
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OSAndroid 13Android 11, One UI 3.1
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Main camera
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Camera typeTripleQuad
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Main camera(wide) , 64 MP, f/1.9(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm
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(ultrawide) , 8 MP, f/2.4 , 120˚ , 1/4.0" , 1.12 µm(periscope telephoto) , 10 MP, f/4.9 , 1/3.24" , 1.22 µm, 10x optical zoom
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(depth) , 2 MP, f/2.4(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 resolution9280 x 6920 pixels12000 x 9000 pixels
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Primary camera video4K@30fps, 1080p@30fps, gyro-EIS8K@24fps, 4K@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, stereo sound rec., gyro-EIS
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Primary camera flashdual-LED flashLED flash
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Camera featuresAutofocus, 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 autofocusAutofocus, 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 autofocus
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DxOMark photo-128
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DxOMark zoom-76
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DxOMark video-98
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DxOMark camera score-121
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Selfie camera
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Selfie camera typeSingle-
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Selfie camera(wide) , 32 MP, f/2.5 , 1/2.8" , 0.8 µm(wide) , 40 MP, f/2.2 , 1/2.8" , 0.7 µm, 80˚ , 26 mm
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Selfie camera resolution6560 x 4928 pixels7968 x 5480 pixels
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Selfie camera featuresFace unlock, face detection, HDRAutofocus, HDR, phase detection autofocus
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Selfie camera video1080p@30fps4K@30/60fps, 1080p@30fps
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DxOMark photo-105
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DxOMark video-93
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DxOMark camera score-100
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Sound
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3.5mm jackYesNo
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LoudspeakerYesYes, with stereo speakers
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EarpieceYesYes
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Multimedia
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RadioNo-
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11axWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax, 6E
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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 3.0Type-C 3.2
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USB On-The-Go-Yes
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Bluetoothv5.2v5.2
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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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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Features
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SensorsAccelerometer, compass, fingerprint, gyroscope, proximityAccelerometer, barometer, 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-Ion
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Battery capacity4600 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes, 30WYes
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Reverse chargingYes-
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Wireless reverse chargingYes, 5WYes
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Fast wireless chargingQi, 15WQi/PMA
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DxOMark autonomy-48
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DxOMark charging-74
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DxOMark efficiency-53
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DxOMark battery score-57
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Cost
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Price490 USD1200 USD
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Tests and performance
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Antutu-677991 (v8)
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Geekbench(single-core)-1096 (v5.2)
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Geekbench(multi-core)-3723 (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