Xiaomi Redmi K40 vs ZTE nubia Z50 Ultra
Xiaomi Redmi K40
ZTE nubia Z50 Ultra
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Network
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2G networkGSM 850, 900, 1800, 1900; CDMA 800GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xHSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 18, 19, 26, 28, 34, 38, 39, 40, 41, 42LTE frequency band 1, 3, 4, 5, 7, 8, 12, 17, 20, 34, 38, 39, 40, 41
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5G network5G band 1, 3, 28, 41, 77, 78 SA/NSA/Sub65G band 1, 3, 28, 41, 78, 79 SA/NSA
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HSDPA speed42.2 Mbps-
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HSUPA speed5.76 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, 1174 Mbps download, 210 Mbps uploadLTE-A (CA)
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GPRSYesYes
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EDGEClass 8Yes
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Availability
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Oficially announced2021-022023-03
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Status2021-032023-03
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Design
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BuildGlass, MetalAluminium alloy, AG glass
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height163.7 mm169.9 mm
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Width76.4 mm76.3 mm
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Thickness7.8 mm8.3 mm
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Weight196 g228 g
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ColorsAurora, Black, WhiteBlack, Silver, Starry Sky
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Display
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Display typeSuper AMOLEDAMOLED
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Physical size6.67 inches6.8 inches
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Resolution1080 x 2400 pixels1116 x 2480 pixels
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Pixel density395 ppi400 ppi
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Display colors167772161073741824
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ProtectionScratch resistant, 3D curved glass screen, Corning Gorilla Glass 5-
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Display features120Hz, HDR10+, 1300 nits (peak), sunscreen 3.0, night light screen120Hz, HDR10+, 1500 nits (peak)
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Hardware
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CPUOcta-coreOcta-core
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CPUSingle-core 3.2 GHz Kryo 585Single-core 3.2 GHz Cortex-X3
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CPU(second)Triple-core 2.42 GHz Kryo 585dual-core 2.8 GHz Cortex-A715
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CPU(third)Quad-core 1.80 GHz Kryo 585Dual-core 2.8 GHz Cortex-A710
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CPU(fourth)Triple-core 2.0 GHz Cortex-A510
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ChipsetQualcomm SM8250-AC Snapdragon 870 5GQualcomm SM8550-AB Snapdragon 8 Gen 2
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GPUAdreno 650Adreno 740
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Internal storage128, 256 GB256, 512, 1024 GB
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Memory RAM6, 8, 12 GB8, 12, 16 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, MIUI 12Android 13, MyOS 13
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Main camera
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Camera typeTripleTriple
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Main camera(wide) , 48 MP, f/1.8 , 26 mm, 1/2" , 0.8 µm(standard) , 64 MP, f/1.6 , 35 mm, 1/1.3" , 1.0 µm
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(ultrawide) , 8 MP, f/2.2 , 119˚(periscope telephoto) , 64 MP, f/3.3 , 85 mm, 1/2" , 3.3x optical zoom
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(macro) , 5 MP, 50 mm, 1/5.0" , 1.12 µm(ultrawide) , 50 MP, 14 mm, 116˚ , f/2.x
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Primary camera resolution8000 x 6000 pixels9280 x 6920 pixels
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Primary camera video4K@30fps, 1080p@30/60/120/240/960fps, gyro-EIS8K@30fps, 4K@30/60/120fps, 1080p@30/60fps, gyro-EIS, HDR10, 10‑bit video
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Primary camera flashLED flashRing-LED, dual-tone 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 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, macro-mode, phase detection autofocus, laser autofocus
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 20 MP, 1/3.4" , 0.8 µm(wide) , 16 MP, 1/2.8" , 1.22 µm, f/2.0 , 26 mm
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Selfie camera resolution5184 x 3880 pixels4608 x 3456 pixels
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Selfie camera featuresFace unlock, HDRFace unlock, HDR
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Selfie camera video1080p@30fps, 720p@120fps1080p@30fps
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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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RadioNoNo
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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, 802.11be
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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 2.0Type-C 3.1
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USB On-The-GoYesYes
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Bluetoothv5.1v5.3
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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InfraredYes-
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NFCYesYes, eSE
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GPSYes, with dual-band A-GPSYes, with A-GPS
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GLONASSYesYes
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GALILEOYesYes
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BDSYesYes
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QZSSYes-
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NavICYes-
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Features
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SensorsAccelerometer, color spectrum, 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-PoLi-Po
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Battery capacity4520 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingQuick Charge 3.0 (100% in 52 min)Yes, 80W
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Tests and performance
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Antutu673599 (v8)1251377 (v9)
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Geekbench(single-core)928 (v5.2)1388 (v5.2)
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Geekbench(multi-core)3260 (v5.2)4511 (v5.2)
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Cost
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Price470 USD570 USD