Google Pixel 6a vs Samsung Galaxy S21 Ultra 5G
Google Pixel 6a
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 800, 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 42, 48, 66, 71 - USA/Canada; 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 48, 66, 71 - global versionLTE 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, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - USA/Canada; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 40, 48, 66, 71, 77, 78, 260, 261 - USA; 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 40, 48, 66, 71, 77, 78 SA/NSA/Sub6 - global version5G 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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EV-DO speedEV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload-
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LTE speedLTE-A (CA)LTE-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 announced2022-052021-01
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Status2022-072021-01
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Design
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BuildGlass front (Gorilla Glass 3), aluminum frame, plastic backGlass front (Gorilla Glass Victus), glass back (Gorilla Glass), aluminum frame
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SIMNano-SIM and/or eSIMSingle SIM (Nano-SIM and/or eSIM) or Dual SIM (Nano-SIM and/or eSIM, dual stand-by)
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Height152.2 mm165.1 mm
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Width71.8 mm75.6 mm
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Thickness8.9 mm8.9 mm
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Weight178 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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ColorsChalk, Charcoal, SageBlack, Brown, Silver, Navy, Titanium
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Display
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Display typeOLEDDynamic AMOLED 2X
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Physical size6.1 inches6.8 inches
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Resolution1080 x 2400 pixels1440 x 3200 pixels
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Pixel density429 ppi515 ppi
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Display colors1677721616777216
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ProtectionCorning Gorilla Glass 3Scratch resistant, Corning Gorilla Glass Victus
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Display featuresAlways-on display, HDR120Hz, 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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CPUDual-core 2.8 GHz Cortex-X1Single-core 2.9 GHz Cortex-X1
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CPU(second)dual-core 2.25 GHz Cortex-A76Triple-core 2.80 GHz Cortex-A78
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CPU(third)Quad-core 1.8 GHz Cortex-A55Quad-core 2.2 GHz Cortex-A55
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ChipsetGoogle TensorExynos 2100
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GPUMali-G78 MP20Mali-G78 MP14
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Memory RAM6 GB12, 16 GB
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Internal storage128 GB128, 256, 512 GB
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Memory cardNoNo
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StorageUFS 3.1UFS 3.1
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OS
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OSAndroid 12Android 11, One UI 3.1
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Main camera
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Camera typeDualQuad
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Main camera(wide) , 12.2 MP, f/1.7 , 77˚ , 27 mm, 1/2.55" , 1.4 µm, 7x digital zoom(wide) , 108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm
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(ultrawide) , 12 MP, f/2.2 , 114˚ , 17 mm, 1.25 µm(periscope telephoto) , 10 MP, f/4.9 , 1.22 µm, 1/3.24" , 10x optical zoom
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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 resolution4032 x 3024 pixels12000 x 9000 pixels
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Primary camera video4K@30/60fps, 1080p@30/60/120/240fps; gyro-EIS, OIS8K@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, continuous shooting, digital 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, night sight, magic eraserAutofocus, 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(wide) , 8 MP, f/2.0 , 84˚ , 24 mm, 1.12 µm(wide) , 40 MP, f/2.2 , 80˚ , 26 mm, 0.7 µm, 1/2.8"
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Selfie camera resolution3264 x 2448 pixels7968 x 5480 pixels
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Selfie camera featuresFace unlock, HDR, real toneAutofocus, 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 jackNoNo
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LoudspeakerYes, with stereo speakersYes, 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 3.1Type-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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BDS-Yes
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QZSSYes-
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Features
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SensorsAccelerometer, barometer, 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-PoLi-Ion
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Battery capacity4410 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingUSB Power Delivery 2.0, 18WYes
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Wireless reverse charging-Yes
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Fast wireless charging-Qi/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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Tests and performance
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Antutu735300 (v9)677991 (v8)
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Geekbench(single-core)1050 (v5.2)1096 (v5.2)
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Geekbench(multi-core)2833 (v5.2)3723 (v5.2)
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Cost
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Price450 USD1200 USD
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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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