Ulefone Armor 21 vs vivo iQOO U3x 4G
Ulefone Armor 21
vivo iQOO U3x 4G
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 850, 900, 1800, 1900; CDMA 800
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3G networkHSDPA 850, 900, 1700(AWS), 1900, 2100HSDPA 850, 900, 1900, 2100; CDMA2000 1x
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4G networkLTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 19, 20, 28, 34, 38, 39, 40, 41, 66LTE frequency band 1, 3, 5, 8, 34, 38, 39, 40, 41
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HSDPA speed-42.2 Mbps
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HSUPA speed-5.76 Mbps
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EV-DO speedEV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload-
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LTE speedLTELTE, 800 Mbps download, 210 Mbps upload
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GPRSYesYes
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EDGEYesYes
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Availability
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Oficially announced2023-052021-06
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Status2023-052021-06
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Design
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BuildPolycarbonate, TPU, metalGlass front, plastic back, plastic frame
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SIMDual SIM (Nano-SIM, dual stand-by)Dual SIM (Nano-SIM, dual stand-by)
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Height176 mm164.4 mm
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Width81.6 mm76.3 mm
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Thickness18.1 mm8.4 mm
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Weight400 g191.4 g
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WaterproofIP68/IP69K (1.5m and 30 mins)-
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Dust proofIP68/IP69K-
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MIL-STD-810HYes-
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ColorsBlackBlack, Silver
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Display
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Display typeIPS LCDIPS LCD
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Physical size6.58 inches6.51 inches
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Resolution1080 x 2408 pixels720 x 1600 pixels
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Pixel density401 ppi270 ppi
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Display colors1677721616777216
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ProtectionScratch resistantScratch resistant, 2.5D curved glass screen
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Hardware
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CPUOcta-coreOcta-core
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CPUDual-core 2.2 GHz Cortex-A76Dual-core 2.0 GHz Cortex-A75
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CPU(second)Hexa-core 2.0 GHz Cortex-A55Hexa-core 1.8 GHz Cortex-A55
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ChipsetMediaTek MT8781 Helio G99Mediatek Helio G80
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GPUMali-G57 MC2Mali-G52 MC2
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Memory RAM8 GB4, 6 GB
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Internal storage256 GB128 GB
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Memory cardmicroSD, microSDHC, microSDXCmicroSD, microSDHC, microSDXC
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Memory card max2 TB1 TB
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Storage-eMMC 5.1
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OS
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OSAndroid 13Android 11, OriginOS 1.0 for iQOO
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Main camera
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Camera typeDualDual
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Main camera(wide) , 64 MP, f/1.9 , 0.8 µm(wide) , 13 MP, f/2.2 , 4x digital zoom
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(night vision) , 24 MP, f/1.8(depth) , 2 MP, f/2.4
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Primary camera resolution9280 x 6180 pixels4160 x 3120 pixels
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Primary camera video-1080p@30fps
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Primary camera flashLED flashLED flash
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Camera featuresAutofocus, continuous shooting, digital zoom, 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, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus
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Selfie camera
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Selfie camera typeSingleSingle
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Selfie camera(wide) , 16 MP, f/2.2 , 1.0 µm(wide) , 8 MP, f/1.8
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Selfie camera resolution4608 x 3456 pixels3264 x 2448 pixels
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Selfie camera featuresFace unlock, HDR, face detectionFace unlock
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Selfie camera video1080p@30fps1080p@30fps
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Sound
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3.5mm jackYesYes
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LoudspeakerYesYes
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EarpieceYesYes
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Multimedia
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RadioStereo FM radio, RDS, recordingNo
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Connectivity
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WLANWi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11acWi-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 Direct-Yes
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WLAN WiFi Dual BandYesYes
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USBType-C 2.0microUSB 2.0
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USB On-The-GoYesYes
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Bluetoothv5.2v5.0
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Bluetooth A2DPYesYes
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bluetooth LEYesYes
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Bluetooth AptX-aptX
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InfraredYes-
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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, 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 capacity9600 mAh5000 mAh
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Battery removableNon-removableNon-removable
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Fast battery chargingYes, 33WYes, 18W
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Talk time 4G-24.1 h
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Tests and performance
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Antutu370000 (v9)200000 (v8)
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Geekbench(single-core)567 (v5.2)480 (v5.2)
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Geekbench(multi-core)1857 (v5.2)1649 (v5.2)
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Cost
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Price240 USD140 USD
